Complex analysis of the optimal coefficient of the share of cogeneration in district heating systems
In cogeneration units cooperating with district heating systems the power rating of the turbine must not be chosen to cover the maximum demand for heat. This depends on the character of the duration curve of external temperature conditioning the heat demand for space heating and ventilation. The pow...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Gładysz, Paweł [verfasserIn] |
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2013transfer abstract |
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| Schlagwörter: |
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| Umfang: |
11 |
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| Übergeordnetes Werk: |
Enthalten in: Rheological analysis of itraconazole-polymer mixtures to determine optimal melt extrusion temperature for development of amorphous solid dispersion - Solanki, Nayan ELSEVIER, 2017, the international journal, Amsterdam [u.a.] |
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| Übergeordnetes Werk: |
volume:62 ; year:2013 ; day:1 ; month:12 ; pages:12-22 ; extent:11 |
| Links: |
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| DOI / URN: |
10.1016/j.energy.2013.04.032 |
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| 245 | 1 | 0 | |a Complex analysis of the optimal coefficient of the share of cogeneration in district heating systems |
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| 520 | |a In cogeneration units cooperating with district heating systems the power rating of the turbine must not be chosen to cover the maximum demand for heat. This depends on the character of the duration curve of external temperature conditioning the heat demand for space heating and ventilation. The power rating of the turbine in a CHP (combined heat and power) unit ought to be chosen according to the optimal coefficient of the share of cogeneration. This coefficient defines the ratio of the maximum heat flux from the heating steam turbine to the maximum demand for heat. The optimal coefficient of the share of cogeneration depends mainly on the ratio of heat required for the production of hot tap water to the heat needed for space heating and ventilation, and additionally on the benefits of promoting high-efficiency cogeneration, biomass co-firing and the increase of the power output of the turbogenerator during the peak load time thanks to thermal storage. The paper presents a complex algorithm for choosing the optimal coefficient of the share of cogeneration in district heating systems. The final results of investigations are empirical equations describing the influence of those factors on the optimal value of the share of cogeneration in district heating systems with or without thermal storage. The wish of the EU to reduce CO2 emissions in order to protect the climate has made the authors find it necessary to assess the influence of CO2 emission allowance on the value of the optimal coefficient of the share of cogeneration. The free CO2 emission allowances during the transitional period have not been taken into account due to the lack of final political decisions in this matter. The thermo-economical impact of biomass co-firing on the optimal value of the share of cogeneration has been assessed based on the present support obligatory in Poland; also the planned new Polish act for RES (renewable energy sources) has been analysed as one of the scenarios. In the absence of a final version of the new RES act, the authors assumed a complete withdrawal of supporting the biomass co-firing technology in centralized systems, which seems to be the intention of the Polish legislature. It has been assumed that the support of high-efficiency cogeneration will be continued according to the existing model. The approach presented in the paper may be applied both in back-pressure CHP plants and in extraction-condensing CHP plants. | ||
| 520 | |a In cogeneration units cooperating with district heating systems the power rating of the turbine must not be chosen to cover the maximum demand for heat. This depends on the character of the duration curve of external temperature conditioning the heat demand for space heating and ventilation. The power rating of the turbine in a CHP (combined heat and power) unit ought to be chosen according to the optimal coefficient of the share of cogeneration. This coefficient defines the ratio of the maximum heat flux from the heating steam turbine to the maximum demand for heat. The optimal coefficient of the share of cogeneration depends mainly on the ratio of heat required for the production of hot tap water to the heat needed for space heating and ventilation, and additionally on the benefits of promoting high-efficiency cogeneration, biomass co-firing and the increase of the power output of the turbogenerator during the peak load time thanks to thermal storage. The paper presents a complex algorithm for choosing the optimal coefficient of the share of cogeneration in district heating systems. The final results of investigations are empirical equations describing the influence of those factors on the optimal value of the share of cogeneration in district heating systems with or without thermal storage. The wish of the EU to reduce CO2 emissions in order to protect the climate has made the authors find it necessary to assess the influence of CO2 emission allowance on the value of the optimal coefficient of the share of cogeneration. The free CO2 emission allowances during the transitional period have not been taken into account due to the lack of final political decisions in this matter. The thermo-economical impact of biomass co-firing on the optimal value of the share of cogeneration has been assessed based on the present support obligatory in Poland; also the planned new Polish act for RES (renewable energy sources) has been analysed as one of the scenarios. In the absence of a final version of the new RES act, the authors assumed a complete withdrawal of supporting the biomass co-firing technology in centralized systems, which seems to be the intention of the Polish legislature. It has been assumed that the support of high-efficiency cogeneration will be continued according to the existing model. The approach presented in the paper may be applied both in back-pressure CHP plants and in extraction-condensing CHP plants. | ||
