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Yanhong Wang, Sufen Li and Ming Dong
In order to obtain a deeper understanding of the regenerative cooling process of scramjet engines, in this paper, a numerical investigation on the supercritical convective heat transfer of n-decane in horizontal circular tubes was conducted, based on a c...
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Jin Zhang, Qilin Zhou, Xudong Zhao, Yuguang Jiang and Wei Fan
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 un...
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Yin Zhang, Jian Shen, Liwei He, Jimeng Feng, Lina Chi and Xinze Wang
Human activities, global warming, frequent extreme weather events, and changes in atmospheric composition affect the solar radiation reaching the Earth?s surface, affect mass and heat transfer at the air?water interface, and induce oscillations in wind-d...
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Mario Carta, Tiziano Ghisu and Shahrokh Shahpar
Due to the increasingly high turbine inlet temperatures, heat transfer analysis is now, more than ever, a vital part of the design and optimization of high-pressure turbine rotor blades of a modern jet engine. The present study aimed to find out how shap...
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Ping Liu, Wentao Shi, Bo Sun, Qian Wang, Xiaokun Xie and Changqing Li
Burial stone relics remain in a humid, semi-enclosed environment for long periods, and temperature and humidity variations can cause deterioration acceleration. Yang Can?s tomb was selected as the research object, and field monitoring and simulations wer...
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Jian Liu, Mengyao Xu, Pengchao Liu and Wenxiong Xi
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. As a supplement of traditional regenera...
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Maria Coutinho, Frederico Afonso, Alain Souza, David Bento, Ricardo Gandolfi, Felipe R. Barbosa, Fernando Lau and Afzal Suleman
The electrification of an aircraft?s propulsive system is identified as a potential solution towards a lower carbon footprint in the aviation industry. One of the effects of increased electrification is the generation of a large amount of waste heat that...
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Elena Verticchio, Francesca Frasca, Fernando-Juan Garcìa-Diego and Anna Maria Siani
Passive microclimate frames are exhibition enclosures able to modify their internal climate in order to comply with paintings? conservation needs. Due to a growing concern about the effects of climate change, future policies in conservation must move tow...
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Qi Jing, Yonghui Xie and Di Zhang
The trailing edge regions of high-temperature gas turbine blades are subjected to extremely high thermal loads and are affected by the external wake flow during operation, thus creating great challenges in internal cooling design. With the development of...
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Elham Salari, Mohsen Peyghambarzadeh, Mohammad Mohsen Sarafraz, Faramarz Hormozi
Pág. 252 - 258
This paper focuses on the thermal performance of alumina nano-fluids during the quenching process of a surface at the boiling condition, which can be a good answer to the controversial results available in the nano-fluid related literature. For this purp...
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Corentin Penot, David Martelo and Shiladitya Paul
Geothermal power is an attractive and environmentally friendly energy source known for its reliability and efficiency. Unlike some renewables like solar and wind, geothermal energy is available consistently, making it valuable for mitigating climate chan...
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Daniele Ricci, Francesco Battista, Manrico Fragiacomo and Ainslie Duncan French
The cooling jackets of liquid rocket engines are composed of narrow passages surrounding the thrust chambers and ensure the reliable operation of the engine. Critical conditions may also be encountered, since the cooling jackets of cryogenic engines, suc...
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Qijiao Xie, Qi Sun and Zhonglu Ouyang
Monitoring the relationship between the urban heat island (UHI) effect and land use/land cover (LULC) is of great significance in land use planning to adapt to climate change. However, the dynamic response of the UHI effect to LULC change over space and ...
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