نتایج جستجو برای: cooling performance

تعداد نتایج: 1097035  

ژورنال: ارگونومی 2014
قره بائی, سمیه, مهکی, بهزاد, دهقان, حبیب الله , ولی پور, فیروز,

Abstract Background: Heat exposure is one of the harmful agents at work environments. Workers in high temperature environments are susceptible to heat strain. The purpose of this study was to evaluate the performance of Iranian cooling vests containing phase change material in hot and humid conditions in the Persian Gulf. Materials and Methods: This interventional study carried out on 6 subj...

Journal: :ACS applied electronic materials 2021

Stretchable electronic devices are known as elastic electronics or circuits. They typically built by deposition embedding of and circuits onto stretchable substrates, which can sustain large strains without failure. The research on this emerging technology has focused the development components based insulators, conductors, semiconductors to overcome inherent difficulties generating mechanicall...

The application of phase change material (PCM) for energy conservation purposes in the residential buildings was investigated in the present study. Two types of building in terms of materials as the lightweight building (LWB) and heavyweight building (HWB) located in a high cooling load demanding region of Iran were considered for the study. Different types of PCM from organic and inorganic cat...

2014
Ahmed Elsayed Saad Mahmoud Amr Elshaer James Bowen

With the availability of waste heat from various power stations and industrial processes, adsorption cooling systems offer advantages compared to mechanical vapour compression systems. The dynamic modelling of such system is very important as it predicts the system performance with time in terms of bed temperature, pressure, cooling capacity and coefficient of performance. Therefore there is a ...

Solar energy is the highly recognized energy source, capable of fulfilling the world’s future energy demands. The solar photovoltaic technology involves the unmediated transformation of sunlight into electricity. A little fraction is converted into electricity and the remaining gets exhausted as unused heat. This results in an increase in the operating temperature of the PV Panel. The conversio...

Journal: :Journal of sports sciences 2010
Nina Bogerd Claudio Perret Cornelis P Bogerd René M Rossi Hein A M Daanen

Although pre-cooling is known to enhance exercise performance, the optimal cooling intensity is unknown. We hypothesized that mild cooling opposed to strong cooling circumvents skin vasoconstriction and thermogenesis, and thus improves cooling efficiency reflected in improved time to exhaustion. Eight males undertook three randomized trials, consisting of a pre-cooling and an exercise session. ...

Journal: :International journal of sports physiology and performance 2013
Wigand Poppendieck Oliver Faude Melissa Wegmann Tim Meyer

PURPOSE Cooling after exercise has been investigated as a method to improve recovery during intensive training or competition periods. As many studies have included untrained subjects, the transfer of those results to trained athletes is questionable. METHODS Therefore, the authors conducted a literature search and located 21 peer-reviewed randomized controlled trials addressing the effects o...

Journal: :journal of mechanical research and application 2010
navid bozorgan

since the energy analysis considers the quantity of energy, it cannot show the performance of the cooling tower. therefore, in order to optimize the performance of the tower and also the process which the cooling tower is a part of it, it is necessary to analyze the energy and exergy of the tower simultaneously. in this paper, the energy and exergy of one of the cooling towers of khuzestan stee...

Journal: :علوم کاربردی و محاسباتی در مکانیک 0
مهدی مهدوی خواه مجتبی ماموریان حمید نیازمند

one of the cooling systems that has received considerable attentions in recent years is the adsorption chiller, which works based on the adsorption and desorption of a working fluid in a solid porous bed. different parameters such as fin height directly affect the bed heat and mass transfer processes, and therefore, the performance of the adsorption chillers. in the present study a numerical mo...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید