Heat extraction characteristics by coaxial heat exchanger
Heat extraction characteristics by coaxial heat exchanger
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DOI：
10.1002/htj.20083
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发表时间：
2005-11
影响因子：
1.7
通讯作者：
M. Tago;K. Morita;M. Sugawara;T. Fujita
中科院分区：
文献类型：
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作者：
M. Tago;K. Morita;M. Sugawara;T. Fujita
本研究旨在研究使用同轴热交换器从浅层地热资源中提取热量的特性。首先，通过实验室实验对同轴换热器的计算机模拟程序进行了检查和验证。在检查了本文所描述的计算机程序的有效性之后，在地层中的传热机制为热传导的情况下，对真实比例模型进行了数值模拟。本文介绍了非稳态排热特性，并讨论了管材料、内径和圆形模式对排热速率的影响。从计算机结果发现，使用同轴换热器的排热性能很大程度上取决于本研究涵盖的参数范围内的上述因素。 © 2005 Wiley periodicals, Inc. Heat Trans Asian Res，34(7): 496–513，2005；在线发表于 Wiley InterScience (www.interscience.wiley.com)。 DOI 10.1002/htj.20083
This study was performed to investigate the heat extraction characteristics from shallow geothermal resources using a coaxial heat exchanger. First, a computer simulation program for a coaxial heat exchanger was checked and verified by laboratory experiments. After inspecting the effectiveness of the computer program described herein, a numerical simulation for a real scale model was conducted under the condition that the heat transfer mechanism in the stratum was heat conduction. Unsteady heat extraction characteristics are presented herein, and the effects of the tube material, inner diameter, and circular modes on the heat extraction rate are discussed. From the computer results it was found that the heat extraction performance using a coaxial heat exchanger greatly depended on the factors mentioned above in the range of the parameters covered in this study. © 2005 Wiley Periodicals, Inc. Heat Trans Asian Res, 34(7): 496–513, 2005; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/htj.20083