Experimental Investigation on the Flow and Heat Transfer Characteristics of Aviation Kerosene RP-3 During Thermal Pyrolysis Coking

doi:10.7652/xjtuxb201607002

您当前的位置：

首页 >

文章列表页 >

Experimental Investigation on the Flow and Heat Transfer Characteristics of Aviation Kerosene RP-3 During Thermal Pyrolysis Coking

更新时间：2025-07-09

- Experimental Investigation on the Flow and Heat Transfer Characteristics of Aviation Kerosene RP-3 During Thermal Pyrolysis Coking
- Vol. 50, Issue 7, Pages: 7-12(2016)
- 作者机构：
  
  西安交通大学动力工程多相流国家重点实验室,西安,710049
- 作者简介：
- 基金信息：
- DOI：10.7652/xjtuxb201607002
  CLC： TK124
- Online First：10 July 2016，
  
  Published：2016
- 稿件说明：
移动端阅览
Experimental Investigation on the Flow and Heat Transfer Characteristics of Aviation Kerosene RP-3 During Thermal Pyrolysis Coking[J]. 2016, 50(7): 7-12.
DOI：

Experimental Investigation on the Flow and Heat Transfer Characteristics of Aviation Kerosene RP-3 During Thermal Pyrolysis Coking[J]. 2016, 50(7): 7-12. DOI： 10.7652/xjtuxb201607002.

摘要

为了掌握超燃冲压发动机再生式热防护结构中结焦对传热的影响

在压力为3 MPa

质量流量为0.5 g·s

-1

热流密度分别为325、365和374 kW·m

-2

的实验条件下

对Φ3 mm×0.5 mm的高温合金钢管内航空煤油RP-3热裂解结焦过程的流动和换热特性进行了研究

并比较了结焦前后管内对流换热特性的差异。结焦过程中试验件压降出现了突然降低的现象

随着结焦反应的进行

试验件外壁面温度在逐渐降低。分析得知:结焦是不稳定的过程

伴随着结焦产物的沉积与脱落

壁面温度越高结焦速率越快; 结焦会在管道内壁形成多孔结构层

当近壁处流体温度接近或高于拟临界温度时

多孔层将会使超临界“拟沸腾”换热得到强化

然而当近壁处流体温度低于“拟沸腾”所需温度时

结焦层的热阻效应使传热发生恶化。

Abstract

The flow and heat transfer characteristics of aviation kerosene RP-3 during its pyrolysis coking in a Φ3 mm×0.5 mm high-temperature alloy steel tube were investigated to understand the influence of coking in the regenerative thermal protection structures of scramjet on heat transfer. Experiments were conducted at the pressure of 3 MPa

the mass flow rate of 0.5 g·s

-1

and the heat fluxes of 325

365 and 374 kW·m

-2

. The discrepancy of convection heat transfer characteristics in the tube before and after coking was discussed. It was found that there occurred an abrupt pressure drop in the test tube section during coking test and the external wall temperature was reduced gradually du

ring the thermal pyrolysis. These results revealed that coking was an unstable process with the coke depositing and removing. The coking rate would increase with the wall temperature. Coking might form porous surface on the inner wall of the tube

which would enhance the pseudo boiling heat transfer under the supercritical pressure condition when the temperature of the fluid near the wall was close to or higher than the pseudo critical temperature. However

when the temperature of the fluid near the wall was too low to maintain pseudo boiling

a heat transfer deterioration would occur because of the thermal resistance effect of the coking layer.

关键词

Keywords

references

HUANG H, SPADACCINI L J, SOBEL D R. Fuel-cooled thermal management for advanced aero engines [J]. Journal of Engineering for Gas Turbines & Power, 2004, 126(2): 284-293.

EDWARDS T. Cracking and deposition behavior of supercritical hydrocarbon aviation fuels [J]. Combustion Science Technology, 2007, 178(1): 307-334.

TAO Zhi, FU Yanchen, XU Guoqiang, et al. Experimental study on influences of physical factors to supercritical RP-3 surface and liquid-space thermal oxidation coking [J]. Energy Fuels, 2014, 28(9): 6098-6106.

袁立公, 邓宏武, 徐国强, 等. 超临界压力下航空煤油RP-3壁面结焦特性对换热的影响 [J]. 航空动力学报, 2013, 28(4): 832-837.

YUAN Ligong, DENG Hongwu, XU Guoqiang, et al. Effect of RP-3 coke deposition on heat transfer under supercritical pressure [J]. Journal of Aerospace Power, 2013, 28(4): 832-837.

王夕, 刘波, 祝银海, 等. 超临界压力下RP-3在细圆管内对流换热实验研究 [J]. 工程热物理学报, 2015, 36(2): 360-365.

WANG Xi, LIU Bo, ZHU Yinhai, et al. Experimental investigation on convection heat transfer of supercritical pressure RP-3 in a small pipe [J]. Journal of Engineering Thermophysics, 2015, 36(2): 360-365.

