Volume 9,
Edição 3&4, 2002,
pp. 117-121
DOI: 10.1615/JEnhHeatTransf.v9.i3-4.20
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W. Wu
Dept. of Thermal Engineering, University of Science and Technology Beijing, Beijing 1000083, CHINA
J. H. Du
Department of Thermal Engineering, Tsinghua University, Beijing, China
B. Ma
Department of Thermal Engineering, Tsinghua University, Beijing, China
Bu-Xuan Wang
Laboratory of Phase Change and Interfacial Transport Phenomena, Department of Thermal Engineering, Tsinghua University, Beijing 100084, China
Professor Wang has been an influential educator of thermal engineering in China. He established firstly a new speciality â Engineering Thermophysics in Tsinghua University in 1957. Professor Wang was a founding member of the Chinese Society of Engineering Thermophysics. He was appointed by the State Education Commission as Chairman of the Committee for Basic Engineering Teaching on Thermodynamics & Heat Transfer in Colleges and Universities during 1979-1995, and as a leading member of the evolving section Power Engineering & Engineering Thermophysics of National Degree Committee from 1981-1997.
Professor Wang's research, a number of projects he undertook were prompted by national needs. For example, from 1963 to 1966, he led a research team seeking to accelerate the synthesis of ammonia in a large Sichuan chemical plant by enhancing heat transfer through a resign of compact heat exchanger within a tower so as to provide more effective catalystic volume and to obtain a more favorable temperature distribution in the piled catalyst. The efforts resulted in a doubling of the daily production, which is listed in the State Conncil's Government Bulletin of 1966 as one of the hundred important achievements.
RESUMO
Wall effects for fluid flow and heat transfer in a glass bead-packed channel between two parallel grooved plates were investigated. The experimental results demonstrated that grooves on the heated surface changed the contact between the packed beads and the wall. The grooves on the heated surface lowered the flow resistance and enhanced the heat transfer coefficient 2∼3 times that of flat plates. The results suggest that a proper combination of packed beads and grooves can lead to the optimum heat transfer for a specific configuration.