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U型埋管换热器三维数值模拟和供热实验研究 被引量:16

A Three-Dimensional Numerical Model and Experimental Research for U-Tube Ground Heat Exchanger in Heating Operation
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摘要 系统地介绍了以有限控制容积的瞬态热平衡原理为基础,采用有限差分法建立的单根垂直U型埋管换热器三维瞬态传热模型,并且与整个冬季供热实验测试结果进行了对比。此外,根据原始地温的测试数据,结合相关文献,总结出重庆地区湿重型土壤的原始地温计算式,为求解传热模型,提供了必要的定解条件。 In terms of the theory of a transient energy balance on the finite controlled volume, in this paper, a transient three-dimensional heat transfer model for the simulation of a single vertical U-tube ground heat exchanger based on finite-difference methods is systematically proposed. The model is also compared with experimental results during the heating operation in winter. What's more,based on test data and domestic and foreign literature, the equations to determine the undisturbed ground temperature for wet and heavy soil in Chongqing are presented. These formulae are essential conditions to calculate the heat transfer model.
出处 《重庆建筑大学学报》 CSCD 2004年第5期90-95,共6页 Journal of Chongqing Jianzhu University
关键词 垂直U型埋管换热器 地源热泵 供热测试 传热模型 vertical U-tube ground heat exchanger GSHP heating test heat transfer model
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参考文献4

  • 1殷平.地源热泵在中国[J].现代空调,2001,(8):1-10.
  • 2[2]Rottmayer,S.P. et al. Simulation of A Single Vertical U- Tube Ground Heat Exchanger in An Infinite Medium[J]. ASHRAE Trans, 1997,103(2) :651 - 659.
  • 3刘宪英,王勇,胡鸣明,魏唐棣.地源热泵地下垂直埋管换热器的试验研究[J].重庆建筑大学学报,1999,21(5):21-26. 被引量:50
  • 4[4]Cane,R.L.D.et al.Modeling of Ground-Source Heat Pump Performance[J].ASHRAE Trans,1991,97(1):909-925.

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