期刊
NUMERICAL HEAT TRANSFER PART A-APPLICATIONS
卷 68, 期 7, 页码 737-760出版社
TAYLOR & FRANCIS INC
DOI: 10.1080/10407782.2015.1012855
关键词
-
资金
- National Key Basic Research Program of China (973 Program) [2013CB228304]
In this paper, fluid flow and heat transfer over a three-dimensional staggered circular-pin-finned tube bundle heat exchanger surface have been numerically investigated. The effects of six geometric parameters and pin-fin arrangement in the flow direction on the thermo-hydraulic performance are investigated in details by adopting the performance evaluation plot of enhanced heat transfer oriented for energy-saving. The results show that the pin-fin diameter d, pin-fin length H, and pin-fin number around the tube N have positive effects on improving thermo-hydraulic performance, but the transverse tube pitch S-1 and the fin axial pitch S-1,S-pf have negative effects, whereas the longitudinal tube pitch S-2 and the fin arrangement in flow direction (in-line or staggered) have little effects.
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