Research on heat transfer characteristics of kerosene at supercritical pressure in circular tubes

Zhao, Wenzhe; Song, Zichen; Li, Hongzhi; Gu, Hongfang; Tuo, Xiaobing; Zheng, Yulong

doi:10.1016/j.expthermflusci.2018.03.030

Cited by 11 publications

(2 citation statements)

References 24 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Although there are many literatures concerning the thermal protection and regenerative cooling of scramjet engines, most of them has been simplified to a certain extent. For example, the electric heating experiments were used to model the thermal environment of the cooling channels [25,26], or the flow and heat transfer characteristics of hydrocarbon fuel were numerically investigated at a given wall heat flux [27,28]. The coupled heat transfer of high-temperature gas and regenerative cooling panel are seldom taken into consideration in the existing literatures.…”

Section: Introductionmentioning

confidence: 99%

A Parametrical Study on Convective Heat Transfer between High-Temperature Gas and Regenerative Cooling Panel

Wang

Zhang

et al. 2021

Energies

View full text Add to dashboard Cite

Thermal protection is still one of the key challenges for successful scramjet operations. In this study, the three-dimensional coupled heat transfer between high-temperature gas and regenerative cooling panel with kerosene of supercritical pressure flowing in the cooling channels was numerically investigated to reveal the fundamental characteristics of regenerative cooling as well as its influencing factors. The SST k-ω turbulence model with low-Reynolds-number correction provided by the pressure-based solver of Fluent 19.2 is adopted for simulation. It was found that the heat flux of the gas heated surface is in the order of 106 W/m2, and it declines along the flow direction of gas due to the development of boundary layer. Compared with cocurrent flow, the temperature peak of the gas heated surface in counter flow is much higher. The temperature and heat flux of the gas heated surface both rises with the static pressure and total temperature of gas. The heat flux of the gas heated surface increases with the mass flow rate of kerosene, and it hardly changes with the pressure of kerosene. Results herein could help to understand the real heat transfer process of regenerative cooling and guide the design of thermal protection systems.

show abstract

Section: Introductionmentioning

confidence: 99%

A Parametrical Study on Convective Heat Transfer between High-Temperature Gas and Regenerative Cooling Panel

Wang

Zhang

et al. 2021

Energies

View full text Add to dashboard Cite

show abstract

“…Kerosene, a kind of hydrocarbon fuel, is often used for liquid rocket engine cooling [10,11]. The working pressure of kerosene in the regenerative cooling system of a rocket engine is typically 20-25 MPa (far higher than its critical pressure, which is approximately 2 MPa), and its velocity can reach 40-60 m/s in order to remove heat flux with a 10-MW/m 2 level.…”

Section: Introductionmentioning

confidence: 99%

Experiments on Heat Transfer of Supercritical Pressure Kerosene in Mini Tube under Ultra-High Heat Fluxes

et al. 2020

View full text Add to dashboard Cite

Heat transfer of supercritical-pressure kerosene is crucial for regenerative cooling systems in rocket engines. In this study, experiments were devoted to measure the heat transfer of supercritical-pressure kerosene under ultra-high heat fluxes. The kerosene flowed horizontally in a mini circular tube with a 1.0 mm inner diameter and was heated uniformly under pressures of 10–25 MPa, mass fluxes of 8600–51,600 kg/m2 s, and a maximum heat flux of up to 33.6 MW/m2. The effects of the operating parameters on the heat transfer of supercritical-pressure kerosene were discussed. It was observed that the heat transfer coefficient of kerosene increases at a higher mass flux and inlet bulk temperature, but is little affected by pressure. The heat transfer of supercritical-pressure kerosene is classified into two regions: normal heat transfer and enhanced heat transfer. When the wall temperature exceeds a certain value, heat transfer is enhanced, which could be attributed to pseudo boiling. This phenomenon is more likely to occur under higher heat flux and lower mass flux conditions. In addition, the experimental data were compared with several existing heat transfer correlations, in which one of these correlations can relatively well predict the heat transfer of supercritical-pressure kerosene. The results drawn from this study could be beneficial to the regenerative cooling technology for rocket engines.

show abstract

Experimental study on the thermodynamic characteristics of the high temperature hydrocarbon fuel in the cooling channel of the hypersonic vehicle

Qin

Jiang

et al. 2019

Acta Astronautica

View full text Add to dashboard Cite

Research on heat transfer characteristics of kerosene at supercritical pressure in circular tubes

Cited by 11 publications

References 24 publications

A Parametrical Study on Convective Heat Transfer between High-Temperature Gas and Regenerative Cooling Panel

A Parametrical Study on Convective Heat Transfer between High-Temperature Gas and Regenerative Cooling Panel

Experiments on Heat Transfer of Supercritical Pressure Kerosene in Mini Tube under Ultra-High Heat Fluxes

Experimental study on the thermodynamic characteristics of the high temperature hydrocarbon fuel in the cooling channel of the hypersonic vehicle

Contact Info

Product

Resources

About