Abstract
In the previous paper, the relationship between position of air supply and thermal environment of house kitchens and adjacent living rooms was studied by experiments and airflow visualization tests under mild season condition. Experimental studies are necessary to examine the distributions of temperature and humidity in rooms, but they need lots of time and equipments. On the other hand, CFD (Computational fluid dynamics) simulation can predict indoor environment with less effort rather than experiments. In this research, CFD will be applied to study velocity and temperature distributions, and ventilation efficiency, when the agreement of the CFD results and the experimental ones is confirmed. In order to obtain good CFD results, thermal plume over a cooking pot and capture efficiency of an exhaust hood should be reproduced by the simulation. In this paper, CFD modeling of thermal plume is discussed firstly. It is shown that simulated result is agreed well when the measured velocity of thermal plume is given in CFD simulation. Secondly the CFD results are compared to the experimental ones in mild season and winter. It is supposed that only ventilation system works in mild season, and heating and ventilation system are operated in winter. The results show that CFD simulation is excellent method to study house kitchen ventilation as well as experiments.
