Results 11 to 20 of about 1,571,082 (390)

The Influence of Thrust Chamber Structure Parameters on Regenerative Cooling Effect with Hydrogen Peroxide as Coolant in Liquid Rocket Engines

open access: yesAerospace, 2023
Liquid rocket engines with hydrogen peroxide and kerosene have the advantages of high density specific impulse, high reliability, and no ignition system.
Chuang Zhou   +6 more
doaj   +2 more sources

Heat Transfer and Flow Structure Characteristics of Regenerative Cooling in a Rectangular Channel Using Supercritical CO2

open access: yesAerospace, 2023
At an extremely high Mach number, the regenerative cooling of traditional kerosene cannot meet the requirement of the heat sink caused by aerodynamic heating and internal combustion in a scramjet propulsion system.
Jian Liu   +3 more
doaj   +2 more sources

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   +2 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   +2 more sources

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.
Vitalij K. Pecharsky   +4 more
openaire   +5 more sources

Cooling capacity optimization of hydrocarbon fuels for regenerative cooling

open access: yesApplied Thermal Engineering, 2022
As an effective method for heat management of hypersonic vehicles, regenerative cooling faces a severe problem of insufficient cooling capacity under high-speed conditions. Aiming to increase the cooling capacity of a given fuel, we conducted an optimization study by considering the influence of working conditions, chemical kinetics, and chemical ...
Dongsheng Wen   +7 more
openaire   +3 more sources

Heat Transfer Analysis and Structural Optimization for Spiral Channel Regenerative Cooling Thrust Chamber

open access: yesInternational Journal of Aerospace Engineering, 2023
There is currently a lack of efficient heat transfer analysis methodologies for spiral channel regenerative cooling that has been increasingly applied in liquid rocket engines.
Junjie Lv   +3 more
doaj   +2 more sources

Effect of Dimple Depth-Diameter Ratio on the Flow and Heat Transfer Characteristics of Supercritical Hydrocarbon Fuel in Regenerative Cooling Channel

open access: yesInternational Journal of Aerospace Engineering, 2021
In order to extend the cooling capacity of thermal protection in various advanced propulsion systems, dimple as an effective heat transfer enhancement device with low-pressure loss has been proposed in regenerative cooling channels of a scramjet. In this
Lihan Li   +4 more
doaj   +2 more sources

Quasi-One-Dimensional Model of Hydrocarbon-Fueled Scramjet Combustor Coupled with Regenerative Cooling

open access: yesInternational Journal of Aerospace Engineering, 2022
In order to rapidly predict the performance of hydrocarbon-fueled regeneratively cooled scramjet engine in system design, a quasi-one-dimensional model has been developed.
Yuefei Xiong   +4 more
doaj   +2 more sources

Coupled Heat Transfer Analysis in Regeneratively Cooled Thrust Chambers [PDF]

open access: green48th AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit, 2012
The coupled hot gas–wall–coolant environment that occurs in regeneratively cooled liquid rocket engines is studied by a computational procedure able to provide a quick and reliable prediction of thrust chamber wall temperature and heat flux as well as coolant flow characteristics, like pressure drop and temperature gain in the regenerative circuit. The
BETTI, BARBARA   +2 more
openaire   +6 more sources

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