| 650 | 7 | |a Guarantees of origin |2 Elsevier | |
| 650 | 7 | |a Cogeneration |2 Elsevier | |
| 650 | 7 | |a Biomass co-firing |2 Elsevier | |
| 650 | 7 | |a Thermal storage |2 Elsevier | |
| 650 | 7 | |a District heating systems |2 Elsevier | |
| 700 | 1 | |a Ziębik, Andrzej |4 oth | |
| 773 | 0 | 8 | |i Enthalten in |n Elsevier Science |a Solanki, Nayan ELSEVIER |t Rheological analysis of itraconazole-polymer mixtures to determine optimal melt extrusion temperature for development of amorphous solid dispersion |d 2017 |d the international journal |g Amsterdam [u.a.] |w (DE-627)ELV000529575 |
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10.1016/j.energy.2013.04.032 doi GBVA2013011000021.pica (DE-627)ELV016893557 (ELSEVIER)S0360-5442(13)00343-5 DE-627 ger DE-627 rakwb eng 600 600 DE-600 610 VZ 15,3 ssgn PHARM DE-84 fid 44.40 bkl Gładysz, Paweł verfasserin aut Complex analysis of the optimal coefficient of the share of cogeneration in district heating systems 2013transfer abstract 11 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier In cogeneration units cooperating with district heating systems the power rating of the turbine must not be chosen to cover the maximum demand for heat. This depends on the character of the duration curve of external temperature conditioning the heat demand for space heating and ventilation. The power rating of the turbine in a CHP (combined heat and power) unit ought to be chosen according to the optimal coefficient of the share of cogeneration. This coefficient defines the ratio of the maximum heat flux from the heating steam turbine to the maximum demand for heat. The optimal coefficient of the share of cogeneration depends mainly on the ratio of heat required for the production of hot tap water to the heat needed for space heating and ventilation, and additionally on the benefits of promoting high-efficiency cogeneration, biomass co-firing and the increase of the power output of the turbogenerator during the peak load time thanks to thermal storage. The paper presents a complex algorithm for choosing the optimal coefficient of the share of cogeneration in district heating systems. The final results of investigations are empirical equations describing the influence of those factors on the optimal value of the share of cogeneration in district heating systems with or without thermal storage. The wish of the EU to reduce CO2 emissions in order to protect the climate has made the authors find it necessary to assess the influence of CO2 emission allowance on the value of the optimal coefficient of the share of cogeneration. The free CO2 emission allowances during the transitional period have not been taken into account due to the lack of final political decisions in this matter. The thermo-economical impact of biomass co-firing on the optimal value of the share of cogeneration has been assessed based on the present support obligatory in Poland; also the planned new Polish act for RES (renewable energy sources) has been analysed as one of the scenarios. In the absence of a final version of the new RES act, the authors assumed a complete withdrawal of supporting the biomass co-firing technology in centralized systems, which seems to be the intention of the Polish legislature. It has been assumed that the support of high-efficiency cogeneration will be continued according to the existing model. The approach presented in the paper may be applied both in back-pressure CHP plants and in extraction-condensing CHP plants. In cogeneration units cooperating with district heating systems the power rating of the turbine must not be chosen to cover the maximum demand for heat. This depends on the character of the duration curve of external temperature conditioning the heat demand for space heating and ventilation. The power rating of the turbine in a CHP (combined heat and power) unit ought to be chosen according to the optimal coefficient of the share of cogeneration. This coefficient defines the ratio of the maximum heat flux from the heating steam turbine to the maximum demand for heat. The optimal coefficient of the share of cogeneration depends mainly on the ratio of heat required for the production of hot tap water to the heat needed for space heating and ventilation, and additionally on the benefits of promoting high-efficiency cogeneration, biomass co-firing and the increase of the power output of the turbogenerator during the peak load time thanks to thermal storage. The paper presents a complex algorithm for choosing the optimal coefficient of the share of cogeneration in district heating systems. The final results of investigations are empirical equations describing the influence of those factors on the optimal value of the share of cogeneration in district heating systems with or without thermal storage. The wish of the EU to reduce CO2 emissions in order to protect the climate has made the authors find it necessary to assess the influence of CO2 emission allowance on the value of the optimal coefficient of the share of cogeneration. The free CO2 emission allowances during the transitional period have not been taken into account due to the lack of final political decisions in this matter. The thermo-economical impact of biomass co-firing on the optimal value of the share of cogeneration has been assessed based on the present support obligatory in Poland; also the planned new Polish act for RES (renewable energy sources) has been analysed as one of the scenarios. In the absence of a final version of the new RES act, the authors assumed a complete withdrawal of supporting the biomass co-firing technology in centralized systems, which seems to be the intention of the Polish legislature. It has been assumed that the support of high-efficiency cogeneration will be continued according to the existing model. The approach presented in the paper may be applied both in back-pressure CHP plants and in extraction-condensing CHP plants. Guarantees of origin Elsevier Cogeneration Elsevier Biomass co-firing Elsevier Thermal storage Elsevier District heating systems Elsevier Ziębik, Andrzej oth Enthalten in Elsevier Science Solanki, Nayan ELSEVIER Rheological analysis of itraconazole-polymer mixtures to determine optimal melt extrusion temperature for development of amorphous solid dispersion 2017 the international journal Amsterdam [u.a.] (DE-627)ELV000529575 volume:62 year:2013 day:1 month:12 pages:12-22 extent:11 https://doi.org/10.1016/j.energy.2013.04.032 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U FID-PHARM SSG-OLC-PHA SSG-OPC-PHA 44.40 Pharmazie Pharmazeutika VZ AR 62 2013 1 1201 12-22 11 045F 600 |
