نتایج جستجو برای: pulsating heat pipe (php)
تعداد نتایج: 222449 فیلتر نتایج به سال:
the use of solar collectors in combination with heat pipes is rapidly growing in recent years.heat pipes, as heat transfer components, have undeniable advantages in comparison with other alternatives. the most important advantage is their high rate of heat transfer at minor temperature differences. although there have been numerous studies on the heat analysis or first thermodynamic analysis of...
Thermal Management in the present issue modern era. The technology heat transfer day by is increased gradually especially electronic device, space applications, hybrid vehicles, solar heater. These are major areas where management successfully research going on Pulsating Heat Pipe a two phase device takes place through sensible and latent heat. This paper gives an over review of pipe design, wo...
In the present study, an unlooped pulating heat pipe has been considered with two liquid slugs and three neighboirng vapor plugs.The governing equations such as momentum, energy and mass equations are solved explicitly except the energy equation of liquid slugs.The aim of the present study is to calculate the entropy generation through the performance of a pulsating heat pipe. Additionally, the...
Pulsating heat pipe(PHP) has many advantages, such as small volume, simple structure, low cost, good transfer performance, it have great potential in the application of refrigeration, aerospace, waste recovery and - grade energy utilization. Based on analysis a large number research results at home abroad, status pulsating pipe technology is summarized this paper, which can provide scientific g...
Demand for high-performance cooling systems is one of the most challenging and virtual issues in the industry and Pulsating heat pipes are effective solutions for this concern. In the present study, the best predictor correlations of flow boiling and condensation are taken into account to model a single turn pulsating heat pipe mathematically. These considerations, result in derivation of more ...
Pulsating heat pipe is an efficient heat exchange device which is being used for cooling and heating recovery. In the present work, we made a closed-loop pulsating heat pipe with six U-turns and we used water in our system. Moreover the use of water-Fe3O4 nanofluid was studied with two different filling ratios 40% and 50% and 1% mass concentration. At the end we calculated heat resistance and h...
Pulsating heat pipe is an efficient heat exchange device which is being used for cooling and heating recovery. In the present work, we made a closed-loop pulsating heat pipe with six U-turns and we used water in our system. Moreover the use of water-Fe3O4 nanofluid was studied with two different filling ratios 40% and 50% and 1% mass concentration. At the end we calculated heat resistance and h...
Vibrations have attracted much attention as an effective method for enhancing heat transfer in pulsating pipes (PHPs). This study mainly investigates and explores the effects of local low-frequency vibrations on starting-up characteristics a PHP. The temperature average temperatures along evaporation section pipe were experimentally scrutinized, with thermal performance, under evaporation, cond...
Developing renewable energy technologies, especially solar technology, is of vital importance to cope with increasing consumption. The existing thermal systems have the disadvantages capturing inefficiently and needing additional pumping power circulate working fluid. A concept a direct absorption pump-free system that combines advantages nanoparticles pulsating heat pipes (PHP) proposed in thi...
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