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Experimental study on the performance of recooling cycle of hydrocarbon fueled scramjet engine

机译：碳氢燃料超燃发动机再冷却循环性能的实验研究

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摘要

Recooling cycle (RCC) has been newly proposed as a new cooling method to increase fuel heat sink (cooling capacity). A testing system is established and an experimental study is conducted on the operating characteristics and performance of RCC with different flow, heat transfer and cracking conditions. Experimental results indicate that the utilization of fuel heat sink is restricted by the allowable material temperature of heated tube; RCC provides another chance for the continued use of fuel chemical heat sink and the repeated use of fuel physical heat sink in the secondary cooling by reducing the fuel temperature by doing work to turbine, and the total heat sink of fuel can be increased to 0.7 MJ/kg when n-Decane is used as the fuel. RCC can also improve the "olefin/paraffin ratio" of cracking reaction, which facilitates the improvement of the combustion performance of fuel.
机译：作为提高燃料散热器（冷却能力）的新的冷却方法，新提出了再冷却循环（RCC）。建立了不同流动，传热和裂化条件下RCC的工作特性和性能的测试系统，并进行了实验研究。实验结果表明，燃料散热器的使用受到加热管允许材料温度的限制。 RCC通过对涡轮做功降低燃料温度，为二次冷却中的燃料化学散热器的继续使用和燃料物理散热器的重复使用提供了又一次机会，并且燃料的总散热器可以增加到0.7 MJ / kg（使用正癸烷作为燃料时）。 RCC还可以改善裂化反应的“烯烃/链烷烃比”，这有助于改善燃料的燃烧性能。

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  • 来源
    《Fuel》 |2013年第6期|334-340|共7页
  • 作者

    Jiang Qin; Silong Zhang; Wen Bao; Zhenjian Jia; Bin Yu; Weixing Zhou;

  • 作者单位

    School of Energy Science and Engineering, Harbin Institute of Technology, Harbin 150001, PR China;

    School of Energy Science and Engineering, Harbin Institute of Technology, Harbin 150001, PR China;

    School of Energy Science and Engineering, Harbin Institute of Technology, Harbin 150001, PR China;

    School of Energy Science and Engineering, Harbin Institute of Technology, Harbin 150001, PR China;

    School of Energy Science and Engineering, Harbin Institute of Technology, Harbin 150001, PR China;

    School of Energy Science and Engineering, Harbin Institute of Technology, Harbin 150001, PR China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    recooling cycle; heat sink; hydrocarbon fuel; scramjet; cracking;

    机译：再冷却周期散热器;碳氢燃料超燃冲压发动机开裂;

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