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Xiaoling Yang, Zhefeng Wang, Ze Zhang, Shuangtao Chen, Yu Hou and Liang Chen
As a requirement for sustainable development, air-cycle refrigeration has received wide attention as a candidate for environmentally friendly air conditioning technology. In this study, the thermodynamic performance of air refrigeration cycles is investi...
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Lin Li, David Z. Zhu and Biao Huang
Rapid filling/emptying of pipes is commonly encountered in water supply and sewer systems, during which pressure transients may cause unexpected large pressure and/or geyser events. In the present study, a linearized analytical model is first developed t...
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Chih-Yung Huang, Cheng-Kang Hu, Chih-Jie Yu and Cheng-Kuo Sung
This study presents an experimental investigation of a piston engine driven by compressed air. The compressed air engine was a modified 100 cm3 internal combustion engine obtained from a motorcycle manufacturer. The experiments in this study u...
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Shiqun Dai, Jiayao Zhang, Weidong Jia, Mingxiong Ou, Huitao Zhou, Xiang Dong, Hong Chen, Ming Wang, Yu Chen and Shuai Yang
An air-assisted electrostatic nozzle uses a combination of air-assisted atomization and electrostatic spray technology. This article optimizes the existing air-assisted electrostatic nozzles in terms of structural design to obtain a higher charge-to-mass...
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Oleksandr Mytrofanov,Arkadii Proskurin,Andrii Poznanskyi
Pág. 80 - 85
This paper reports the results of an experimental study of the prototype rotary-piston air motor RPD-4,4/1,75 in the form of speed characteristics.The maxima of the air motor's performance effective indicators have been determined, as well as the rotatio...
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Guido Saccone and Marco Marini
In the framework of the ?Multidisciplinary Optimization and Regulations for Low-boom and Environmentally Sustainable Supersonic aviation? project, pursued by a consortium of European government and academic institutions, coordinated by Politecnico di Tor...
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Yijiao Guo, Luchen Zhang, Lei Yu, Shaoze Luo, Chuang Liu and Yuan Liu
To account for changes in the performance of spillway aerator structures of high-altitude dams, depressurization generalized model experiments and theoretical analyses were conducted in this study. Measurements were taken for ventilation hole air velocit...
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Ottfried Dietrich and Axel Behrendt
Agriculturally used wet grassland sites (WGSs) with shallow water tables are considered to be sites with a special microclimate. Meteorological measurement series, examining the air temperature (Ta) and vapour pressure (VP) in three regions, reveal diffe...
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Jordi-Roger Riba
Due to the increase in electrical power demand, future more electric and all-electric aircraft designs will operate at higher voltage levels compared to current aircraft. Due to higher voltage levels and reduced operating pressure, insulation systems wil...
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Yinxin Zhu, Zhenbing Luo, Wenqiang Peng, Qiang Liu, Yan Zhou, Wei Xie, Pan Cheng, Zhengxue Ma and Xuzhen Xie
To effectively reduce shock wave loss at the trailing edge of a supersonic cascade under high back-pressure, a shock wave control method based on air jets is proposed. The air jet was arranged on the pressure side of the blade in the upstream of the trai...
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Tengfei (Tim) Zhang, Jinsong Dong and Sumei Liu
Leaked air from an aircraft cabin into its envelope walls through cracks can lead to a large amount of moisture condensation on inner shell skins and in insulation layers. The leaked-air rate is subject to the stack pressure difference and the geometry o...
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Yao Shi, Jinyi Ren, Shan Gao and Guang Pan
In order to study the influence of pressure-equalizing exhaust at the shoulder of a submarine-launched vehicle on the surface hydrodynamic characteristics, this paper establishes a numerical calculation method based on the VOF multiphase flow model, the ...
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Kacper Palkus and Piotr Strzelczyk
The dimensional analysis and the numerical parametric study of the typical outer air seal from a low-pressure turbine were performed in the framework of the presented paper. The most crucial variables for the flow through the outer air seal were identifi...
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Michele Calati, Edoardo De Monte and Simone Mancin
In recent years, in order to counteract the growth of environmental pollution and the contemporary scarcity of various energy sources, researchers have proposed innovative and efficient solutions for heat transfer applications. Extended surfaces, which c...
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Oleg Bazaluk, Alim Ennan, Serhii Cheberiachko, Oleh Deryugin, Yurii Cheberiachko, Pavlo Saik, Vasyl Lozynskyi and Ivan Knysh
In this paper, a solution to the problem of the change in the pressure drop in a respirator filter during cyclic air motion is suggested since the current theory of filtering is based on steady-flow processes. The theoretical dependence of the pressure d...
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Aliya Mukhametdinova, Polina Mikhailova, Elena Kozlova, Tagir Karamov, Anatoly Baluev and Alexey Cheremisin
The experimental and numerical modeling of thermal enhanced oil recovery (EOR) requires a detailed laboratory analysis of core properties influenced by thermal exposure. To acquire the robust knowledge on the change in rock saturation and reservoir prope...
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Eun-Young Park and Jungho Choi
Air-independent propulsion systems have improved the performance and decreased the vulnerability of underwater weapon systems. Reforming systems, however, generates large amounts of water and CO2. The recovery or separation of CO2, a residual gas compone...
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P. C. Mioralli, M. A. B. Da Silva, E. Avallone, P. H. Palota, P. S. G. Natividade
Pág. Page:1 - 15Abstract
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James Large and Apostolos Pesyridis
In this study, the on-going research into the improvement of micro-gas turbine propulsion system performance and the suitability for its application as propulsion systems for small tactical UAVs (<600 kg) is investigated. The study is focused around the ...
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Dongwoo Nam, Miyeon Kwon, Juhea Kim and Bummo Ahn
Harnesses can be used in various applications, such as entertainment, rescue operations, and medical applications. Because users are supported on the harness for a long time, they should feel comfortable wearing the harnesses. However, existing commercia...
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