QIN Jiang, JIANG Yuguang, FENG Yu, et al. Flow rate distribution of cracked hydrocarbon fuel in parallel pipes [J]. Fuel, 2015, 161: 105-112.

吴瀚, 邓宏武, 徐国强, 等. 流动方式对航空煤油RP-3结焦的影响 [J]. 航空动力学报, 2011, 26(6): 1341-1345.

WU Han, DENG Hongwu, XU Guoqiang, et al. Effects of flow orientations on the coking characteristic of jet fuel RP-3 [J]. Journal of Aerospace Power, 2011, 26(6): 1341-1345.

金迪, 徐国强, 王英杰, 等. 不锈钢表面氧化对RP-3航空煤油热氧化结焦的影响 [J]. 航空发动机, 2010, 36(1): 34-37.

JIN Di, XU Guoqiang, WANG Yingjie, et al. Influence of stainless steel oxidizing on the thermal oxidation coking of RP-3 aviation kerosene [J]. Aeroengine, 2010, 36(1): 34-37.

琚印超, 徐国强, 郭隽, 等. 压力对航空煤油RP-3结焦的影响 [J]. 北京航空航天大学学报, 2010, 36(3): 257-260.JU Yinchao, XU Guoqiang, GUO Xie, et al. Effects of pressure on the coking characteristic of jet fuel RP-3 [J]. Journal of Beijing University of Aeronautics and Astronautics, 2010, 36(3): 257-260.

EDWARDS T. Aviation fuel development: past highlights and future prospects [C]∥AIAA International Air and Space Symposium and Exposition: The Next 100 Years. Reston, USA: AIAA, 2003: 2611.

LIU Zhaohui, BI Qincheng, GUO Yong, et al. Hydraulic and thermal effects of coke deposition during pyrolysis of hydrocarbon fuel in a mini-channel [J]. Energy Fuels, 2012, 26(6): 3672-3679.

LIU Zhaohui, PAN Hui, FENG Song, et al. Dynamic behaviors of coking process during pyrolysis of China aviation kerosene RP-3 [J]. Applied Thermal Engineering, 2015, 91: 408-416.

DENG Hongwu, ZHU Kun, XU Guoqiang, et al. Isobaric specific heat capacity measurement for kerosene RP-3 in the near-critical and supercritical regions [J]. Journal of Chemical Engineering Data, 2012, 57(2): 263-268.

TAO Zhi, FU Yanchen, XU Guoqiang, et al. Thermal and element analyses for supercritical RP-3 surface coke deposition under stable and vibration conditions [J]. Energy Fuels, 2015, 29(3): 2006-2013.

GASCOIN N, ABRAHAM G, GILLARD P. Thermal and hydraulic effects of coke deposit in hydrocarbon pyrolysis process [J]. Journal of Thermophysics and Heat Transfer, 2012, 26(1): 57-65.

XU Pengfei, LI Qiang, XUAN Yimin. Enhanced boiling heat transfer on composite porous surface [J]. International Journal of Heat and Mass Transfer, 2015, 80: 107-114.

付鑫, 任小军, 张鹏, 等. 多孔表面的液氮池沸腾实验研究 [J]. 低温与超导, 2014, 42(8): 21-25.

FU Xin, REN Xiaojun, ZHANG Peng, et al. Experimental research on pool boiling of liquid nitrogen on porous surfaces [J]. Cryogenics, 2014, 42(8): 21-25.

CIESLINSKI J T, KRASOWSKI K. Heat transfer during pool boiling of water, methanol, and r141b on porous coated horizontal tube bundles [J]. Journal of Enhanced Heat Transfer, 2013, 20(2): 165-177.

DENG Hongwu, ZHANG Chunben, XU Guoqiang, et al. Density measurements of endothermic hydrocarbon fuel at sub- and supercritical conditions [J]. Journal of Chemical Engineering Data, 2011, 56(6): 2980-2986.

Views

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Condensation Characteristic of Ethanol-Water Mixtures on External Wall of Vertical Tube

Direct Numerical Simulations on Influences of Buoyancy Forces on Turbulent Flow

Heat Transfer Coefficient and Film Cooling Effectiveness on a Full-Film Cooling Vane

Heat Transfer and Pressure Drop on Multi-Turn Connected Internal Cooling Channels

Heat Transfer Characteristics of Condensation and Flow Regime in Horizontal Rectangle Channel of Multi-Channel Cylinder Dryer

Related Author

刘继平 1

胡申华 2

乔磊 1

李杨 1

严俊杰 1

阳祥

李增耀

陶文铨

Related Institution

School of Energy and Power Engineering, Xi'an Jiaotong University

School of Power and Energy, Northwestern Polytechnical University

College of Mechanical and Electrical Engineering, Shaanxi University of Science and Technology

(School of Energy and Power Engineering, Xi'an Jiaotong University,,)

⁰