Results 251 to 260 of about 800,553 (303)
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The effect of pre-cooling intensity on cooling efficiency and exercise performance
Journal of Sports Sciences, 2010Although 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
Bogerd, N. +4 more
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Cooling Efficiency for Assessing the Cooling Performance of an Effusion Cooled Combustor Liner
Volume 3B: Heat Transfer, 2013Based on experimental results on a liner of a modern direct lean injection combustion chamber using coolant ejection from both effusion cooling holes and a starter film, a method is presented that allows the assessment of the cooling performance of the liner.
Wurm, B. +3 more
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Cooling performance and power consumption analysis of automobile engine cooling system
Energy Sources, Part A: Recovery, Utilization, and Environmental Effects, 2021In order to study the cooling performance of the engine cooling system, as well as investigating the power consumption of the conventional electronic control cooling system with the electronic cont...
Yong Wang +5 more
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Physiological and performance benefits of halftime cooling
Journal of Science and Medicine in Sport, 2005This study examined the effect of a 10-min, halftime cooling application on physiological and psychological parameters known to affect performance. Fourteen volunteers (10 male, 4 female) completed two randomised trials 48 hr to 7 days apart. Trials consisted of a 1-hr cycling protocol: 30 min at 75% VO2max followed by 10 min cooling (application of a ...
Hornery, D. J. +3 more
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Cooling performance of vortex generator
Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy, 2021Present numerical investigation proposes to mitigate the effects of Counter rotating vortex pair (CRVP) by employing a pair of vortex generator. Numerical simulation has been carried out to investigate the effect of placement of vortex generator on the characteristics of film cooling effectiveness.
Nirmal Halder, PK Panigrahi
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The Cooling Index: An Integral Measure of Film Cooling Performance
Heat Transfer in Gas Turbines, 1994Abstract A simple measure of film cooling performance is presented to aid the preliminary design of gas turbines. The Cooling Index, CI, is defined as the reduction in total heat load due to the film cooling divided by the baseline (no film cooling) heat load over a specified area of a turbine blade, ΔQ˙fc/Q˙bl.
Robert P. Campbell, Robert J. Moffat
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Improvement of Engine Cooling Performance by Cooling Airflow Visualization
SAE Technical Paper Series, 1981<div class="htmlview paragraph">This paper describes the use of three dimensional smoke tunnel to improve engine cooling performance. Importance of internal airflow to engine cooling performance is indicated. Ideal shape of engine room and influence on vehicle aerodynamics are included.</div>
T. Hoshino, R. Yoshino, H. Takada
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Cooling performance of an impingement cooling device combined with pins
Journal of Thermal Science, 2005Experimental study and one dimensional model analysis were conducted to investigate cooling performance of an integrated impingement and pin fin cooling device. A typical configuration specimen was made and tested in a large scale low speed closed-looped wind tunnel.
Dongliang Quan +3 more
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Extreme Body Cooling and Psychomotor Performance
Ergonomics, 1968Abstract In a series of experiments on the effect of body cooling ( the lowering of Mean Weighted Skin Temperature (MVVST) while maintaining normal Hand Skin Temperature (HST)) on psychomotor performance, the following results were obtained. (I) Block-stringing (BS) and block-packing (BP) performance decreased linearity across levels of body cooling ...
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High-Performance Radiative Cooling Sunscreen
Nano LettersRadiative cooling is a zero-energy-consumption cooling technology that shows great potential for outdoor human thermal management. To keep human skin comfortable in hot days, we herein develop a radiative cooling (RC) sunscreen that exhibits a low ultraviolet (UV) transmissivity (4.86%), a high solar reflectivity (90.19%), and a high mid-infrared ...
Jiaqi Xu +8 more
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