Abstract
We have modified original code for prediction of the thermal environment of rooms which was based on Computational Fluid Dynamics (CFD) and have developed Macro Model using perfect mixed model of air in rooms for prediction of room air temperature and heating/cooling loads. The characteristic of this Macro Model is consideration for reflectance of short-wave and long-wave radiation at walls and thermal comfort. It is possible to evaluate thermal environment and thermal loads of rooms. In this paper, the comparative examinations of CFD and Macro Model, and the results of prediction for heating/cooling loads of a passive solar house are reported.
