Investigation into Pump Mode Flow Dynamics for a Mixed Flow PAT with Adjustable Runner Blades
The adoption of pumps as turbines (PATs) in both small-scale hydroelectric plants and water supply systems has brought about various advantages, the most recognized being cost-effectiveness compared to other hydroturbines. However, due to their lack of flow control ability, their intolerance to off-...
Ausführliche Beschreibung
Autor*in: |
Maxime Binama [verfasserIn] Kan Kan [verfasserIn] Huixiang Chen [verfasserIn] Yuan Zheng [verfasserIn] Daqing Zhou [verfasserIn] Alexis Muhirwa [verfasserIn] Godfrey M. Bwimba [verfasserIn] |
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E-Artikel |
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Sprache: |
Englisch |
Erschienen: |
2021 |
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Übergeordnetes Werk: |
In: Energies - MDPI AG, 2008, 14(2021), 9, p 2690 |
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Übergeordnetes Werk: |
volume:14 ; year:2021 ; number:9, p 2690 |
Links: |
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DOI / URN: |
10.3390/en14092690 |
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Katalog-ID: |
DOAJ085466670 |
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10.3390/en14092690 doi (DE-627)DOAJ085466670 (DE-599)DOAJ1c7530ba13ba4a41abe6286107fe580e DE-627 ger DE-627 rakwb eng Maxime Binama verfasserin aut Investigation into Pump Mode Flow Dynamics for a Mixed Flow PAT with Adjustable Runner Blades 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The adoption of pumps as turbines (PATs) in both small-scale hydroelectric plants and water supply systems has brought about various advantages, the most recognized being cost-effectiveness compared to other hydroturbines. However, due to their lack of flow control ability, their intolerance to off-design operations constitutes a tough shortfall. Moreover, since this technology is new, PAT flow dynamics are not yet well understood. Therefore, this study intends to numerically investigate the mixed-flow PAT’s pump mode flow dynamics for five operating conditions from optimum (1 Q<sub<BEP</sub<) to deep part-load (0.41 Q<sub<BEP</sub<) conditions. Moreover, the effect of runner blade angle on them is investigated, considering three angles, namely −2°, 0°, and 2°. PAT flow stability was found to deteriorate as the flow decreased, where associated pressure pulsation level worsened at different flow zones. In addition, the blade angle increase led to correspondingly increasing flow unsteadiness and pressure pulsation levels, where the pulsation frequencies from rotor-stator interactions were dominant for most flow zones. This study’s findings are of crucial importance to both scientific and engineering communities as they contribute to a thorough understanding of PAT flow dynamics. blade angle flow unsteadiness numerical simulation pressure pulsation pump as turbine Technology T Kan Kan verfasserin aut Huixiang Chen verfasserin aut Yuan Zheng verfasserin aut Daqing Zhou verfasserin aut Alexis Muhirwa verfasserin aut Godfrey M. Bwimba verfasserin aut In Energies MDPI AG, 2008 14(2021), 9, p 2690 (DE-627)572083742 (DE-600)2437446-5 19961073 nnns volume:14 year:2021 number:9, p 2690 https://doi.org/10.3390/en14092690 kostenfrei https://doaj.org/article/1c7530ba13ba4a41abe6286107fe580e kostenfrei https://www.mdpi.com/1996-1073/14/9/2690 kostenfrei https://doaj.org/toc/1996-1073 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2108 GBV_ILN_2111 GBV_ILN_2119 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 14 2021 9, p 2690 |
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10.3390/en14092690 doi (DE-627)DOAJ085466670 (DE-599)DOAJ1c7530ba13ba4a41abe6286107fe580e DE-627 ger DE-627 rakwb eng Maxime Binama verfasserin aut Investigation into Pump Mode Flow Dynamics for a Mixed Flow PAT with Adjustable Runner Blades 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The adoption of pumps as turbines (PATs) in both small-scale hydroelectric plants and water supply systems has brought about various advantages, the most recognized being cost-effectiveness compared to other hydroturbines. However, due to their lack of flow control ability, their intolerance to off-design operations constitutes a tough shortfall. Moreover, since this technology is new, PAT flow dynamics are not yet well understood. Therefore, this study intends to numerically investigate the mixed-flow PAT’s pump mode flow dynamics for five operating conditions from optimum (1 Q<sub<BEP</sub<) to deep part-load (0.41 