Determination of the thermal time constant of the reinforced concrete building component
As a result of changes in the boundary conditions, a heat exchange in the building envelope is not always in a steady state. Heat fluxes penetrating through the wall may be several times greater than the steady state. Thus, the building can have a much higher demand for energy and requires the use o...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Stefan Owczarek [verfasserIn] Mariusz Owczarek [verfasserIn] |
|---|
| Format: |
E-Artikel |
|---|---|
| Sprache: |
Englisch ; Polnisch |
| Erschienen: |
2017 |
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| Schlagwörter: |
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| Übergeordnetes Werk: |
In: Biuletyn Wojskowej Akademii Technicznej - Military University of Technology, Warsaw, 2016, 66(2017), 2, Seite 79-90 |
|---|---|
| Übergeordnetes Werk: |
volume:66 ; year:2017 ; number:2 ; pages:79-90 |
| Links: |
Link aufrufen |
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| DOI / URN: |
10.5604/01.3001.0010.1891 |
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DOAJ077038681 |
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| 520 | |a As a result of changes in the boundary conditions, a heat exchange in the building envelope is not always in a steady state. Heat fluxes penetrating through the wall may be several times greater than the steady state. Thus, the building can have a much higher demand for energy and requires the use of more powerful heater than it results from the standard calculation. This article dealt with estimating the length of the transient state after changing the boundary conditions. The protective celling plate of dimensions 35 m × 1 m and a thickness of 0.5 m has been analysed. The plate, on the one hand, is cooled in air at a temperature of 8.6°C, on the other hand is inside the shelter at 20°C. A period of cooling, based on the theoretical and numerical calculations, was obtained, then the differences were discussed and the conclusions drawn. Keywords: building, building physics, heat flows in building envelopes | ||
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As a result of changes in the boundary conditions, a heat exchange in the building envelope is not always in a steady state. Heat fluxes penetrating through the wall may be several times greater than the steady state. Thus, the building can have a much higher demand for energy and requires the use of more powerful heater than it results from the standard calculation. This article dealt with estimating the length of the transient state after changing the boundary conditions. The protective celling plate of dimensions 35 m × 1 m and a thickness of 0.5 m has been analysed. The plate, on the one hand, is cooled in air at a temperature of 8.6°C, on the other hand is inside the shelter at 20°C. A period of cooling, based on the theoretical and numerical calculations, was obtained, then the differences were discussed and the conclusions drawn. Keywords: building, building physics, heat flows in building envelopes |
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As a result of changes in the boundary conditions, a heat exchange in the building envelope is not always in a steady state. Heat fluxes penetrating through the wall may be several times greater than the steady state. Thus, the building can have a much higher demand for energy and requires the use of more powerful heater than it results from the standard calculation. This article dealt with estimating the length of the transient state after changing the boundary conditions. The protective celling plate of dimensions 35 m × 1 m and a thickness of 0.5 m has been analysed. The plate, on the one hand, is cooled in air at a temperature of 8.6°C, on the other hand is inside the shelter at 20°C. A period of cooling, based on the theoretical and numerical calculations, was obtained, then the differences were discussed and the conclusions drawn. Keywords: building, building physics, heat flows in building envelopes |
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As a result of changes in the boundary conditions, a heat exchange in the building envelope is not always in a steady state. Heat fluxes penetrating through the wall may be several times greater than the steady state. Thus, the building can have a much higher demand for energy and requires the use of more powerful heater than it results from the standard calculation. This article dealt with estimating the length of the transient state after changing the boundary conditions. The protective celling plate of dimensions 35 m × 1 m and a thickness of 0.5 m has been analysed. The plate, on the one hand, is cooled in air at a temperature of 8.6°C, on the other hand is inside the shelter at 20°C. A period of cooling, based on the theoretical and numerical calculations, was obtained, then the differences were discussed and the conclusions drawn. Keywords: building, building physics, heat flows in building envelopes |
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<?xml version="1.0" encoding="UTF-8"?><collection xmlns="http://www.loc.gov/MARC21/slim"><record><leader>01000caa a22002652 4500</leader><controlfield tag="001">DOAJ077038681</controlfield><controlfield tag="003">DE-627</controlfield><controlfield tag="005">20230309150159.0</controlfield><controlfield tag="007">cr uuu---uuuuu</controlfield><controlfield tag="008">230228s2017 xx |||||o 00| ||eng c</controlfield><datafield tag="024" ind1="7" ind2=" "><subfield code="a">10.5604/01.3001.0010.1891</subfield><subfield code="2">doi</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(DE-627)DOAJ077038681</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(DE-599)DOAJ5037ad1892ae4010b1f45fae07cbfb6c</subfield></datafield><datafield tag="040" ind1=" " ind2=" "><subfield code="a">DE-627</subfield><subfield code="b">ger</subfield><subfield code="c">DE-627</subfield><subfield code="e">rakwb</subfield></datafield><datafield tag="041" ind1=" " ind2=" "><subfield code="a">eng</subfield><subfield code="a">pol</subfield></datafield><datafield tag="100" ind1="0" ind2=" "><subfield code="a">Stefan Owczarek</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="245" ind1="1" ind2="0"><subfield code="a">Determination of the thermal time constant of the reinforced concrete building component</subfield></datafield><datafield tag="264" ind1=" " ind2="1"><subfield code="c">2017</subfield></datafield><datafield tag="336" ind1=" " ind2=" "><subfield code="a">Text</subfield><subfield code="b">txt</subfield><subfield code="2">rdacontent</subfield></datafield><datafield tag="337" ind1=" " ind2=" "><subfield code="a">Computermedien</subfield><subfield code="b">c</subfield><subfield code="2">rdamedia</subfield></datafield><datafield tag="338" ind1=" " ind2=" "><subfield code="a">Online-Ressource</subfield><subfield code="b">cr</subfield><subfield code="2">rdacarrier</subfield></datafield><datafield tag="520" ind1=" " ind2=" "><subfield code="a">As a result of changes in the boundary conditions, a heat exchange in the building envelope is not always in a steady state. Heat fluxes penetrating through the wall may be several times greater than the steady state. Thus, the building can have a much higher demand for energy and requires the use of more powerful heater than it results from the standard calculation. This article dealt with estimating the length of the transient state after changing the boundary conditions. The protective celling plate of dimensions 35 m × 1 m and a thickness of 0.5 m has been analysed. The plate, on the one hand, is cooled in air at a temperature of 8.6°C, on the other hand is inside the shelter at 20°C. A period of cooling, based on the theoretical and numerical calculations, was obtained, then the differences were discussed and the conclusions drawn. 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