超临界压力下碳氢燃料裂解与流动传热模拟的快速算法

doi:10.7527/S1000-6893.2017.21650

Abstract

Abstract: To predict efficiently the heat transfer characteristics of the hydrocarbon fuel flowing inside the engine cooling channel with endothermic pyrolysis, a fast algorithm based on an n-decane thermal cracking mechanism is established for simulating the endothermic pyrolysis and supercritical-pressure heat transfer phenomena of n-decane. The three-dimensional look-up table method is adopted to acquire the thermo-physical properties of cracked mixtures. Meanwhile, the species transport equations are simplified, and finally only one species transport equation needs to be solved. The computational efficiency and accuracy of the fast algorithm are examined by comparing with the available experimental and numerical results. Results indicate that the computation efficiency is improved by about 20 times, with the computation accuracy being equivalent to that of the original algorithm, which solves fully species transport equations. Simulation of the endothermic pyrolysis and heat transfer processes of n-decane flowing inside a three-dimensional rectangular cooling channel under supercritical pressures demonstrates the accuracy of the proposed algorithm and its applicability in practice.

Key words: supercritical fluid, pyrolysis, regenerative cooling, n-decane, fast algorithm

CLC Number:

V511⁺.1

HUANG Shizhang, RUAN Bo, GAO Xiaowei, LIU Huayu. A fast algorithm for simulating hydrocarbon fuel heat transfer with endothermic pyrolysis under supercritical pressures[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2018, 39(4): 121650-121650.

