Experimental investigation on flow and heat transfer instabilities of RP-3 aviation kerosene in a vertical miniature tube under supercritical pressures

Li, Sufen; Wang, Yuning; Dong, Ming; Pu, Hang; Jiao, Si; Shang, Yan

doi:10.1016/j.applthermaleng.2018.11.002

Cited by 27 publications

(7 citation statements)

References 27 publications

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“…When hydrocarbon fuel is heated to above its critical point and pyrolyzed into multiple components in a regenerative cooling system, its thermophysical properties change drastically, which subsequently influences the overall flow and heat transfer characteristics inside the cooling channels [11,[13][14][15][16]. Furthermore, the injection and atomization characteristics of the supercritical and/or cracked fuel become different from those of the original liquid fuel, and this greatly affects its mixing, ignition, and combustion performance when it is supplied to the downstream supersonic combustor [17][18][19].…”

Section: Introductionmentioning

confidence: 99%

Comparison and Evaluation of Transport Property Prediction Performance of Supercritical Hydrocarbon Aviation Fuels and Their Pyrolyzed Products via Endothermic Reactions

Hwang

Lee

2023

Energies

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This study presents results of predicting the transport properties of hydrocarbon aviation fuels and their decomposed products after pyrolysis. Twenty-seven pure substances and two types of mixture, including both low and high molecular weight hydrocarbons as well as hydrogen, are considered. The specified temperature and pressure ranges, 300 to 1000 K and 0.1 to 5.0 MPa, respectively, correspond to representative operating conditions of a hydrocarbon aviation fuel that circulates as a coolant in the regenerative cooling system of a hypersonic vehicle and include the critical temperatures and pressures of most of the hydrocarbon fuels of interest. Four methods are adopted for the prediction of viscosity and thermal conductivity; the Brule-Starling method is used to predict viscosity, the Modified Propane TRAPP method for thermal conductivity, and the Methane TRAPP, Propane TRAPP, and Chung et al. methods are used for both transport properties. A comparison of the total average values concludes that the Chung et al. and Brule-Starling methods perform best in predicting the viscosity of all substances ranging from hydrogen to high molecular weight hydrocarbons in the temperature and pressure ranges specified in the current study. The quantified comparison by the total average also confirms that the Modified Propane TRAPP method best predicts the thermal conductivity of all of the 29 substances over the set temperature and pressure ranges, although the Propane TRAPP and Chung et al. methods offer a similar level of accuracy.

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Section: Introductionmentioning

confidence: 99%

Comparison and Evaluation of Transport Property Prediction Performance of Supercritical Hydrocarbon Aviation Fuels and Their Pyrolyzed Products via Endothermic Reactions

Hwang

Lee

2023

Energies

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“…High-temperature monitoring in confined spaces, such as a combustion chamber of an engine, applies harsh requirements on thermosensitive parts [ 1 , 2 , 3 , 4 , 5 ]. Compared to conventional wire and foil thermocouples, thin film thermocouple (TFTC) by microelectromechanical system (MEMS) process has the advantages of fast response speed and small size due to its low thermal mass and process [ 6 , 7 , 8 , 9 ]. Moreover, the thin films deposited by the MEMS process are exactly uniform without the problem of surface particles, which is more conducive to the production of large areas of films [ 10 ].…”

Section: Introductionmentioning

confidence: 99%

Horizontal Oxidation Diffusion Behavior of MEMS-Based Tungsten-Rhenium Thin Film Thermocouples

