Results 11 to 20 of about 50,563 (351)

Heat transfer and flow structures of supercritical n-decane in a regenerative cooling channel loaded with non-uniform heat flux

open access: yesFrontiers in Energy Research, 2022
A harsh and complex thermal environment in the combustor threatens safe working of scramjets. In this study, heat transfer and flow structures of supercritical n-decane under 3 MPa in a regenerative cooling channel loaded with non-uniform heat flux ...
Jian Liu   +4 more
doaj   +1 more source

Regenerative Cooling Comparison of LOX/LCH4 and LOX/LC3H8 Rocket Engines Using the One-Dimensional Regenerative Cooling Modelling Tool ODREC

open access: yesApplied Sciences, 2023
Due to the extreme temperatures inside the combustion chambers of liquid propellant rocket engines, the walls of the combustion chamber and the nozzle are cooled by either the fuel or the oxidizer in what is known as regenerative cooling.
Yigithan Mehmet Kose, Murat Celik
doaj   +1 more source

Active magnetic regenerative cooling with smaller magnets [PDF]

open access: yesInternational Journal of Refrigeration, 2021
Abstract Magnetocaloric heat pumping near room temperature, a.k.a. magnetic cooling, relies on the active regenerator cycle to achieve functional temperature spans and realize economic and societal benefits promised by this emerging solid-state cooling technology.
Griffith, Lucas   +3 more
openaire   +3 more sources

Improved Wall Temperature Prediction for the LUMEN Rocket Combustion Chamber with Neural Networks

open access: yesAerospace, 2023
Accurate calculations of the heat transfer and the resulting maximum wall temperature are essential for the optimal design of reliable and efficient regenerative cooling systems.
Kai Dresia   +3 more
doaj   +1 more source

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

open access: yesEnergies, 2021
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 ...
Jiangyu Hu, Ning Wang, Jin Zhou, Yu Pan
doaj   +1 more source

Numerical Investigation on the Heat Transfer of n-Decane in a Horizontal Channel with Axially Nonuniform Heat Flux under Supercritical Pressure

open access: yesAerospace, 2022
Regenerative cooling is considered promising in the thermal protection of hypersonic propulsion devices such as SCRamjet. However, the heat transfer deterioration (HTD) of hydrocarbon fuel is a severe threat to the thermal structure safety, especially ...
Jin Zhang   +4 more
doaj   +1 more source

A Coupled Heat Transfer Calculation Strategy for Composite Cooling Liquid Rocket Engine

open access: yesAerospace, 2023
To better understand the characteristics of coupled heat transfer in liquid rocket engines, a calculation scheme is proposed in this paper. This scheme can simulate the coupled heat transfer processes, including combustion and flow in the thrust chamber,
Bo Xu   +4 more
doaj   +1 more source

Numerical Study on the Effect of Buoyancy on Heat Transfer and Flow of Aviation Kerosene

open access: yesHangkong gongcheng jinzhan, 2021
Under different gravity conditions, the buoyancy can influence different effects of regeneration cooling effect of aviation kerosene.The RNG k-ε turbulence three-dimensional model is established, which is verified by comparing the wall temperature ...
YAO Changxin
doaj   +1 more source

Junction temperature of CMOS electronics cooled by a regenerative cryocooler

open access: yesSSRN Electronic Journal, 2021
The optimal operation of cryo-CMOS electronics requires accurate knowledge of the junction temperature, which may be derived from the design parameters of the mechanical cryocooler and cryospace. Research on the subject has been mostly restricted to limited examples of coupled cryocooler-cryocomputer operation with little quantitative analysis.
Smirnov, Dmitry   +2 more
openaire   +3 more sources

Progress of Coupled Heat Transfer Mechanisms of Regenerative Cooling System in a Scramjet

open access: yesEnergies, 2023
The feasibility of regenerative cooling technology in scramjet engines has been verified, while the heat transfer behavior involved in the process needs further study.
Ni He, Chaoyang Liu, Yu Pan, Jian Liu
doaj   +1 more source

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