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Jin Peng, Jigao Liu, Xiaohong Yang, Jianya Ge, Peng Han, Xingxing Wang, Shuai Li and Yongbiao Wang
In this paper, a heat-flow coupling model of laser welding at preheating temperature was established by the FLUENT 19.0 software. The fluctuation of the keyhole wall and melt flow behavior in the molten pool under different preheating temperatures were a...
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Guang Liang, Chaoji Zhou and Yuxiang Liu
This study established finite-element models via LS-DYNA software to predict the critical velocity of Ti spray particles under different collision velocities and preheating temperatures. Particle deformation, collision temperature, and bonding types of t...
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Wonjae Yoon, Vikas Khandu Bhosale and Hosung Yoon
Ammonia dinitramide (ADN)-based liquid monopropellants are considered to be environmentally friendly alternatives to the toxic and carcinogenic hydrazine-based propellants. Hence, Space Solutions Co., Ltd. is developing a 1N ADN-based liquid monopropella...
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Alexander Hauser, Michael Neubert, Alexander Feldner, Alexander Horn, Fabian Grimm and Jürgen Karl
The methanation process is discussed as one way to chemically store renewable energy in a future energy system. An important criterion for its application is the availability of compact, low-cost reactor concepts with high conversion rates for decentrali...
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Wellington Lucas Tondo, Flavio Gurgacz, Reginaldo Ferreira Santos, Ivan Werncke, Felipe Fernandes Klajn, Anderson Miguel Lenz
Pág. 609 - 614
Frying oil is one of the major environmental problems in urban centers, causing blockage of sewer pipes and pollution of rivers. Producing biodiesel with frying oil is an alternative to reduce the environmental impacts generated in the undue discar...
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Wellington Lucas Tondo, Flavio Gurgacz, Reginaldo Ferreira Santos, Ivan Werncke, Felipe Fernandes Klajn, Anderson Miguel Lenz (Author)
Pág. 609 - 614
Frying oil is one of the major environmental problems in urban centers, causing blockage of sewer pipes and pollution of rivers. Producing biodiesel with frying oil is an alternative to reduce the environmental impacts generated in the undue discar...
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Anagha Pathak,Kiran Deshpande,Sandesh Jadkar
Pág. 19 - 33
There is a huge potential to deploy solar thermal energy in process heat applications in industrial sectors. Around 50 % of industrial heat demand is less than 250 °C which can be addressed through solar energy. The heat energy requirement of industries ...
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Bernard A. Zulu, Shingo Miyazawa and Nobukazu Nito
Thermal stresses are generated in concrete during the accelerated curing process in precast concrete. These stresses may cause concrete to crack, which would have a negative effect on the general concrete performance. This paper provides the results of t...
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Nuri Eshoul, Abdulrahman Almutairi, Rasaq Lamidi, Hamad Alhajeri and Abdulrahman Alenezi
Desalination is the sole proven technique that can provide the necessary fresh water in arid and semi-arid countries in sufficient quantities and meet the modern needs of a growing world population. Multi effect desalination with thermal vapour compressi...
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Nuri Eshoul, Abdulrahman Almutairi, Rasaq Lamidi, Hamad Alhajeri and Abdulrahman Alenezi
Desalination is the sole proven technique that can provide the necessary fresh water in arid and semi-arid countries in sufficient quantities and meet the modern needs of a growing world population. Multi effect desalination with thermal vapour compressi...
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Wonjae Yoon, Vikas Khandu Bhosale and Hosung Yoon
The development of propulsion systems based on green propellants, as an alternative to hydrazines, has been gaining interest within the space community. The study of Ammonium Dinitramide (ADN)-based liquid monopropellant, which is low-toxic and can deliv...
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Balázs Bokor, Hacer Akhan, Dogan Eryener, László Kajtár
Pág. 57 - 66
Transpired solar collector (TSC) systems are simple solutions for the preheating of ventilation air with solar energy. Their performance is a function of several environmental factors, so the climatic conditions of the location play an important role. In...
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Mao Li, Yiheng Tong, Marcus Thern and Jens Klingmann
Steam-diluted combustion in gas turbine systems is an effective approach to control pollutant emissions and improve the gas turbine efficiency. The primary purpose of the present research is to analyze the influence of steam dilution on the combustion st...
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Wolfgang Tillmann, Leif Hagen and Weifeng Luo
Residual stresses have been a major source of concern, as they are an inevitable consequence of manufacturing and fabrication processes. The magnitude of these stresses is often as high as, or at least, comparable to the yield strength of the material. I...
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