Investigation of the effects of geometrical parameters on heat transfer from buried finned pipes

被引:5
|
作者
Demir, Hakan [1 ]
Koyun, Ahmet [2 ]
Atayilmaz, S. Ozgur [1 ]
Agra, Ozden [1 ]
Dalkilic, Ahmet Selim [1 ]
机构
[1] YTU, Dept Mech Engn, Heat & Thermodynam Div, TR-34349 Istanbul, Turkey
[2] Yildiz Tech Univ, Dept Mechatron Engn, TR-34349 Istanbul, Turkey
关键词
Ground heat exchanger; Ground source heat pump; Buried finned pipe; Numerical analysis; Computational fluid dynamics (CFD); Analytical solution; EXCHANGER; SYSTEMS; MODELS;
D O I
10.1007/s12206-013-0637-2
中图分类号
TH [机械、仪表工业];
学科分类号
0802 ;
摘要
Heat transfer from finned pipes buried in the soil has been investigated using experimental, analytical and numerical techniques. The experimental setup consists of a ground source heat pump system and two separate ground heat exchangers. Constant surface temperature approach based on Carslaw and Jaeger's theory study was used for calculating the heat transfer from the pipes analytically. The problem was modeled and solved using a CFD program numerically. Effects of the fin number, fin length and simulation time on the heat transfer rate have been investigated and compared with bare tube. A modified analytical formula was also proposed for finned pipes in this study.
引用
收藏
页码:2497 / 2506
页数:10
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