The Radiant Time Series Cooling Load Calculation Procedure

The radiant time series 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 radiant time series method relies on a 24-term response factor series to compute conductive heat gain, and it relies on a 24-term "radiant time series" to convert instantaneous radiant heat gain to cooling loads. This paper describes the radiant time series method and the generation of the response factors and the radiant time series coefficients and gives a brief comparison to the heat balance method.

[1]  J.L.M. Hensen.  Energy simulation in building design , 1992 .

[2]  Hittle.  Calculating building heating and cooling loads using the frequency response of multilayered slabs. Doctoral thesis , 1981 .

[3]  E. F. Sowell.  Load calculations for 200,640 zones , 1988 .

[4]  B. D. Hunn,et al.  Custom weighting-factor method for thermal-load calculations in the DOE-2 computer program , 1981 .

[5]  D. G. Stephenson,et al.  Room thermal response factors , 1967 .

[6]  E. F. Sowell.  Cross-check and modification of the doe-2 program for calculation of zone weighting factors , 1988 .

[7]  E. F. Sowell.  Classification of 200,640 parametric zones for cooling load calculations , 1988 .

[8]  B. Peavy,et al.  Determination and verification of thermal response factors for thermal conduction applications , 1978 .

[9]  F. C. Mcquiston,et al.  A study to categorize walls and roofs on the basis of thermal response , 1988 .

[10]  G. P. Mitalas.  Calculation of transient heat flow through walls and roofs , 1968 .

[11]  Douglas C. Hittle,et al.  An improved root-finding procedure for use in calculating transient heat flow through multilayered slabs , 1983 .

[12]  Refrigerating.  1993 ASHRAE handbook : fundamentals , 1993 .

[13]  C. C. Cappiello,et al.  DOE-2 engineers manual (Version 2. 1A) , 1981 .

[14]  Fariborz Haghighat,et al.  A procedure for calculating thermal response factors of multi-layer walls—State space method , 1991 .

[15]  George N Walton,et al.  Thermal Analysis Research Program reference manual , 1983 .

[16]  R. Butler,et al.  The computation of heat flows through multi-layer slabs , 1984 .

[17]  John Mitchell,et al.  Transfer Functions for Efficient Calculation of Multidimensional Transient Heat Transfer , 1989 .