U型管内超临界压力航空煤油压降特性

黄文; 邓宏武; 徐国强; 朱锟

U型管内超临界压力航空煤油压降特性

北京航空航天大学能源与动力工程学院,北京 100191

基金项目: 国家自然科学基金(50676005)

计量
- 文章访问数: 1806
- HTML浏览量: 171
- PDF量: 18
- 被引次数: 0
出版历程
- 收稿日期: 2010-03-11
- 修回日期: 2010-05-19
- 刊出日期: 2011-03-28

Pressure drop characteristics of supercritical aviation kerosene in U-turn tube

School of Jet Propulsion, Beijing University Aeronautics and Astronautics,Beijing 100191,China

摘要

摘要: 研究了超临界状态下航空煤油RP-3在U型管内的压降特性,分析了温度和压力对于流动压降的影响规律.实验结果表明:当煤油的出口温度低于临界温度时,压降随压力的增大而增大,随温度的升高变化很小;当煤油的出口温度大于临界温度时,压降随压力的升高而减小,随温度的升高而增大.在拟临界点附近,压降随温度的变化斜率突然增大.另外,基于实验结果,提出了一种用压力和温度修正的摩擦阻力系数关联式,用于预测超临界压力状态下煤油在U型管中的平均摩擦压降.
- 超临界压力 /
- 航空煤油 /
- 压降 /
- U型管 /
- 流动阻力
Abstract: The flowing characteristics of aviation kerosene at supercritical pressure flowing through a U-turn tube were investigated.The pressure and temperature were analyzed to evaluate their effectiveness on the pressure drop.The results indicate that,when the temperature of the fuel at the outlet is below the critical temperature,the pressure drop does not change with the increase of the temperature of the fuel,but increases with the rising pressure;when it is above the critical temperature,the pressure drop increases with the increasing temperature,and decreases with the increasing of pressure.The slope of pressure drop with temperature increases near the pseudo-critical temperature.Furthermore,a relation-formal was proposed to predict the pressure drop when hydrocarbon fuel flowed through a U-turn tube at supercritical pressure.
- supercritical pressure /
- aviation kerosene /
- pressure drop /
- U-turn tube /

HTML

参考文献(13)

[1]	范启明,米镇涛,于燕,等.高超音速推进用吸热型烃类燃料的热稳定性研究Ⅰ:热氧化与热裂解沉积[J].燃料化学学报,2002,30(1):78-82. FAN Qiming,MI Zhentao,YU Yan,et al.Study on thermal stability of endothermic hydrocarbon fuels for hypersonic propulsion Ⅰ:Thermal oxidation & pyrolitic deposit[J].Journal of Fuel Chemistry and Technology,2002,30(1):78-82.(in Chinese)
[2]	杨亮,丁国良,黄冬平.超临界二氧化碳流动与换热研究进展[J].制冷学报,2003(2):51-56. YANG Liang,DING Guoliang,HUANG Dongping.Review of flow and transfer of supercritical carbon dioxide[J].Journal of Refrigeration,2003(2):51-56.(in Chinese)
[3]	董其伍,赵松伟,刘敏珊.超临界二氧化碳管内流动及换热特性分析研究[J].制冷与空调,2008,22(1):1-5. DONG Qiwu,ZHAO Songwei,LIU Minshan.The analysis study of supercritical carbon dioxide flow and transfer characteristics in tube[J].Refrigeration and Air Conditioning,2008,22(1):1-5.(in Chinese)
[4]	淮秀兰,Shigeru K.微通道内超临界二氧化碳的压降与传热特性[J].工程热物理学报,2004,25(5):843-845. HUAI Xiulan,Shigeru Koyama.Heat transfer and pressure drop of supercritical carbon dioxide in multi-port channels[J].Journal of Engineering Thermophysics,2004,25(5):843-845.(in Chinese)
[5]	Thurston R S.Pressure oscillations induced by forced convection heat transfer to two phase and supercritical hydrogen:preliminary experiments .Los Alamos Scientific Laboratory Report LAMS3070 (also N64-21055),1964.
[6]	Hines W S,Wolf H.Pressure oscillations associated with Heat transfer to hydrocarbon fluids at supercritical pressures and temperatures [J].ARS Journal,1962,3:361-366.
[7]	Edwards T.USAF supercritical hydrocarbon fuels interests .AIAA 93-0807,1993.
[8]	Linne D L,Meyer M L,Braun D C.Investigation of instabilities and heat transfer phenomena in supercritical fuels at high heat flux and temperatures .AIAA-2000-3128,2000.
[9]	Pettersen J,Rieberer R,Leister A.Heat transfer and pressure drop characteristics of supercritical carbon dioxide in microchannel tubes under cooling //Proceedings of 4th IIR-Gustav Lorevtzen Conference on Natural Working Fluids.West Lafayette,IN: ,2000:99-106.
[10]	Parlatan Y,Tordreas N E,Driscoll M J.Buoyancy and property variation effects in turbulent mixed convection of water in vertical tubes[J].Heat Transfer,1996,118(2):381-387.
[11]	Pioro I L,Duffey R B,Dumouchel T J.Hydraulic resistance of fluids flowing in channels at supercritical pressures (survey)[J].Nuclear Engineering and Design,2004,231(2):187-197.
[12]	Mitra B,Garimella S.Supercritical heat transfer and pressure drop in refrigerant R410A //Proceeding of HT2003 ASME Summer Heat Transfer Conference.Las Vegas,Nevada,USA:Heat Transfer Division,2003:21-23.
[13]	Petukhov B S.Heat transfer and friction in turbulent pipe flow with variable physical properties [J].Adv. Heat Transf,1970,6:504-564.