Results 11 to 20 of about 49,471 (336)

Cooling capacity optimization of hydrocarbon fuels for regenerative cooling

Applied 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 ...
Wang, J, Jin, H, Gao, H, Wen, D
openaire   +2 more sources

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

Applied 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

Effect of Cooling Header on the Hydrocarbon Fuel Flow Distribution in a Regenerative Cooling Channel

International Journal of Aerospace Engineering, 2022
Regenerative cooling technology is the most widely used cooling technology in liquid rocket engines, and flow distribution is very important for regenerative cooling heat transfer.
Liang Yin, Jiaqiang E, Jie Ding
doaj   +1 more source

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

Aerospace, 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, Eldin Kurudzija, Jan Deeken, Günther Waxenegger-Wilfing   +3 more
doaj   +1 more source

Analysis and multi-response optimization of two dew point cooler configurations using the desirability function approach

Energy Reports, 2021
Due to climate change and hot summers in most of Algeria’s regions, air conditioning has become a thorny issue, resulting in excessive energy consumption.
A.F. Boudjabi, C. Maalouf, T. Moussa, D. Abada, D. Rouag, M. Lachi, G. Polidori   +6 more
doaj   +1 more source

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

Energies, 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

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

Energies, 2023
This study presents results of predicting the transport properties of hydrocarbon aviation fuels and their decomposed products after pyrolysis.
Sung-rok Hwang, Hyung Ju Lee
doaj   +1 more source

Numerical Investigation on the Thermal Behaviour of a LOx/LCH₄ Demonstrator Cooling System

Aerospace, 2021
Reliability of liquid rocket engines is strictly connected with the successful operation of cooling jackets, able to sustain the impressive operative conditions in terms of huge thermal and mechanical loads, generated in thrust chambers. Cryogenic fuels,
Daniele Ricci, Francesco Battista, Manrico Fragiacomo   +2 more
doaj   +1 more source

Preliminary Design and Simulation of a Thermal Management System with Integrated Secondary Power Generation Capability for a Mach 8 Aircraft Concept Exploiting Liquid Hydrogen

Aerospace, 2023
This paper introduces the concept of a thermal management system (TMS) with integrated on-board power generation capabilities for a Mach 8 hypersonic aircraft powered by liquid hydrogen (LH2).
Davide Ferretto, Nicole Viola
doaj   +1 more source

Progress in Regenerative Cooling and Coking Carbon Accumulation of High-Density Heat-Absorbing Hydrocarbon Fuels [PDF]

Hangkong bingqi
Hypersonic scramjet engines encounter extreme thermal loading conditions during sustained operation. Regenerative cooling has emerged as a cost-efficient and thermodynamically viable strategy for extreme thermal protection in hypersonic propulsion ...
Ma Zhengzheng, Mao Qian, Cheng Yifan, Shi Baolu, Wang Ningfei
doaj   +1 more source