Abstract
The purpose of this study is to clarify the relation of thermal exchanging characteristic and COP in split type air-conditioner, through survey and CFD. And in case that outlet-air short-circuited, we studied how COP changed. So, We investigated the COP of air-conditioner by gathered data through survey in the office and performed CFD analysis. And then, we calculated COP expected for improvement from thermal exchanging characteristic. As a result, COP of split type air-conditioner is 3.14, in case of setting up room's temperature with the open air (32℃) and the humidity (68%). Second, through CFD, it was grasped how air fluid situation constitutes. Third, in case of changing an angle of outlet-air from air-conditioner (30°, 45°, 60°), when COP of 45° setted a standard, it was favorable by order of 45°30°, 60° from a short-circuited point of view
