Evaluation of heat transfer and thermal stability of supercritical JP-7 fuel

Linne, Diane L.; Meyer, Michaël; Edwards, Tim; Eitman, D. A.

doi:10.2514/6.1997-3041

Cited by 70 publications

(39 citation statements)

References 8 publications

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“…Additionally, when the fuel near the wall was heated to above 600 K, the fuel became supercritical and heat convection was significantly enhanced. Enhancement in the convective heat transfer of kerosene flow when approaching its critical temperature has been observed in many of other studies [9,15,25] under much larger wall heat fluxes (500-1000 W=cm 2 ). However, it has to be pointed out that, for the current study with lower heat fluxes, neither a sudden change in heat convection, nor pressure oscillation and the associated flow instability, were observed, as found in the literature [9,15,25].…”

Section: Heat Transfer Characteristics Of Kerosene Flowsmentioning

confidence: 80%

Heat Transfer of Aviation Kerosene at Supercritical Conditions

Zhong

Fan

Gong

et al. 2009

Journal of Thermophysics and Heat Transfer

183

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The heat transfer characteristics of China no. 3 kerosene were investigated experimentally and analytically under conditions relevant to a regenerative cooling system for scramjet applications. A test facility developed for the present study can handle kerosene in a temperature range of 300-1000 K, a pressure range of 2.6-5 MPa, and a mass flow rate range of 10-100 g=s. In addition, the test section was uniquely designed such that both the wall temperature and the bulk fuel temperature were measured at the same location along the flowpath. The measured temperature distributions were then used to analytically deduce the local heat transfer characteristics. A 10-component kerosene surrogate was proposed and employed to calculate the fuel thermodynamic and transport properties that were required in the heat transfer analysis. Results revealed drastic changes in the fuel flow properties and heat transfer characteristics when kerosene approached its critical state. Convective heat transfer enhancement was also found as kerosene became supercritical. The heat transfer correlation in the relatively low-fuel-temperature region yielded a similar result to other commonly used jet fuels, such as JP-7 and JP-8, at compressed liquid states. In the high-fuel-temperature region, near and beyond the critical temperature, heat transfer enhancement was observed; hence, the associated correlation showed a more significant Reynolds number dependency.

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Section: Heat Transfer Characteristics Of Kerosene Flowsmentioning

confidence: 80%

Heat Transfer of Aviation Kerosene at Supercritical Conditions

Zhong

Fan

Gong

et al. 2009

Journal of Thermophysics and Heat Transfer

183

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“…Supercritical fluid has been applied broadly in aeronautics, astronautics and nuclear reactor due to its excellent heat transfer properties [1,2]. The specific heat capacity of supercritical fluid has a peak value when it varies with temperature at a supercritical pressure.…”

Section: Introductionmentioning

confidence: 99%

“…3 aviation kerosene at supercritical conditions experimentally. Linne et al [2] evaluated the heat transfer of supercritical JP-7 fuel experimentally. However, they did not consider the influences of the body force on the convective heat transfer.…”

Section: Introductionmentioning

confidence: 99%

Study of turbulent heat transfer of aviation kerosene flows in a curved pipe at supercritical pressure

Zhong

Fan

et al. 2010

Applied Thermal Engineering

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a b s t r a c tThe flow and heat transfer characteristics of China No. 3 aviation kerosene in a heated curved tube under supercritical pressure are numerically investigated by a finite volume method. A two-layer turbulence model, consisting of the RNG kee two-equation model and the Wolfstein one-equation model, is used for the simulation of turbulence. A 10-species kerosene surrogate model and the NIST Supertrapp software are applied to obtain the thermophysical and transport properties of the kerosene at various temperature under a supercritical pressure of 4 MPa. The large variation of thermophysical properties of the kerosene at the supercritical pressure make the flow and heat transfer more complicated, especially under the effects of buoyancy and centrifugal force. The centrifugal force enhances the heat transfer, but also increases the friction factors. The rise of the velocity caused by the variation of the density does not enhance the effects of the centrifugal force when the curvature ratios are less than 0.05. On the contrary, the variation of the density increases the effects of the buoyancy.

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“…Consequently, it is widely adopted for the heat transfer research of hydrocarbon fuels (Linne, Meyer, & Edwards 1997;Wishart, Fortin, & Guinan 2003). Figure 3 illustrates the sketch of electrically heated tube.…”

Section: Electrically Heated Tube Testmentioning

confidence: 99%

Three-Dimensional Numerical Method for Supercritical Heat Transfer of Hydrocarbon Fuels

Zhao

Song

Zhang

2015

APR

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In order to study the regenerative cooling mechanism, a three-dimensional numerical method for supercritical heat transfer of hydrocarbon fuels was established based on the Navier-Stokes equations and a thermophysical properties evaluation code. The supercritical heat transfer behavior of n-decane inside an electrically heated tube and n-dodecane inside a fuel-cooled panel has been computed. Detailed distributions of outer wall temperature and fuel temperature were obtained. The corresponding measurements are adopted to validate the numerical method. The relative deviations of the computational outer wall temperature from the test results are within 6.8%, and those of the fuel temperature are within 1%. Those indicate that the numerical method is reliable, and can be used as an effective tool to investigate the supercritical heat transfer of hydrocarbon fuels.

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Evaluation of heat transfer and thermal stability of supercritical JP-7 fuel

Cited by 70 publications

References 8 publications

Heat Transfer of Aviation Kerosene at Supercritical Conditions

Heat Transfer of Aviation Kerosene at Supercritical Conditions

Study of turbulent heat transfer of aviation kerosene flows in a curved pipe at supercritical pressure

Three-Dimensional Numerical Method for Supercritical Heat Transfer of Hydrocarbon Fuels

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