Experimental Approach Toward Reliable Heat Transfer Coefficient on Building Envelopes

This research delves into the empirical analysis of convective heat transfer coefficients (CHTCs) across various facade elements of buildings, utilizing a wind tunnel framework. The main aim is to analyse the effects of diverse facade configurations and materials on heat transfer amidst differing wind scenarios. Within the confines of a regulated wind tunnel setting, scale replicas of the facade elements were examined, focusing on material surface variations. Factors such as wind velocity, surface temperatures, and ambient conditions were regulated and observed to guarantee consistent and reliable outcomes. Techniques like infrared thermography alongside surface- mounted thermocouples were harnessed to record surface temperatures, facilitating the estimation of local CHTCs on assorted facade segments. The findings underscore considerable fluctuations in CHTCs and the influence of surface texture on heat transfer processes.