| spelling |
10.1016/j.energy.2013.04.032 doi GBVA2013011000021.pica (DE-627)ELV016893557 (ELSEVIER)S0360-5442(13)00343-5 DE-627 ger DE-627 rakwb eng 600 600 DE-600 610 VZ 15,3 ssgn PHARM DE-84 fid 44.40 bkl Gładysz, Paweł verfasserin aut Complex analysis of the optimal coefficient of the share of cogeneration in district heating systems 2013transfer abstract 11 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier In cogeneration units cooperating with district heating systems the power rating of the turbine must not be chosen to cover the maximum demand for heat. This depends on the character of the duration curve of external temperature conditioning the heat demand for space heating and ventilation. The power rating of the turbine in a CHP (combined heat and power) unit ought to be chosen according to the optimal coefficient of the share of cogeneration. This coefficient defines the ratio of the maximum heat flux from the heating steam turbine to the maximum demand for heat. The optimal coefficient of the share of cogeneration depends mainly on the ratio of heat required for the production of hot tap water to the heat needed for space heating and ventilation, and additionally on the benefits of promoting high-efficiency cogeneration, biomass co-firing and the increase of the power output of the turbogenerator during the peak load time thanks to thermal storage. The paper presents a complex algorithm for choosing the optimal coefficient of the share of cogeneration in district heating systems. The final results of investigations are empirical equations describing the influence of those factors on the optimal value of the share of cogeneration in district heating systems with or without thermal storage. The wish of the EU to reduce CO2 emissions in order to protect the climate has made the authors find it necessary to assess the influence of CO2 emission allowance on the value of the optimal coefficient of the share of cogeneration. The free CO2 emission allowances during the transitional period have not been taken into account due to the lack of final political decisions in this matter. The thermo-economical impact of biomass co-firing on the optimal value of the share of cogeneration has been assessed based on the present support obligatory in Poland; also the planned new Polish act for RES (renewable energy sources) has been analysed as one of the scenarios. In the absence of a final version of the new RES act, the authors assumed a complete withdrawal of supporting the biomass co-firing technology in centralized systems, which seems to be the intention of the Polish legislature. It has been assumed that the support of high-efficiency cogeneration will be continued according to the existing model. The approach presented in the paper may be applied both in back-pressure CHP plants and in extraction-condensing CHP plants. In cogeneration units cooperating with district heating systems the power rating of the turbine must not be chosen to cover the maximum demand for heat. This depends on the character of the duration curve of external temperature conditioning the heat demand for space heating and ventilation. The power rating of the turbine in a CHP (combined heat and power) unit ought to be chosen according to the optimal coefficient of the share of cogeneration. This coefficient defines the ratio of the maximum heat flux from the heating steam turbine to the maximum demand for heat. The optimal coefficient of the share of cogeneration depends mainly on the ratio of heat required for the production of hot tap water to the heat needed for space heating and ventilation, and additionally on the benefits of promoting high-efficiency cogeneration, biomass co-firing and the increase of the power output of the turbogenerator during the peak load time thanks to thermal storage. The paper presents a complex algorithm for choosing the optimal coefficient of the share of cogeneration in district heating systems. The final results of investigations are empirical equations describing the influence of those factors on the optimal value of the share of cogeneration in district heating systems with or without thermal storage. The wish of the EU to reduce CO2 emissions in order to protect the climate has made the authors find it necessary to assess the influence of CO2 emission allowance on the value of the optimal coefficient of the share of cogeneration. The free CO2 emission allowances during the transitional period have not been taken into account due to the lack of final political decisions in this matter. The thermo-economical impact of biomass co-firing on the optimal value of the share of cogeneration has been assessed based on the present support obligatory in Poland; also the planned new Polish act for RES (renewable energy sources) has been analysed as one of the scenarios. In the absence of a final version of the new RES act, the authors assumed a complete withdrawal of supporting the biomass co-firing technology in centralized systems, which seems to be the intention of the Polish legislature. It has been assumed that the support of high-efficiency cogeneration will be continued according to the existing model. The approach presented in the paper may be applied both in back-pressure CHP plants and in extraction-condensing CHP plants. Guarantees of origin Elsevier Cogeneration Elsevier Biomass co-firing Elsevier Thermal storage Elsevier District heating systems Elsevier Ziębik, Andrzej oth Enthalten in Elsevier Science Solanki, Nayan ELSEVIER Rheological analysis of itraconazole-polymer mixtures to determine optimal melt extrusion temperature for development of amorphous solid dispersion 2017 the international journal Amsterdam [u.a.] (DE-627)ELV000529575 volume:62 year:2013 day:1 month:12 pages:12-22 extent:11 https://doi.org/10.1016/j.energy.2013.04.032 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U FID-PHARM SSG-OLC-PHA SSG-OPC-PHA 44.40 Pharmazie Pharmazeutika VZ AR 62 2013 1 1201 12-22 11 045F 600 |
