A printed circuit heat exchanger (PCHE) was selected as the recuperator of supercritical carbon dioxide (S-CO2) Brayton cycle, and the segmental design method was employed to accommodate the rapid variations of properties of S-CO2. The local heat capacity rate ratio has crucial influences on the local thermal performance of PCHE, while having small influences on the frictional entropy generation. The heat transfer entropy generation is far larger than the frictional entropy generation, and the total entropy generation mainly depends on the heat transfer entropy generation. The axial conduction worsens the thermal performance of PCHE, which becomes more and more obvious with the increase of the thickness and thermal conductivity of plate. The evaluation criteria, material, and size of plate have to be selected carefully in the design of PCHE. The present work may provide a practical guidance on the design and optimization of PCHE when S-CO2 is employed as working fluid.
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Research-Article
Performance Analysis of Printed Circuit Heat Exchanger for Supercritical Carbon Dioxide
Jiangfeng Guo,
Jiangfeng Guo
Institute of Engineering Thermophysics,
Chinese Academy of Sciences,
Beijing 100190, China;
Chinese Academy of Sciences,
Beijing 100190, China;
School of Engineering Science,
University of Chinese Academy of Sciences,
Beijing 100049, China
e-mail: gjf1200@126.com
University of Chinese Academy of Sciences,
Beijing 100049, China
e-mail: gjf1200@126.com
Search for other works by this author on:
Xiulan Huai
Xiulan Huai
Institute of Engineering Thermophysics,
Chinese Academy of Sciences,
Beijing 100190, China;
Chinese Academy of Sciences,
Beijing 100190, China;
School of Engineering Science,
University of Chinese Academy of Sciences,
Beijing 100049, China
University of Chinese Academy of Sciences,
Beijing 100049, China
Search for other works by this author on:
Jiangfeng Guo
Institute of Engineering Thermophysics,
Chinese Academy of Sciences,
Beijing 100190, China;
Chinese Academy of Sciences,
Beijing 100190, China;
School of Engineering Science,
University of Chinese Academy of Sciences,
Beijing 100049, China
e-mail: gjf1200@126.com
University of Chinese Academy of Sciences,
Beijing 100049, China
e-mail: gjf1200@126.com
Xiulan Huai
Institute of Engineering Thermophysics,
Chinese Academy of Sciences,
Beijing 100190, China;
Chinese Academy of Sciences,
Beijing 100190, China;
School of Engineering Science,
University of Chinese Academy of Sciences,
Beijing 100049, China
University of Chinese Academy of Sciences,
Beijing 100049, China
1Corresponding author.
Contributed by the Heat Transfer Division of ASME for publication in the JOURNAL OF HEAT TRANSFER. Manuscript received June 16, 2016; final manuscript received December 4, 2016; published online February 28, 2017. Assoc. Editor: Ali Khounsary.
J. Heat Transfer. Jun 2017, 139(6): 061801 (9 pages)
Published Online: February 28, 2017
Article history
Received:
June 16, 2016
Revised:
December 4, 2016
Citation
Guo, J., and Huai, X. (February 28, 2017). "Performance Analysis of Printed Circuit Heat Exchanger for Supercritical Carbon Dioxide." ASME. J. Heat Transfer. June 2017; 139(6): 061801. https://doi.org/10.1115/1.4035603
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