Numerical Investigation Effect of Velocity Inlet on Central Air Conditioning

Abstract

Air conditioning systems have become very important at the end of this decade, due to global warming. Comfortable room conditions require a good air conditioning system. This paper aims to investigate the effect of the velocity inlet on central air conditioning. The boundary condition design was made using computer-aided design software. The temperature distribution was investigated numerically. The use of a central air conditioner with 12 inlet diffuser at a velocity of 0.7 m/s produces an even temperature distribution. The condition of the effective draft temperature produced is between -3 to 2 by 75% at an inlet velocity of 0.7 m/s. Meanwhile, at the inlet speed of more than 1m/s, the room temperature is met below 15℃. Thus, even temperature distribution and a suitable effective draft temperature can save energy consumption.