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Alok K. Mahapatra, Sanjay Sanjay
A computational analysis to investigate the effects of compressor pressure ratio, turbine inlet temperature, ambient relative humidity and ambient temperature on the performance parameters of an air cooled gas turbine cycle with evaporative cooling of in...
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Moo-Yeon Lee, Ho-Seong Lee and Hong-Phil Won
The objective of this study was to investigate the cooling performance characteristics of an electrical air conditioning system using R744 as an alternative of R-134a for a fuel cell electric vehicle. In order to analyze the cooling performance character...
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Moo-Yeon
The objective of this study is to design and briefly investigate the cooling performances of an air conditioning system for a special purpose vehicle under various experimental conditions. An air conditioning system with two parallel refrigeration cycles...
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Xiaozhou Wu, Hao Gao, Mingming Zhao, Jie Gao, Zhen Tian and Xiangli Li
A ceiling cooling system integrated with a mechanical ventilation system has been widely used in modern buildings with large sensible cooling loads due to the high thermal comfort level and large energy efficiency. However, there is a lack of systematic ...
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Xiang Shen, Xu Deng, Barrie Mecrow, Rafal Wrobel and Richard Whalley
The work specifically targets the enhancement of cooling mechanisms in high-power permanent magnet electrical machines, with a direct application in improving the thermal management of stator windings in such devices. This advancement can significantly b...
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Honglian Li, Li Shang, Chengwang Li and Jiaxiang Lei
Climate change and urban heat island effects affect the energy consumption of buildings in urban heat islands. In order to meet the requirements of engineering applications for detailed daily design parameters for air conditioning, the 15-year summer met...
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Ali Dinc, Ali Mamedov, Ertugrul Tolga Duran, Fethi Abbassi, Ibrahim Elbadawy, Kaushik Nag, Mehdi Moayyedian, Mohamed Fayed, Murat Otkur and Yousef Gharbia
In this study, the effect of inlet air cooling on greenhouse gas (GHG) emissions and engine performance for a land-based gas turbine engine was investigated under varying ambient temperatures (15?55 °C). The study aimed to reduce GHG emissions while impr...
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Rolandas Bleizgys, Jonas Cesna, Savelii Kukharets and Oleksandr Medvedskyi
During the operation of the cooling system, a large array of temperature and humidity values was obtained inside and outside the cowshed. On the basis of the obtained data set, mathematical models of temperature, humidity and temperature?humidity indices...
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Jiang Wang, Kai Hu, Kechen Tang, Yubing Xing, Yani Xiao, Yutian Liu, Yonggao Yan and Dongwang Yang
Air conditioning has become a necessity in people?s daily life. The performance of the compressor determines the energy efficiency ratio of this electrical equipment, but the heat generated during the operation of its internal core power components will ...
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Wanwan Wang and Mengmeng Zhao
Personal cooling garments were reported effective in improving thermal comfort in hot environments. In this study, three liquid?air hybrid cooling garments and one control garment were designed and made: aluminum-tube fan cooling (AAL), silicone-tube fan...
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Anna Pacak, Anna Jurga, Korneliusz Sierpowski, Magdalena Panek, Agata Skolowska and Demis Pandelidis
In this study, a multi-stage regenerative-cross-flow dew-point evaporative cooler performance is analyzed and compared to the performance of a regenerative dew-point evaporative cooler. The most beneficial configuration of the proposed exchanger was esta...
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Anatolijs Borodinecs, Kristina Lebedeva, Natalja Sidenko and Aleksejs Prozuments
Evaporative cooling is widely recognized as an energy efficient and environmentally-friendly air conditioning solution, and it has drawn a lot of market interest in recent years. However, this technology is accompanied by several challenges. For instance...
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João M. S. Dias and Vítor A. F. Costa
This paper presents an adsorption cooler (AC) driven by the surplus heat of a solar thermal domestic hot water system to provide cooling to residential buildings. A cylindrical tube adsorber using granular silica gel as adsorbent and water as adsorbate w...
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Xingbo Yao, Shuo Han and Bart Julien Dewancker
China?s rural houses are mostly courtyard-style independent houses. Such houses have certain characteristics, e.g., small mutual influences between houses, strong transformation flexibility, and an easier approach to using the natural environment to deve...
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Jamal Saif, Andrew Wright, Sanober Khattak and Kasem Elfadli
In hot arid climates, air conditioning in the summer dominates energy use in buildings. In Kuwait, energy demand in buildings is dominated by cooling, which also determines the national peak electricity demand. Schools contribute significantly to cooling...
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Sergio Alexander Peñaloza Peña and Julián Ernesto Jaramillo Ibarra
Buildings exhibit a high energy consumption compared with other economic sectors. While percentages vary from country to country, buildings are responsible for approximately 40% of the global energy demand. Most of this is consumed for achieving human th...
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Salmi Mohd Yunus, Savisha Mahalingam, Abreeza Manap, Nurfanizan Mohd Afandi and Meenaloshini Satgunam
Thermal barrier coating (TBC) and cooling air systems are among the technologies that have been introduced and applied in pursuing the extensive development of advanced gas turbine. TBC is used to protect the gas turbine components from the higher operat...
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Hagen Kellermann, Michael Lüdemann, Markus Pohl and Mirko Hornung
Ram air?based thermal management systems (TMS) are investigated herein for the cooling of future hybrid-electric aircraft. The developed TMS model consists of all components required to estimate the impacts of mass, drag, and fuel burn on the aircraft, i...
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Jonathan Ibarra-Bahena, Eduardo Venegas-Reyes, Yuridiana R. Galindo-Luna, Wilfrido Rivera, Rosenberg J. Romero, Antonio Rodríguez-Martínez and Ulises Dehesa-Carrasco
In absorption cooling systems, the desorber is a component that separates the refrigerant fluid from the liquid working mixture, most commonly completed by boiling separation; however, the operation temperature of boiling desorbers is generally higher th...
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Alla Bespalova,Vladimir Lebedev,Olga Frolenkova,Alexey Knysh,Olga Dashkovskaya,Oksana Fayzulina
Pág. 52 - 57
The martensitic transformation interval of some hypoeutectoid, all eutectoid and all hypereutectoid steels covers to a large extent the region of negative temperatures. Due to the fact that the plasma hardening operation is carried out in workshops where...
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