Abstract: An approximate analytical solution to the transient heat-conduction problem in a large composite region with an internal cylindrical source is presented. The generalized orthogonal expansion technique ...

Abstract: A nondimensional cycling model for estimating the seasonal performance of conventional air conditioners and heat pumps was developed. Starting with a simple time-constant model of the startup of ...

Abstract: An experimental investigation was conducted to study the flash boiling process and the influence of the exiting restriction (orifice) size on the mass flow during flash boiling of HCFC-22 in ...

Abstract: This paper describes a transient heat and mass transfer model of residential attics. The model is used to predict hourly ceiling heat gain/loss in residences with the purpose of estimating ...

Abstract: A nominal 10.6 kW (three ton), vertical configuration, ground-coupled heat pump was installed in Abilene, TX in Dec. 1989 and has been monitored since then using a remote data acquisition ...

Abstract: A computer program was developed and used to implement the model described on Part I of this paper. The program used an iterative process to predict temperatures and heat fluxes using linear ...