| allfields_unstemmed |
10.1016/j.energy.2013.04.032 doi GBVA2013011000021.pica (DE-627)ELV016893557 (ELSEVIER)S0360-5442(13)00343-5 DE-627 ger DE-627 rakwb eng 600 600 DE-600 610 VZ 15,3 ssgn PHARM DE-84 fid 44.40 bkl Gładysz, Paweł verfasserin aut Complex analysis of the optimal coefficient of the share of cogeneration in district heating systems 2013transfer abstract 11 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier In cogeneration units cooperating with district heating systems the power rating of the turbine must not be chosen to cover the maximum demand for heat. This depends on the character of the duration curve of external temperature conditioning the heat demand for space heating and ventilation. The power rating of the turbine in a CHP (combined heat and power) unit ought to be chosen according to the optimal coefficient of the share of cogeneration. This coefficient defines the ratio of the maximum heat flux from the heating steam turbine to the maximum demand for heat. The optimal coefficient of the share of cogeneration depends mainly on the ratio of heat required for the production of hot tap water to the heat needed for space heating and ventilation, and additionally on the benefits of promoting high-efficiency cogeneration, biomass co-firing and the increase of the power output of the turbogenerator during the peak load time thanks to thermal storage. The paper presents a complex algorithm for choosing the optimal coefficient of the share of cogeneration in district heating systems. The final results of investigations are empirical equations describing the influence of those factors on the optimal value of the share of cogeneration in district heating systems with or without thermal storage. The wish of the EU to reduce CO2 emissions in order to protect the climate has made the authors find it necessary to assess the influence of CO2 emission allowance on the value of the optimal coefficient of the share of cogeneration. The free CO2 emission allowances during the transitional period have not been taken into account due to the lack of final political decisions in this matter. The thermo-economical impact of biomass co-firing on the optimal value of the share of cogeneration has been assessed based on the present support obligatory in Poland; also the planned new Polish act for RES (renewable energy sources) has been analysed as one of the scenarios. In the absence of a final version of the new RES act, the authors assumed a complete withdrawal of supporting the biomass co-firing technology in centralized systems, which seems to be the intention of the Polish legislature. It has been assumed that the support of high-efficiency cogeneration will be continued according to the existing model. The approach presented in the paper may be applied both in back-pressure CHP plants and in extraction-condensing CHP plants. In cogeneration units cooperating with district heating systems the power rating of the turbine must not be chosen to cover the maximum demand for heat. This depends on the character of the duration curve of external temperature conditioning the heat demand for space heating and ventilation. The power rating of the turbine in a CHP (combined heat and power) unit ought to be chosen according to the optimal coefficient of the share of cogeneration. This coefficient defines the ratio of the maximum heat flux from the heating steam turbine to the maximum demand for heat. The optimal coefficient of the share of cogeneration depends mainly on the ratio of heat required for the production of hot tap water to the heat needed for space heating and ventilation, and additionally on the benefits of promoting high-efficiency cogeneration, biomass co-firing and the increase of the power output of the turbogenerator during the peak load time thanks to thermal storage. The paper presents a complex algorithm for choosing the optimal coefficient of the share of cogeneration in district heating systems. The final results of investigations are empirical equations describing the influence of those factors on the optimal value of the share of cogeneration in district heating systems with or without thermal storage. The wish of the EU to reduce CO2 emissions in order to protect the climate has made the authors find it necessary to assess the influence of CO2 emission allowance on the value of the optimal coefficient of the share of cogeneration. The free CO2 emission allowances during the transitional period have not been taken into account due to the lack of final political decisions in this matter. The thermo-economical impact of biomass co-firing on the optimal value of the share of cogeneration has been assessed based on the present support obligatory in Poland; also the planned new Polish act for RES (renewable energy sources) has been analysed as one of the scenarios. In the absence of a final version of the new RES act, the authors assumed a complete withdrawal of supporting the biomass co-firing technology in centralized systems, which seems to be the intention of the Polish legislature. It has been assumed that the support of high-efficiency cogeneration will be continued according to the existing model. The approach presented in the paper may be applied both in back-pressure CHP plants and in extraction-condensing CHP plants. Guarantees of origin Elsevier Cogeneration Elsevier Biomass co-firing Elsevier Thermal storage Elsevier District heating systems Elsevier Ziębik, Andrzej oth Enthalten in Elsevier Science Solanki, Nayan ELSEVIER Rheological analysis of itraconazole-polymer mixtures to determine optimal melt extrusion temperature for development of amorphous solid dispersion 2017 the international journal Amsterdam [u.a.] (DE-627)ELV000529575 volume:62 year:2013 day:1 month:12 pages:12-22 extent:11 https://doi.org/10.1016/j.energy.2013.04.032 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U FID-PHARM SSG-OLC-PHA SSG-OPC-PHA 44.40 Pharmazie Pharmazeutika VZ AR 62 2013 1 1201 12-22 11 045F 600 |
