The effects of solar chimneys on thermal load mitigation of office buildings under the Japanese climate

T. Miyazaki, A. Akisawa and T. Kashiwagi

Renewable Energy, 2006, vol. 31, issue 7, 987-1010

Abstract: The study investigated the performance of a solar chimney, which is integrated into a south facade of a one-story building, as well as the effect on the heating and cooling loads of the building by using a CFD simulation and an analytical model. A C programming code was developed for the calculation of the heating and cooling loads by the heat balance method. The analytical equations of a solar chimney were incorporated into the heat balance calculation. The results showed that the fan shaft power requirement was reduced by about 50% in annual total due to the natural ventilation. It was also found that the solar chimney was beneficial to reduce the heating load by about 20% during the heating season. The annual thermal load mitigation was estimated as 12% by taking the increase of the cooling load into account.

Keywords: Solar chimneys; Natural ventilation; Passive heating; Heating and cooling loads (search for similar items in EconPapers)
Date: 2006
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Citations: View citations in EconPapers (20)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:renene:v:31:y:2006:i:7:p:987-1010

DOI: 10.1016/j.renene.2005.05.003

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