Analytical approach to transient heat conduction in cooling load calculations

The paper briefly reviews four existing analytical methods for the solution of the Fourier’s equation in cooling load calculations. The performance of nine different procedures (the four methods and their modifications) is presented on an example of heat transmission through a heavy wall under realistic external conditions. For the current case it was proved that the admittance method gives results similar to those obtained by the periodic response factors (PRF) approach, which is normally considered to be more advanced. Possible errors were found in the previously published coefficients for one of the PRF modifications