| allfieldsGer |
10.1016/j.energy.2013.04.032 doi GBVA2013011000021.pica (DE-627)ELV016893557 (ELSEVIER)S0360-5442(13)00343-5 DE-627 ger DE-627 rakwb eng 600 600 DE-600 610 VZ 15,3 ssgn PHARM DE-84 fid 44.40 bkl Gładysz, Paweł verfasserin aut Complex analysis of the optimal coefficient of the share of cogeneration in district heating systems 2013transfer abstract 11 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier In cogeneration units cooperating with district heating systems the power rating of the turbine must not be chosen to cover the maximum demand for heat. This depends on the character of the duration curve of external temperature conditioning the heat demand for space heating and ventilation. The power rating of the turbine in a CHP (combined heat and power) unit ought to be chosen according to the optimal coefficient of the share of cogeneration. This coefficient defines the ratio of the maximum heat flux from the heating steam turbine to the maximum demand for heat. The optimal coefficient of the share of cogeneration depends mainly on the ratio of heat required for the production of hot tap water to the heat needed for space heating and ventilation, and additionally on the benefits of promoting high-efficiency cogeneration, biomass co-firing and the increase of the power output of the turbogenerator during the peak load time thanks to thermal storage. The paper presents a complex algorithm for choosing the optimal coefficient of the share of cogeneration in district heating systems. The final results of investigations are empirical equations describing the influence of those factors on the optimal value of the share of cogeneration in district heating systems with or without thermal storage. The wish of the EU to reduce CO2 emissions in order to protect the climate has made the authors find it necessary to assess the influence of CO2 emission allowance on the value of the optimal coefficient of the share of cogeneration. The free CO2 emission allowances during the transitional period have not been taken into account due to the lack of final political decisions in this matter. The thermo-economical impact of biomass co-firing on the optimal value of the share of cogeneration has been assessed based on the present support obligatory in Poland; also the planned new Polish act for RES (renewable energy sources) has been analysed as one of the scenarios. In the absence of a final version of the new RES act, the authors assumed a complete withdrawal of supporting the biomass co-firing technology in centralized systems, which seems to be the intention of the Polish legislature. It has been assumed that the support of high-efficiency cogeneration will be continued according to the existing model. The approach presented in the paper may be applied both in back-pressure CHP plants and in extraction-condensing CHP plants. In cogeneration units cooperating with district heating systems the power rating of the turbine must not be chosen to cover the maximum demand for heat. This depends on the character of the duration curve of external temperature conditioning the heat demand for space heating and ventilation. The power rating of the turbine in a CHP (combined heat and power) unit ought to be chosen according to the optimal coefficient of the share of cogeneration. This coefficient defines the ratio of the maximum heat flux from the heating steam turbine to the maximum demand for heat. The optimal coefficient of the share of cogeneration depends mainly on the ratio of heat required for the production of hot tap water to the heat needed for space heating and ventilation, and additionally on the benefits of promoting high-efficiency cogeneration, biomass co-firing and the increase of the power output of the turbogenerator during the peak load time thanks to thermal storage. The paper presents a complex algorithm for choosing the optimal coefficient of the share of cogeneration in district heating systems. The final results of investigations are empirical equations describing the influence of those factors on the optimal value of the share of cogeneration in district heating systems with or without thermal storage. The wish of the EU to reduce CO2 emissions in order to protect the climate has made the authors find it necessary to assess the influence of CO2 emission allowance on the value of the optimal coefficient of the share of cogeneration. The free CO2 emission allowances during the transitional period have not been taken into account due to the lack of final political decisions in this matter. The thermo-economical impact of biomass co-firing on the optimal value of the share of cogeneration has been assessed based on the present support obligatory in Poland; also the planned new Polish act for RES (renewable energy sources) has been analysed as one of the scenarios. In the absence of a final version of the new RES act, the authors assumed a complete withdrawal of supporting the biomass co-firing technology in centralized systems, which seems to be the intention of the Polish legislature. It has been assumed that the support of high-efficiency cogeneration will be continued according to the existing model. The approach presented in the paper may be applied both in back-pressure CHP plants and in extraction-condensing CHP plants. Guarantees of origin Elsevier Cogeneration Elsevier Biomass co-firing Elsevier Thermal storage Elsevier District heating systems Elsevier Ziębik, Andrzej oth Enthalten in Elsevier Science Solanki, Nayan ELSEVIER Rheological analysis of itraconazole-polymer mixtures to determine optimal melt extrusion temperature for development of amorphous solid dispersion 2017 the international journal Amsterdam [u.a.] (DE-627)ELV000529575 volume:62 year:2013 day:1 month:12 pages:12-22 extent:11 https://doi.org/10.1016/j.energy.2013.04.032 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U FID-PHARM SSG-OLC-PHA SSG-OPC-PHA 44.40 Pharmazie Pharmazeutika VZ AR 62 2013 1 1201 12-22 11 045F 600 |
