Currently, we are developing the air-conditioning guidance system （AC-Guide） to optimize the use of AC in the room using the indoor/outdoor discomfort index. Air conditioner is utilized to construct a thermally comfortable environment for occupants in indoor rooms. For the proper guidance, accurate estimations of indoor environmental changes due to on/off of air conditioners and opening/closing of windows/doors is very important.
In this paper, we study heat transfer simulations using OpenFOAM to estimate indoor environmental changes for the air-conditioning guidance system. We compare the simulation results with measured data in a room at the 3rd floor of Okayama Engineering #2 and confirm the sufficient estimation accuracy.