Q<sub<BEP</sub<) conditions. Moreover, the effect of runner blade angle on them is investigated, considering three angles, namely −2°, 0°, and 2°. PAT flow stability was found to deteriorate as the flow decreased, where associated pressure pulsation level worsened at different flow zones. In addition, the blade angle increase led to correspondingly increasing flow unsteadiness and pressure pulsation levels, where the pulsation frequencies from rotor-stator interactions were dominant for most flow zones. This study’s findings are of crucial importance to both scientific and engineering communities as they contribute to a thorough understanding of PAT flow dynamics. blade angle flow unsteadiness numerical simulation pressure pulsation pump as turbine Technology T Kan Kan verfasserin aut Huixiang Chen verfasserin aut Yuan Zheng verfasserin aut Daqing Zhou verfasserin aut Alexis Muhirwa verfasserin aut Godfrey M. Bwimba verfasserin aut In Energies MDPI AG, 2008 14(2021), 9, p 2690 (DE-627)572083742 (DE-600)2437446-5 19961073 nnns volume:14 year:2021 number:9, p 2690 https://doi.org/10.3390/en14092690 kostenfrei https://doaj.org/article/1c7530ba13ba4a41abe6286107fe580e kostenfrei https://www.mdpi.com/1996-1073/14/9/2690 kostenfrei https://doaj.org/toc/1996-1073 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2108 GBV_ILN_2111 GBV_ILN_2119 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 14 2021 9, p 2690 |
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10.3390/en14092690 doi (DE-627)DOAJ085466670 (DE-599)DOAJ1c7530ba13ba4a41abe6286107fe580e DE-627 ger DE-627 rakwb eng Maxime Binama verfasserin aut Investigation into Pump Mode Flow Dynamics for a Mixed Flow PAT with Adjustable Runner Blades 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The adoption of pumps as turbines (PATs) in both small-scale hydroelectric plants and water supply systems has brought about various advantages, the most recognized being cost-effectiveness compared to other hydroturbines. However, due to their lack of flow control ability, their intolerance to off-design operations constitutes a tough shortfall. Moreover, since this technology is new, PAT flow dynamics are not yet well understood. Therefore, this study intends to numerically investigate the mixed-flow PAT’s pump mode flow dynamics for five operating conditions from optimum (1 Q<sub<BEP</sub<) to deep part-load (0.41 Q<sub<BEP</sub<) conditions. Moreover, the effect of runner blade angle on them is investigated, considering three angles, namely −2°, 0°, and 2°. PAT flow stability was found to deteriorate as the flow decreased, where associated pressure pulsation level worsened at different flow zones. In addition, the blade angle increase led to correspondingly increasing flow unsteadiness and pressure pulsation levels, where the pulsation frequencies from rotor-stator interactions were dominant for most flow zones. This study’s findings are of crucial importance to both scientific and engineering communities as they contribute to a thorough understanding of PAT flow dynamics. blade angle flow unsteadiness numerical simulation pressure pulsation pump as turbine Technology T Kan Kan verfasserin aut Huixiang Chen verfasserin aut Yuan Zheng verfasserin aut Daqing Zhou verfasserin aut Alexis Muhirwa verfasserin aut Godfrey M. Bwimba verfasserin aut In Energies MDPI AG, 2008 14(2021), 9, p 2690 (DE-627)572083742 (DE-600)2437446-5 19961073 nnns volume:14 year:2021 number:9, p 2690 https://doi.org/10.3390/en14092690 kostenfrei https://doaj.org/article/1c7530ba13ba4a41abe6286107fe580e kostenfrei https://www.mdpi.com/1996-1073/14/9/2690 kostenfrei https://doaj.org/toc/1996-1073 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2108 GBV_ILN_2111 GBV_ILN_2119 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 14 2021 9, p 2690 |
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10.3390/en14092690 doi (DE-627)DOAJ085466670 (DE-599)DOAJ1c7530ba13ba4a41abe6286107fe580e DE-627 ger DE-627 rakwb eng Maxime Binama verfasserin aut Investigation into Pump Mode Flow Dynamics for a Mixed Flow PAT with Adjustable Runner Blades 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The adoption of pumps as turbines (PATs) in both small-scale hydroelectric plants and water supply systems has brought about various advantages, the most recognized being cost-effectiveness compared to other hydroturbines. However, due to their lack of flow control ability, their intolerance to off-design operations constitutes a tough shortfall. Moreover, since this technology is new, PAT flow dynamics are not yet well