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刘天池,范育新,赵世龙.高温条件下RP-3航空煤油的结焦特性[J].航空动力学报,2020,(2):348~357
高温条件下RP-3航空煤油的结焦特性
Deposition characteristics of RP-3 aviation kerosene under high temperature conditions
投稿时间:2019-09-17  
DOI:10.13224/j.cnki.jasp.2020.02.014
中文关键词:  航空煤油  油温  油管壁温  燃油流速  结焦速率  结焦量
英文关键词:aviation kerosene  fuel temperature  tube wall temperature  fuel flow velocity  deposition rate  deposition amount
基金项目:
作者单位
刘天池 (College of Energy and Power Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China) 
范育新 College of Energy and Power Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China 
赵世龙 College of Energy and Power Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China 
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中文摘要:
      为了解和掌握航空煤油在高温条件下的结焦性能,通过试验分别研究了RP-3航空煤油在静止状态下的结焦边界温度与结焦特性,以及不同燃油进口条件、壁温对结焦特性的影响。试验结果表明:燃油静止时其结焦边界温度介于437~450 K之间,且随着试验时间的增加,结焦速率呈下降趋势。增加流速,降低进口油温和壁温均可有效降低结焦的生成,且降低进口油温的影响最大。从时间尺度上来看,结焦在前期的累积较慢,但在形成一定量的结焦后结焦速率会明显提升,以400 K进口油温、800 K壁温、05 m/s燃油流速工况为例,8 h和12 h试验件的结焦量分别达到4 h试验件的约15倍和7倍。
英文摘要:
      In order to understand the aviation kerosene’s deposition characteristics under high temperature conditions, the RP-3 aviation kerosene’s deposition boundary temperature and characteristics under static state, the influences of different fuel inlet conditions and wall temperatures were studied by test. The results indicated that the deposition boundary temperature under static state was between 437-450 K, and the deposition rate decreased with the increase of test time. Increasing the flow velocity, and decreasing the fuel inlet temperature and the wall temperature can effectively reduce the deposition amount, and decreasing the fuel inlet temperature had the most effective impact. From the perspective of time scale, deposition accumulated slowly in the early stage, but increased significantly when a certain deposition amount had been formed. Taking the 400 K fuel inlet temperature, 800 K wall temperature and 05 m/s flow velocity test as example, the deposition amount of 8 h and 12 h test was about 15 times and 7 times that of the 4 h test, respectively.
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