TY - GEN
T1 - Development of a spectral integral method for analyzing solar effects through windows on indoor thermal comfort
AU - Wang, Nan
AU - Feng, Yanxiao
AU - Wang, Julian
N1 - Publisher Copyright:
© 2020. The Authors. Published by International Solar Energy Society
PY - 2020
Y1 - 2020
N2 - The interaction among the spectral characteristics of solar radiation, windows, and human skins may affect indoor thermal comfort. For analyzing such shortwave solar effects through windows on indoor thermal comfort, a more explicit method taking spectral features into account is indispensable. We built this new calculation methodology, called spectral integral method, upon a previous work that was mainly used to transfer the shortwave solar effect into the equivalent longwave effect to calculate indoor thermal comfort with the Predicted Mean Vote. Compared with the previous ones centered in the constant and simplified radiometric quantities, the uniqueness of this method is to provide the underlying radiometric calculation with the detailed and precise spectral contents and their variations of radiation sources, mediums, and receivers details. We adopted solar irradiance data from 8:00 to 18:00 with an interval of one hour in Denver, Colorado in a case study to verify the necessity of the spectral integral method relative to the constant method. The Predicted Mean Vote values with constant and spectral integral methods were then compared. The result of this work shows that using the spectral integral method could lead to quite different decisions of estimating indoor thermal comfort in some circumstances in terms of solar intensities and solar positions.
AB - The interaction among the spectral characteristics of solar radiation, windows, and human skins may affect indoor thermal comfort. For analyzing such shortwave solar effects through windows on indoor thermal comfort, a more explicit method taking spectral features into account is indispensable. We built this new calculation methodology, called spectral integral method, upon a previous work that was mainly used to transfer the shortwave solar effect into the equivalent longwave effect to calculate indoor thermal comfort with the Predicted Mean Vote. Compared with the previous ones centered in the constant and simplified radiometric quantities, the uniqueness of this method is to provide the underlying radiometric calculation with the detailed and precise spectral contents and their variations of radiation sources, mediums, and receivers details. We adopted solar irradiance data from 8:00 to 18:00 with an interval of one hour in Denver, Colorado in a case study to verify the necessity of the spectral integral method relative to the constant method. The Predicted Mean Vote values with constant and spectral integral methods were then compared. The result of this work shows that using the spectral integral method could lead to quite different decisions of estimating indoor thermal comfort in some circumstances in terms of solar intensities and solar positions.
KW - Building windows
KW - Indoor thermal comfort
KW - Mean radiant temperature
KW - Solar radiation
KW - Spectral integral method
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M3 - Conference contribution
AN - SCOPUS:85098514791
T3 - American Solar Energy Society National Solar Conference 2020 Proceedings
SP - 74
EP - 79
BT - American Solar Energy Society National Solar Conference 2020 Proceedings
A2 - Middleton, Paulette
A2 - Hebert, Elaine
A2 - Bortman, Dara
A2 - Foster, Robert
A2 - Cipolla, Carly
A2 - Rixham, Carly
PB - International Solar Energy Society
T2 - American Solar Energy Society National Solar Conference 2020, SOLAR 2020
Y2 - 24 June 2020 through 25 June 2020
ER -