et al. 2022

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Tungsten-rhenium thin film thermocouples (TFTCs) are well suited for the surface temperature monitoring of hot components due to their small size, rapid response and low cost. In this study, a tungsten-rhenium TFTC with SiC protective film on all parts except the pads was fabricated by a microelectromechanical system (MEMS) process. During the low to medium temperature (−40 °C to 500 °C) repeatability test phase, the thermal voltage from the TFTC agreed well with that of the standard tungsten-rhenium thermocouple. However, during the high temperature test phase, the TFTC lost electronic response at around 620 °C. Failure analysis of the TFTC tested at 620 °C was performed by microscopy, scanning electron microscope (SEM), energy dispersive spectroscopy (EDS), laser scanning confocal microscope (LSCM) and statistics. The results showed that the pads were oxidized without the protective layer, the number of oxidized protrusions distributed in this TFTC from the pad to the node decreases more and more slowly and the size of the oxidized protrusions also becomes smaller and smaller. This demonstrates the presence of horizontal oxidation diffusion in TFTCs, further illustrating the importance of pad protection and provides a direction for the subsequent structural optimization and the extension of the service life of TFTCs and other sensors.

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“…Thus, surrogate models of aviation kerosene are extensively used in the literature. Table 1 summarizes the surrogate models of aviation kerosene (Zhang et al , 2017; Fan and Yu, 2006; Ren et al , 2013; Zeng et al , 2014; Xiao et al , 2010; Zheng et al , 2015; Pei and Hou, 2017; Jiang et al , 2013; Cheng et al , 2012; Zhong et al , 2009a; Li et al , 2019a). Apart from literature Jiang et al (2013), the rest are surrogate models of China no.…”

Section: Introductionmentioning

confidence: 99%

“…Jiang et al (2013) concluded that the HF-I kerosene can be replaced by a four-component model that has n-decane (0.25 mole fraction), n-dodecane (0.50 mole fraction), n-tridecane (0.12 mole fraction) and n-butylcyclohexane (0.13 mole fraction). Additionally, many other surrogate models of RP-3 have been reported as shown in Table 1 (Cheng et al , 2012; Zhong et al , 2009a; Li et al , 2019a).…”

Section: Introductionmentioning

confidence: 99%

Research status of supercritical aviation kerosene and a convection heat transfer considering thermal pyrolysis

Zhang

Xie

et al. 2022

HFF

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Purpose This paper aims to comprehensively clarify the research status of thermal transport of supercritical aviation kerosene, with particular interests in the effect of cracking on heat transfer. Design/methodology/approach A brief review of current research on supercritical aviation kerosene is presented in views of the surrogate model of hydrocarbon fuels, chemical cracking mechanism of hydrocarbon fuels, thermo-physical properties of hydrocarbon fuels, turbulence models, flow characteristics and thermal performances, which indicates that more efforts need to be directed into these topics. Therefore, supercritical thermal transport of n-decane is then computationally investigated in the condition of thermal pyrolysis, while the ASPEN HYSYS gives the properties of n-decane and pyrolysis products. In addition, the one-step chemical cracking mechanism and SST k-ω turbulence model are applied with relatively high precision. Findings The existing surrogate models of aviation kerosene are limited to a specific scope of application and their thermo-physical properties deviate from the experimental data. The turbulence models used to implement numerical simulation should be studied to further improve the prediction accuracy. The thermal-induced acceleration is driven by the drastic density change, which is caused by the production of small molecules. The wall temperature of the combustion chamber can be effectively reduced by this behavior, i.e. the phenomenon of heat transfer deterioration can be attenuated or suppressed by thermal pyrolysis. Originality/value The issues in numerical studies of supercritical aviation kerosene are clearly revealed, and the conjugation mechanism between thermal pyrolysis and convective heat transfer is initially presented.

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Experimental investigation on flow and heat transfer instabilities of RP-3 aviation kerosene in a vertical miniature tube under supercritical pressures

Cited by 27 publications

References 27 publications

Comparison and Evaluation of Transport Property Prediction Performance of Supercritical Hydrocarbon Aviation Fuels and Their Pyrolyzed Products via Endothermic Reactions

Comparison and Evaluation of Transport Property Prediction Performance of Supercritical Hydrocarbon Aviation Fuels and Their Pyrolyzed Products via Endothermic Reactions

Horizontal Oxidation Diffusion Behavior of MEMS-Based Tungsten-Rhenium Thin Film Thermocouples

Research status of supercritical aviation kerosene and a convection heat transfer considering thermal pyrolysis

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