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1.前言近年来,人们从提高传热的观点出发,正积极开展空调装置中普遍采用的百叶窗换热器的研究工作,然而对其提高传热机理的详细情况尚有许多不清楚的问题。本文所介绍的是利用全息摄影干涉法,对百叶窗周围的气流状态、温度分布等进行可视化试验,以弄清百叶窗散热片周围的传热状态,与此同时测定其放热系数。根据可视化试验和放热系数测定的结果加
1. Introduction In recent years, people from heat transfer point of view, is actively carried out in the air-conditioning unit commonly used louvre heat exchanger research, but its heat transfer mechanism to improve the details there are many unclear issues. In this paper, holographic interferometry is used to visualize the airflow conditions and temperature distribution around the blinds, so as to find out the heat transfer status around louvers and at the same time determine the exothermic coefficient. According to the visual test and the results of the determination of the exotherm plus