Results 21 to 30 of about 48,816 (291)

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

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

Energy saving potential of a counter-flow regenerative evaporative cooler for various climates of China: Experiment-based evaluation [PDF]

, 2017
© 2017 Recently there has been growing interest in regenerative evaporative coolers (REC), which can reduce the temperature of the supply air to below the wet-bulb of intake air and approach its dew-point.
Chen, Hongbing, Dong, Xuelin, Duan, Zhiyin, Zhan, Changhong, Zhao, Xudong   +4 more
core   +1 more source

Numerical framework of hybrid nanofluid over two horizontal parallel plates with non-linear thermal radiation

International Journal of Thermofluids, 2023
Significance of study: High combustion temperatures necessitate appropriate cooling systems in the combustion process. Regenerative cooling is used in the majority of chambers in liquid propellant engines.
Umar Farooq, Hassan Waqas, Sobia Noreen, Muhammad Imran, Ali Akgül, Dumitru Baleanu, Sayed M.El Din, Taseer Muhammad, Ahmed M Galal   +8 more
doaj   +1 more source

Comparative Study of the Cross-Flow Heat and Mass Exchangers for Indirect Evaporative Cooling Using Numerical Methods

Energies, 2018
This paper presents a comparative study of the cross-flow regenerative heat and mass exchanger (HMX) and the conventional cross-flow HMX for indirect evaporative cooling (IEC) with numerical methods.
Yugang Wang, Xiang Huang, Li Li
doaj   +1 more source

Mechanical oscillation and cooling actuated by the optical gradient force [PDF]

, 2009
In this work we combine the large per-photon optical gradient force with the sensitive feedback of a high quality factor whispering-gallery microcavity.
Jessie Rosenberg, Kerry J. Vahala, Oskar Painter, Qiang Lin, V. B. Braginskiĭ, V. B. Braginskiĭ, Xiaoshun Jiang   +6 more
core   +2 more sources

Improving the performance of LOX/kerosene upper stage rocket engines

Propulsion and Power Research, 2017
Improved liquid rocket engine cycles were proposed and analyzed via comparison with existing staged combustion and gas-generator cycles. The key features of the proposed cycles are regenerative cooling of thrust chamber by oxygen and subsequent use of ...
IgorN. Nikischenko, Raymond D. Wright, Roman A. Marchan   +2 more
doaj   +1 more source

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

Effects of thermal and pressure loads on structural deformation of liquid oxygen/methane engine combustion chamber

Journal of Thermal Science and Technology, 2020
To investigate the influences of thermal and pressure loads on the structural deformation of the Liquid Oxygen/Methane rocket engine combustion chamber, a complete thermo-structural analysis scheme including fluid-thermal analysis and structural finite ...
Di LIU, Bing SUN, Jiawen SONG, Taiping WANG, Xingyu MA   +4 more
doaj   +1 more source