A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Useful solar gains through a south-facing window in the U.K. climate
Abstract The back-up heat needed to maintain a mean design temperature Td in a room depends on the one hand upon the loss of heat by ventilation and through the opaque part of the fabric, and on the other hand upon the difference between conducted loss and solar gain through windows. This second term depends on a quantity Tsai (a form of sol-air temperature applicable to an enclosure interior), which includes the ambient temperature Tao, and the solar gain and conducted losses for the glazing concerned. If Tsai is less than Td, the glazing is disadvantageous as a contributor to the total heat needed. Tables are presented of the month-by-month joint distribution of daily mean values of Tao and the total irradiance on a near south-facing wall for a site on the north Wirral (53.4°N), based on 50 years' records. From these and assumed windows characteristics, cumulative functions of Tao and Tsai are calculated. Estimates of the back-up heat needed to maintain Td are presented in graphical and numerical form to show its dependence on month, fraction of glazed area, ventilation and fabric loss, glazing characteristics and design temperature.
Useful solar gains through a south-facing window in the U.K. climate
Abstract The back-up heat needed to maintain a mean design temperature Td in a room depends on the one hand upon the loss of heat by ventilation and through the opaque part of the fabric, and on the other hand upon the difference between conducted loss and solar gain through windows. This second term depends on a quantity Tsai (a form of sol-air temperature applicable to an enclosure interior), which includes the ambient temperature Tao, and the solar gain and conducted losses for the glazing concerned. If Tsai is less than Td, the glazing is disadvantageous as a contributor to the total heat needed. Tables are presented of the month-by-month joint distribution of daily mean values of Tao and the total irradiance on a near south-facing wall for a site on the north Wirral (53.4°N), based on 50 years' records. From these and assumed windows characteristics, cumulative functions of Tao and Tsai are calculated. Estimates of the back-up heat needed to maintain Td are presented in graphical and numerical form to show its dependence on month, fraction of glazed area, ventilation and fabric loss, glazing characteristics and design temperature.
Useful solar gains through a south-facing window in the U.K. climate
Davies, M.G. (author)
Building and Environment ; 15 ; 253-272
1980-01-01
20 pages
Article (Journal)
Electronic Resource
English
Solar heat gains through three types of flat window glass
| Engineering Index Backfile | 1962
Influence of Window on Solar Gains and Daylight Level
| Trans Tech Publications | 2014
Influence of Window on Solar Gains and Daylight Level
| British Library Conference Proceedings | 2014