understood. Therefore, this study intends to numerically investigate the mixed-flow PAT’s pump mode flow dynamics for five operating conditions from optimum (1 Q<sub<BEP</sub<) to deep part-load (0.41 Q<sub<BEP</sub<) conditions. Moreover, the effect of runner blade angle on them is investigated, considering three angles, namely −2°, 0°, and 2°. PAT flow stability was found to deteriorate as the flow decreased, where associated pressure pulsation level worsened at different flow zones. In addition, the blade angle increase led to correspondingly increasing flow unsteadiness and pressure pulsation levels, where the pulsation frequencies from rotor-stator interactions were dominant for most flow zones. This study’s findings are of crucial importance to both scientific and engineering communities as they contribute to a thorough understanding of PAT flow dynamics. blade angle flow unsteadiness numerical simulation pressure pulsation pump as turbine Technology T Kan Kan verfasserin aut Huixiang Chen verfasserin aut Yuan Zheng verfasserin aut Daqing Zhou verfasserin aut Alexis Muhirwa verfasserin aut Godfrey M. Bwimba verfasserin aut In Energies MDPI AG, 2008 14(2021), 9, p 2690 (DE-627)572083742 (DE-600)2437446-5 19961073 nnns volume:14 year:2021 number:9, p 2690 https://doi.org/10.3390/en14092690 kostenfrei https://doaj.org/article/1c7530ba13ba4a41abe6286107fe580e kostenfrei https://www.mdpi.com/1996-1073/14/9/2690 kostenfrei https://doaj.org/toc/1996-1073 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2108 GBV_ILN_2111 GBV_ILN_2119 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 14 2021 9, p 2690 |
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10.3390/en14092690 doi (DE-627)DOAJ085466670 (DE-599)DOAJ1c7530ba13ba4a41abe6286107fe580e DE-627 ger DE-627 rakwb eng Maxime Binama verfasserin aut Investigation into Pump Mode Flow Dynamics for a Mixed Flow PAT with Adjustable Runner Blades 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The adoption of pumps as turbines (PATs) in both small-scale hydroelectric plants and water supply systems has brought about various advantages, the most recognized being cost-effectiveness compared to other hydroturbines. However, due to their lack of flow control ability, their intolerance to off-design operations constitutes a tough shortfall. Moreover, since this technology is new, PAT flow dynamics are not yet well understood. Therefore, this study intends to numerically investigate the mixed-flow PAT’s pump mode flow dynamics for five operating conditions from optimum (1 Q<sub<BEP</sub<) to deep part-load (0.41 Q<sub<BEP</sub<) conditions. Moreover, the effect of runner blade angle on them is investigated, considering three angles, namely −2°, 0°, and 2°. PAT flow stability was found to deteriorate as the flow decreased, where associated pressure pulsation level worsened at different flow zones. In addition, the blade angle increase led to correspondingly increasing flow unsteadiness and pressure pulsation levels, where the pulsation frequencies from rotor-stator interactions were dominant for most flow zones. This study’s findings are of crucial importance to both scientific and engineering communities as they contribute to a thorough understanding of PAT flow dynamics. blade angle flow unsteadiness numerical simulation pressure pulsation pump as turbine Technology T Kan Kan verfasserin aut Huixiang Chen verfasserin aut Yuan Zheng verfasserin aut Daqing Zhou verfasserin aut Alexis Muhirwa verfasserin aut Godfrey M. Bwimba verfasserin aut In Energies MDPI AG, 2008 14(2021), 9, p 2690 (DE-627)572083742 (DE-600)2437446-5 19961073 nnns volume:14 year:2021 number:9, p 2690 https://doi.org/10.3390/en14092690 kostenfrei https://doaj.org/article/1c7530ba13ba4a41abe6286107fe580e kostenfrei https://www.mdpi.com/1996-1073/14/9/2690 kostenfrei https://doaj.org/toc/1996-1073 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2108 GBV_ILN_2111 GBV_ILN_2119 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 14 2021 9, p 2690 |
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Investigation into Pump Mode Flow Dynamics for a Mixed Flow PAT with Adjustable Runner Blades |
