VAV AIR CONDITIONING SYSTEM SIMULATION CONTROLLING ROOM AIR TEMPERATURE, HUMIDITY AND PRESSUR

In recent years, at the building office room air-conditioning, room temperatures are controlled by the Variable Air Volume unit because of simplicity, low cost and the energy saving of the system. Air-conditioning system using VAV unit changes room air quantity, and at the same time changes room air pressure. But, the system that controls room air pressure in each room isn't taken into consideration. And, pressure control is indispensable to control the flow of the air to the large-scale space such as atrium. This paper reports the VAV method air-conditioning system simulation in which the office rooms with atrium were treated as the rooms-ducts system. The room pressure problem in VAV air-conditioner control, a problem about the air flow to atrium and these solving method are described.