References

[1] POWELL O A, EDWARDS J T, NORRIS R B, et al. Development of hydrocarbon-fueled scramjet engines:The hypersonic technology (HyTech) program[J]. Journal of Propulsion and Power, 2001, 17(6):1170-1176.
[2] BAO W, LI X, QIN J, et al. Efficient utilization of heat sink of hydrocarbon fuel for regeneratively cooled scramjet[J]. Applied Thermal Engineering, 2012, 33(1):208-218.
[3] EDWARDS T. Cracking and deposition behavior of supercritical hydrocarbon aviation fuels[J]. Combustion Science & Technology, 2006, 178(1-3):307-334.
[4] BAO W, ZHANG S, QIN J, et al. Numerical analysis of flowing cracked hydrocarbon fuel inside cooling channels in view of thermal management[J]. Energy, 2014, 67(4):149-161.
[5] HUANG H, SOBEL D R, SPADACCINI L J. Endothermic heat-sink of hydrocarbon fuels for scramjet cooling:AIAA-2002-3871[R]. Reston, VA:AIAA, 2002.
[6] 俞刚, 范学军. 超声速燃烧与高超声速推进[J]. 力学进展, 2013, 43(5):449-471. YU G, FAN X J. Supersonic combustion and hypersonic propulsion[J]. Advances in Mechanics, 2013, 43(5):449-471(in Chinese).
[7] ZHONG Z, WANG Z, SUN M. Effects of fuel cracking on combustion characteristics of a supersonic model combustor[J]. Acta Astronautica, 2015, 110:1-8.
[8] FAN X, YU G, LI J, et al. Combustion and ignition of thermally cracked kerosene in supersonic model combustors[J]. Journal of Propulsion and Power, 2007, 23(2):317-324.
[9] ZHONG F Q, FAN X J, YU G, et al. Thermal cracking and heat sink capacity of aviation kerosene under super critical conditions[J]. Journal of Thermophysics & Heat Transfer, 2011, 25(6):1226-1232.
[10] ZHONG F Q, FAN X J, YU G, et al. Thermal cracking of aviation kerosene for scramjet applications[J]. Science in China Series E:Technological Sciences, 2009, 52(9):2644-2652.
[11] JIANG R, LIU G, ZHANG X. Thermal cracking of hydrocarbon aviation fuels in regenerative cooling microchannels[J]. Energy & Fuels, 2013, 27(5):2563-2577.
[12] STEWART J, BREZINSKY K, GLASSMAN I. Supercritical pyrolysis of decalin, tetralin, and n-decane at 700-800K:Product distribution and reaction mechanism[J]. Combustion Science & Technology, 1998, 136(1-6):373-390.
[13] WARD T, ZABARNICK S, ERVIN J, et al. Simulations of flowing mildly-cracked normal alkanes incorporating proportional product distributions[J]. Journal of Propulsion and Power, 2004, 20(3):394-402.
[14] WARD T A, ERVIN J S, ZABARNICK S, et al. Pressure effects on flowing mildly-cracked n-decane[J]. Journal of Propulsion and Power, 2005, 21(2):344-355.
[15] ZHU Y, LIU B, JIANG P. Experimental and numerical investigations on n-decane thermal cracking at supercritical pressures in a vertical tube[J]. Energy & Fuels, 2013, 28(1):466-474.
[16] XU K, MENG H. Analyses of surrogate models for calculating thermophysical properties of aviation kerosene RP-3 at supercritical pressures[J]. Science in China Series E:Technological Sciences, 2015, 58(3):510-518.
[17] 阮波,孟华. 碳氢燃料裂解吸热反应及超临界传热现象数值模型的构建与验证[J]. 航空学报, 2011, 32(12):2220-2226. RUAN B, MENG H. Numerical model development and validation for hydrocarbon fuel supercritical heat transfer with endothermic pyrolysis[J]. Acta Aeronautica et Astronautica Sinica, 2011, 32(12):2220-2226(in Chinese).
[18] ZHANG S, FENG Y, JIANG Y, et al. Thermal behavior in the cracking reaction zone of scramjet cooling channels at different channel aspect ratios[J]. Acta Astronautica, 2016, 127:41-56.
[19] FENG Y, JIANG Y, LI X, et al. Numerical study on the influences of heat and mass transfers on the pyrolysis of hydrocarbon fuel in mini-channel[J]. Applied Thermal Engineering, 2017, 119:650-658.
[20] 刘志琦. 超燃冲压发动机主动冷却通道内的超临界流动与传热过程数值模拟[D]. 长沙:国防科学技术大学, 2015:18-26. LIU Z Q. Numerical simulation of flow and heat transfer in cooling channels of active cooled scramjet engines[D]. Changsha:National University of Defense Technology, 2015:18-26(in Chinese).
[21] 程泽源, 朱剑琴. 低裂解度正癸烷物性快速计算方法[J]. 推进技术, 2016, 37(8):1586-1593. CHENG Z Y, ZHU J Q. Fast calculation method on physical properties in mild cracking of decane[J]. Journal of Propulsion Technology, 2016, 37(8):1586-1593(in Chinese).
[22] RUAN B, MENG H, YANG V. Simplification of pyrolytic reaction mechanism and turbulent heat transfer of n-decane at supercritical pressures[J]. International Journal of Heat and Mass Transfer, 2014, 69(2):455-463.
[23] ELY J F, HANLEY H. Prediction of transport properties:1. Viscosity of fluids and mixtures[J]. Industrial & Engineering Chemistry Fundamentals, 1981, 20(4):323-332.
[24] ELY J F, HANLEY H. Prediction of transport properties:2. Thermal conductivity of pure fluids and mixtures[J]. Industrial & Engineering Chemistry Fundamentals, 1983, 22(1):90-97.
[25] MENG H, YANG V. A unified treatment of general fluid thermodynamics and its application to a preconditioning scheme[J]. Journal of Computational Physics, 2003, 189(1):277-304.
[26] MENG H, HSIAO G C, YANG V, et al. Transport and dynamics of liquid oxygen droplets in supercritical hydrogen streams[J]. Journal of Fluid Mechanics, 2005, 527:115-139.
[27] 阮波. 超临界压力下正癸烷裂解吸热和对流传热现象的数值模拟研究[D]. 杭州:浙江大学, 2013:40-61. RUAN B. Numerical studies of convective heat transfer of n-decane with endothermic pyrolytic reaction at supercritical pressures[D]. Hangzhou:Zhejiang University, 2013:40-61(in Chinese).
[28] STEWART J F. Supercritical pyrolysis of the endothermic fuels methylcyclohexane, decalin, and tetralin[J]. Dissertation Abstracts International, 1999, 60(9):4852-5119.

A fast algorithm for simulating hydrocarbon fuel heat transfer with endothermic pyrolysis under supercritical pressures

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