| allfieldsSound |
10.1016/j.energy.2013.04.032 doi GBVA2013011000021.pica (DE-627)ELV016893557 (ELSEVIER)S0360-5442(13)00343-5 DE-627 ger DE-627 rakwb eng 600 600 DE-600 610 VZ 15,3 ssgn PHARM DE-84 fid 44.40 bkl Gładysz, Paweł verfasserin aut Complex analysis of the optimal coefficient of the share of cogeneration in district heating systems 2013transfer abstract 11 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier In cogeneration units cooperating with district heating systems the power rating of the turbine must not be chosen to cover the maximum demand for heat. This depends on the character of the duration curve of external temperature conditioning the heat demand for space heating and ventilation. The power rating of the turbine in a CHP (combined heat and power) unit ought to be chosen according to the optimal coefficient of the share of cogeneration. This coefficient defines the ratio of the maximum heat flux from the heating steam turbine to the maximum demand for heat. The optimal coefficient of the share of cogeneration depends mainly on the ratio of heat required for the production of hot tap water to the heat needed for space heating and ventilation, and additionally on the benefits of promoting high-efficiency cogeneration, biomass co-firing and the increase of the power output of the turbogenerator during the peak load time thanks to thermal storage. The paper presents a complex algorithm for choosing the optimal coefficient of the share of cogeneration in district heating systems. The final results of investigations are empirical equations describing the influence of those factors on the optimal value of the share of cogeneration in district heating systems with or without thermal storage. The wish of the EU to reduce CO2 emissions in order to protect the climate has made the authors find it necessary to assess the influence of CO2 emission allowance on the value of the optimal coefficient of the share of cogeneration. The free CO2 emission allowances during the transitional period have not been taken into account due to the lack of final political decisions in this matter. The thermo-economical impact of biomass co-firing on the optimal value of the share of cogeneration has been assessed based on the present support obligatory in Poland; also the planned new Polish act for RES (renewable energy sources) has been analysed as one of the scenarios. In the absence of a final version of the new RES act, the authors assumed a complete withdrawal of supporting the biomass co-firing technology in centralized systems, which seems to be the intention of the Polish legislature. It has been assumed that the support of high-efficiency cogeneration will be continued according to the existing model. The approach presented in the paper may be applied both in back-pressure CHP plants and in extraction-condensing CHP plants. In cogeneration units cooperating with district heating systems the power rating of the turbine must not be chosen to cover the maximum demand for heat. This depends on the character of the duration curve of external temperature conditioning the heat demand for space heating and ventilation. The power rating of the turbine in a CHP (combined heat and power) unit ought to be chosen according to the optimal coefficient of the share of cogeneration. This coefficient defines the ratio of the maximum heat flux from the heating steam turbine to the maximum demand for heat. The optimal coefficient of the share of cogeneration depends mainly on the ratio of heat required for the production of hot tap water to the heat needed for space heating and ventilation, and additionally on the benefits of promoting high-efficiency cogeneration, biomass co-firing and the increase of the power output of the turbogenerator during the peak load time thanks to thermal storage. The paper presents a complex algorithm for choosing the optimal coefficient of the share of cogeneration in district heating systems. The final results of investigations are empirical equations describing the influence of those factors on the optimal value of the share of cogeneration in district heating systems with or without thermal storage. The wish of the EU to reduce CO2 emissions in order to protect the climate has made the authors find it necessary to assess the influence of CO2 emission allowance on the value of the optimal coefficient of the share of cogeneration. The free CO2 emission allowances during the transitional period have not been taken into account due to the lack of final political decisions in this matter. The thermo-economical impact of biomass co-firing on the optimal value of the share of cogeneration has been assessed based on the present support obligatory in Poland; also the planned new Polish act for RES (renewable energy sources) has been analysed as one of the scenarios. In the absence of a final version of the new RES act, the authors assumed a complete withdrawal of supporting the biomass co-firing technology in centralized systems, which seems to be the intention of the Polish legislature. It has been assumed that the support of high-efficiency cogeneration will be continued according to the existing model. The approach presented in the paper may be applied both in back-pressure CHP plants and in extraction-condensing CHP plants. 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Complex analysis of the optimal coefficient of the share of cogeneration in district heating systems |