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The adoption of pumps as turbines (PATs) in both small-scale hydroelectric plants and water supply systems has brought about various advantages, the most recognized being cost-effectiveness compared to other hydroturbines. However, due to their lack of flow control ability, their intolerance to off-design operations constitutes a tough shortfall. Moreover, since this technology is new, PAT flow dynamics are not yet well understood. Therefore, this study intends to numerically investigate the mixed-flow PAT’s pump mode flow dynamics for five operating conditions from optimum (1 Q<sub<BEP</sub<) to deep part-load (0.41 Q<sub<BEP</sub<) conditions. Moreover, the effect of runner blade angle on them is investigated, considering three angles, namely −2°, 0°, and 2°. PAT flow stability was found to deteriorate as the flow decreased, where associated pressure pulsation level worsened at different flow zones. In addition, the blade angle increase led to correspondingly increasing flow unsteadiness and pressure pulsation levels, where the pulsation frequencies from rotor-stator interactions were dominant for most flow zones. This study’s findings are of crucial importance to both scientific and engineering communities as they contribute to a thorough understanding of PAT flow dynamics. |
abstractGer |
The adoption of pumps as turbines (PATs) in both small-scale hydroelectric plants and water supply systems has brought about various advantages, the most recognized being cost-effectiveness compared to other hydroturbines. However, due to their lack of flow control ability, their intolerance to off-design operations constitutes a tough shortfall. Moreover, since this technology is new, PAT flow dynamics are not yet well understood. Therefore, this study intends to numerically investigate the mixed-flow PAT’s pump mode flow dynamics for five operating conditions from optimum (1 Q<sub<BEP</sub<) to deep part-load (0.41 Q<sub<BEP</sub<) conditions. Moreover, the effect of runner blade angle on them is investigated, considering three angles, namely −2°, 0°, and 2°. PAT flow stability was found to deteriorate as the flow decreased, where associated pressure pulsation level worsened at different flow zones. In addition, the blade angle increase led to correspondingly increasing flow unsteadiness and pressure pulsation levels, where the pulsation frequencies from rotor-stator interactions were dominant for most flow zones. This study’s findings are of crucial importance to both scientific and engineering communities as they contribute to a thorough understanding of PAT flow dynamics. |
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The adoption of pumps as turbines (PATs) in both small-scale hydroelectric plants and water supply systems has brought about various advantages, the most recognized being cost-effectiveness compared to other hydroturbines. However, due to their lack of flow control ability, their intolerance to off-design operations constitutes a tough shortfall. Moreover, since this technology is new, PAT flow dynamics are not yet well understood. Therefore, this study intends to numerically investigate the mixed-flow PAT’s pump mode flow dynamics for five operating conditions from optimum (1 Q<sub<BEP</sub<) to deep part-load (0.41 Q<sub<BEP</sub<) conditions. Moreover, the effect of runner blade angle on them is investigated, considering three angles, namely −2°, 0°, and 2°. PAT flow stability was found to deteriorate as the flow decreased, where associated pressure pulsation level worsened at different flow zones. In addition, the blade angle increase led to correspondingly increasing flow unsteadiness and pressure pulsation levels, where the pulsation frequencies from rotor-stator interactions were dominant for most flow zones. This study’s findings are of crucial importance to both scientific and engineering communities as they contribute to a thorough understanding of PAT flow dynamics. |
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However, due to their lack of flow control ability, their intolerance to off-design operations constitutes a tough shortfall. Moreover, since this technology is new, PAT flow dynamics are not yet well understood. Therefore, this study intends to numerically investigate the mixed-flow PAT’s pump mode flow dynamics for five operating conditions from optimum (1 Q<sub<BEP</sub<) to deep part-load (0.41 Q<sub<BEP</sub<) conditions. Moreover, the effect of runner blade angle on them is investigated, considering three angles, namely −2°, 0°, and 2°. PAT flow stability was found to deteriorate as the flow decreased, where associated pressure pulsation level worsened at different flow zones. In addition, the blade angle increase led to correspondingly increasing flow unsteadiness and pressure pulsation levels, where the pulsation frequencies from rotor-stator interactions were dominant for most flow zones. 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