Results 31 to 40 of about 49,471 (336)

Numerical Study on Flow and Heat Transfer of Supercritical Hydrocarbon Fuel in Curved Cooling Channel

Applied Sciences, 2022
The fluid flow and heat transfer of hydrocarbon fuel play a significant role in developing regenerative cooling technology for advanced aeroengines. Numerical simulations have been conducted to investigate the flow and heat transfer characteristics of ...
Ying Zhang, Yong Cao, Keyu Gong, Shuyuan Liu, Limin Wang, Zhengchun Chen   +5 more
doaj   +1 more source

Transcritical Behavior of Methane in the Cooling Jacket of a Liquid-Oxygen/Liquid-Methane Rocket-Engine Demonstrator

Energies, 2022
The successful design of a liquid rocket engine is strictly linked to the development of efficient cooling systems, able to dissipate huge thermal loads coming from the combustion in the thrust chamber.
Daniele Ricci, Francesco Battista, Manrico Fragiacomo   +2 more
doaj   +1 more source

Thermal Behaviour of the Cooling Jacket Belonging to a Liquid Oxygen/Liquid Methane Rocket Engine Demonstrator in the Operation Box

Aerospace, 2023
The cooling jackets of liquid rocket engines are composed of narrow passages surrounding the thrust chambers and ensure the reliable operation of the engine.
Daniele Ricci, Francesco Battista, Manrico Fragiacomo, Ainslie Duncan French   +3 more
doaj   +1 more source

An innovative pressure swing adsorption cycle [PDF]

, 2019
Over the last century, fresh water and cooling demand have been increased tremendously due to improved living standard, industrial and economic development.
Burhan, Muhammad, Ng, Kim Choon, Oh, Seung Jin, Shahzad, Muhammad Wakil, Ybyraiymkul, Doskhan   +4 more
core   +1 more source

A Simplified Thermal Analysis Model for Regeneratively Cooled Rocket Engine Thrust Chambers and Its Calibration with Experimental Data

Aerospace, 2023
An essential part of the design of a liquid rocket engine is the thermal analysis of the thrust chamber, which is a component whose operative life is limited by the maximum allowable wall temperature and heat flux.
Matteo Fagherazzi, Marco Santi, Francesco Barato, Marco Pizzarelli   +3 more
doaj   +1 more source

Numerical Analysis of a Supercritical Heat Transfer of Cryogenic Methane in Regeneratively Cooled Rocket Engine [PDF]

INCAS Bulletin
A comparative study of supercritical heat transfer in a regeneratively cooled rocket engine was conducted using three-dimensional numerical simulations for two channel geometries: rectangular and square. Various constant heat fluxes, flow velocities, and
Mohammed Amine DJEFFAL, Nabil BENAMARA, Abdelkader LAHCENE, Ali BENOUAR, Abdelkader BOULENOUAR, Mohammed MERZOUG   +5 more
doaj   +1 more source

Seasonal Analysis Comparison of Three Air-Cooling Systems in Terms of Thermal Comfort, Air Quality and Energy Consumption for School Buildings in Mediterranean Climates

Energies, 2021
Efficient air-cooling systems for hot climatic conditions, such as Southern Europe, are required in the context of nearly Zero Energy Buildings, nZEB. Innovative air-cooling systems such as regenerative indirect evaporative coolers, RIEC and desiccant ...
María Jesús Romero-Lara, Francisco Comino, Manuel Ruiz de Adana   +2 more
doaj   +1 more source

Flow Distribution Characteristics of Supercritical Hydrocarbon Fuel in Parallel Channels with Pyrolysis

Xibei Gongye Daxue Xuebao, 2019
Due to the asymmetric geometry of flowpath and combustion organization, the heat flux distribution on RBCC's walls are extremely non-uniform. With a validated numerical model considering the changes of thermophysical properties and chemical components ...

doaj   +1 more source

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

Energies, 2020
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.
Jianguo Yan, Shouchun Liu, Pengcheng Guo, Qincheng Bi   +3 more
doaj   +1 more source

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

International 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, Xin Li, Jiang Qin, Silong Zhang, Wen Bao   +4 more
doaj   +1 more source