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In cogeneration units cooperating with district heating systems the power rating of the turbine must not be chosen to cover the maximum demand for heat. This depends on the character of the duration curve of external temperature conditioning the heat demand for space heating and ventilation. The power rating of the turbine in a CHP (combined heat and power) unit ought to be chosen according to the optimal coefficient of the share of cogeneration. This coefficient defines the ratio of the maximum heat flux from the heating steam turbine to the maximum demand for heat. The optimal coefficient of the share of cogeneration depends mainly on the ratio of heat required for the production of hot tap water to the heat needed for space heating and ventilation, and additionally on the benefits of promoting high-efficiency cogeneration, biomass co-firing and the increase of the power output of the turbogenerator during the peak load time thanks to thermal storage. The paper presents a complex algorithm for choosing the optimal coefficient of the share of cogeneration in district heating systems. The final results of investigations are empirical equations describing the influence of those factors on the optimal value of the share of cogeneration in district heating systems with or without thermal storage. The wish of the EU to reduce CO2 emissions in order to protect the climate has made the authors find it necessary to assess the influence of CO2 emission allowance on the value of the optimal coefficient of the share of cogeneration. The free CO2 emission allowances during the transitional period have not been taken into account due to the lack of final political decisions in this matter. The thermo-economical impact of biomass co-firing on the optimal value of the share of cogeneration has been assessed based on the present support obligatory in Poland; also the planned new Polish act for RES (renewable energy sources) has been analysed as one of the scenarios. In the absence of a final version of the new RES act, the authors assumed a complete withdrawal of supporting the biomass co-firing technology in centralized systems, which seems to be the intention of the Polish legislature. It has been assumed that the support of high-efficiency cogeneration will be continued according to the existing model. The approach presented in the paper may be applied both in back-pressure CHP plants and in extraction-condensing CHP plants. |
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In cogeneration units cooperating with district heating systems the power rating of the turbine must not be chosen to cover the maximum demand for heat. This depends on the character of the duration curve of external temperature conditioning the heat demand for space heating and ventilation. The power rating of the turbine in a CHP (combined heat and power) unit ought to be chosen according to the optimal coefficient of the share of cogeneration. This coefficient defines the ratio of the maximum heat flux from the heating steam turbine to the maximum demand for heat. The optimal coefficient of the share of cogeneration depends mainly on the ratio of heat required for the production of hot tap water to the heat needed for space heating and ventilation, and additionally on the benefits of promoting high-efficiency cogeneration, biomass co-firing and the increase of the power output of the turbogenerator during the peak load time thanks to thermal storage. The paper presents a complex algorithm for choosing the optimal coefficient of the share of cogeneration in district heating systems. The final results of investigations are empirical equations describing the influence of those factors on the optimal value of the share of cogeneration in district heating systems with or without thermal storage. The wish of the EU to reduce CO2 emissions in order to protect the climate has made the authors find it necessary to assess the influence of CO2 emission allowance on the value of the optimal coefficient of the share of cogeneration. The free CO2 emission allowances during the transitional period have not been taken into account due to the lack of final political decisions in this matter. The thermo-economical impact of biomass co-firing on the optimal value of the share of cogeneration has been assessed based on the present support obligatory in Poland; also the planned new Polish act for RES (renewable energy sources) has been analysed as one of the scenarios. In the absence of a final version of the new RES act, the authors assumed a complete withdrawal of supporting the biomass co-firing technology in centralized systems, which seems to be the intention of the Polish legislature. It has been assumed that the support of high-efficiency cogeneration will be continued according to the existing model. The approach presented in the paper may be applied both in back-pressure CHP plants and in extraction-condensing CHP plants. |
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In cogeneration units cooperating with district heating systems the power rating of the turbine must not be chosen to cover the maximum demand for heat. This depends on the character of the duration curve of external temperature conditioning the heat demand for space heating and ventilation. The power rating of the turbine in a CHP (combined heat and power) unit ought to be chosen according to the optimal coefficient of the share of cogeneration. This coefficient defines the ratio of the maximum heat flux from the heating steam turbine to the maximum demand for heat. The optimal coefficient of the share of cogeneration depends mainly on the ratio of heat required for the production of hot tap water to the heat needed for space heating and ventilation, and additionally on the benefits of promoting high-efficiency cogeneration, biomass co-firing and the increase of the power output of the turbogenerator during the peak load time thanks to thermal storage. The paper presents a complex algorithm for choosing the optimal coefficient of the share of cogeneration in district heating systems. The final results of investigations are