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RESEARCH ON SYSTEM IDENTIFICATION OF WALL SURFACE HEAT TRANSFER PROCESSES
Authors:Ling Zhang  Jian Sun  Youming Chen  Guangfa Tang
Institution:Rohsenow Heat and Mass Transfer Laboratory, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA
Abstract:A new experimental procedure is proposed based on an instrumental variable method 1] for analyzing wall surface heat transfer processes and deducing wall surface heat transfer coefficients under actual conditions. Tests were carried out under a wide range of conditions, and the heat transfer coefficient was found to vary from 8 to 26 W/m 2 ” K while wind speed ranged from 0 to 7.5 m/s, and correlations were obtained in terms of wind speed. In addition, the experiments indicated that wind direction does not have a significant effect on the heat transfer coefficient of wall surfaces.
Keywords:
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