The Radiant Time Series Cooling Load Calculation Procedure

Abstract

The time method is a new method for performing design cooling load calculations, derived from the heat balance method. It effectively replaces all other simplified (non-heat-balance) methods such as the cool#zg load temperature difference~solar cooling load~cooling load factor method (CLTD/SCL/CLF), the total equivalent temperature difference~time averaging method (TETD/TA), and the transfer[unction method (TFM). The time method relies on a 24-term response factor to compute conductive heat gain, and it relies on a 24-term radiant time series to convert instantaneous heat gain to cooling loads. This paper describes the time method and the generation of the response factors and the time coefficients and gives a brief comparison to the heat balance method.