empirical equations describing the influence of those factors on the optimal value of the share of cogeneration in district heating systems with or without thermal storage. The wish of the EU to reduce CO2 emissions in order to protect the climate has made the authors find it necessary to assess the influence of CO2 emission allowance on the value of the optimal coefficient of the share of cogeneration. The free CO2 emission allowances during the transitional period have not been taken into account due to the lack of final political decisions in this matter. The thermo-economical impact of biomass co-firing on the optimal value of the share of cogeneration has been assessed based on the present support obligatory in Poland; also the planned new Polish act for RES (renewable energy sources) has been analysed as one of the scenarios. In the absence of a final version of the new RES act, the authors assumed a complete withdrawal of supporting the biomass co-firing technology in centralized systems, which seems to be the intention of the Polish legislature. It has been assumed that the support of high-efficiency cogeneration will be continued according to the existing model. The approach presented in the paper may be applied both in back-pressure CHP plants and in extraction-condensing CHP plants. |
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This depends on the character of the duration curve of external temperature conditioning the heat demand for space heating and ventilation. The power rating of the turbine in a CHP (combined heat and power) unit ought to be chosen according to the optimal coefficient of the share of cogeneration. This coefficient defines the ratio of the maximum heat flux from the heating steam turbine to the maximum demand for heat. The optimal coefficient of the share of cogeneration depends mainly on the ratio of heat required for the production of hot tap water to the heat needed for space heating and ventilation, and additionally on the benefits of promoting high-efficiency cogeneration, biomass co-firing and the increase of the power output of the turbogenerator during the peak load time thanks to thermal storage. The paper presents a complex algorithm for choosing the optimal coefficient of the share of cogeneration in district heating systems. The final results of investigations are empirical equations describing the influence of those factors on the optimal value of the share of cogeneration in district heating systems with or without thermal storage. The wish of the EU to reduce CO2 emissions in order to protect the climate has made the authors find it necessary to assess the influence of CO2 emission allowance on the value of the optimal coefficient of the share of cogeneration. The free CO2 emission allowances during the transitional period have not been taken into account due to the lack of final political decisions in this matter. The thermo-economical impact of biomass co-firing on the optimal value of the share of cogeneration has been assessed based on the present support obligatory in Poland; also the planned new Polish act for RES (renewable energy sources) has been analysed as one of the scenarios. In the absence of a final version of the new RES act, the authors assumed a complete withdrawal of supporting the biomass co-firing technology in centralized systems, which seems to be the intention of the Polish legislature. It has been assumed that the support of high-efficiency cogeneration will be continued according to the existing model. The approach presented in the paper may be applied both in back-pressure CHP plants and in extraction-condensing CHP plants.</subfield></datafield><datafield tag="520" ind1=" " ind2=" "><subfield code="a">In cogeneration units cooperating with district heating systems the power rating of the turbine must not be chosen to cover the maximum demand for heat. This depends on the character of the duration curve of external temperature conditioning the heat demand for space heating and ventilation. The power rating of the turbine in a CHP (combined heat and power) unit ought to be chosen according to the optimal coefficient of the share of cogeneration. This coefficient defines the ratio of the maximum heat flux from the heating steam turbine to the maximum demand for heat. The optimal coefficient of the share of cogeneration depends mainly on the ratio of heat required for the production of hot tap water to the heat needed for space heating and ventilation, and additionally on the benefits of promoting high-efficiency cogeneration, biomass co-firing and the increase of the power output of the turbogenerator during the peak load time thanks to thermal storage. The paper presents a complex algorithm for choosing the optimal coefficient of the share of cogeneration in district heating systems. The final results of investigations are empirical equations describing the influence of those factors on the optimal value of the share of cogeneration in district heating systems with or without thermal storage. The wish of the EU to reduce CO2 emissions in order to protect the climate has made the authors find it necessary to assess the influence of CO2 emission allowance on the value of the optimal coefficient of the share of cogeneration. The free CO2 emission allowances during the transitional period have not been taken into account due to the lack of final political decisions in this matter. The thermo-economical impact of biomass co-firing on the optimal value of the share of cogeneration has been assessed based on the present support obligatory in Poland; also the planned new Polish act for RES (renewable energy sources) has been analysed as one of the scenarios. In the absence of a final version of the new RES act, the authors assumed a complete withdrawal of supporting the biomass co-firing technology in centralized systems, which seems to be the intention of the Polish legislature. It has been assumed that the support of high-efficiency cogeneration will be continued according to the existing model. 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