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Issues on the Testing of Small Cryogenic Recuperators and Experimental Studies on Perforated Plate Heat Exchangers

机译：小型低温换热器的测试问题和带孔板式换热器的实验研究

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摘要

This paper deals with various issues on testing heat exchangers at cryogenic temperatures, the test setup and experimental studies on perforated plate heat exchangers. A number of fluid flow circuits are used in practice for testing a heat exchanger at cryogenic temperatures. These circuits are reviewed and a simplified fluid circuit is proposed with justifications. Effects of the fluid inlet/outlet tubes on the performance evaluation of the heat exchanger were investigated numerically. It is found that convection heat transfer between fluid and the tube as well as conduction heat transfer through the tube walls can cause significant errors in the evaluation. These errors are considered while designing the inlet/outlet tubes for the test setup. Details of the test setup including mounting of temperature sensors, instrumentation and data acquisition are discussed. Some selected data from our experimental studies on perforated plate heat exchangers are presented. Transient study on the heat exchanger by using the setup is also demonstrated. For pressure drop studies, a separate test setup is used.
机译：本文讨论了在低温下测试热交换器的各种问题，多孔板式热交换器的测试设置和实验研究。实际上，许多流体流动回路用于在低温下测试热交换器。对这些回路进行了回顾，并提出了有理由的简化流体回路。数值研究了流体进/出口管对热交换器性能评估的影响。发现在流体和管之间的对流热传递以及通过管壁的传导热传递会导致评估中的重大误差。在设计测试装置的进/出口管时会考虑这些错误。讨论了测试设置的详细信息，包括温度传感器的安装，仪表和数据采集。介绍了一些我们从多孔板式换热器的实验研究中选择的数据。还演示了使用该装置对热交换器进行的瞬态研究。对于压降研究，使用单独的测试设置。

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  • 来源
    《Heat Transfer Engineering》 |2018年第12期|794-805|共12页
  • 作者

    Sukumaramenon Sunil Kumar; Tapas Kumar Nandi;

  • 作者单位

    Cryogenic Engineering Centre, Indian Institute of Technology, Kharagpur, India;

    Cryogenic Engineering Centre, Indian Institute of Technology, Kharagpur, India;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
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