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首页> 外文期刊>Journal of Power and Energy Engineering >Thermal Performance of MEMS-Based Heat Exchanger with Micro-Encapsulated PCM Slurry
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Thermal Performance of MEMS-Based Heat Exchanger with Micro-Encapsulated PCM Slurry

机译:微胶囊PCM浆料的基于MEMS的换热器的热性能

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Latent heat thermal energy storage technique has demonstrate to be a better engineering option mainly due to its benefit of supplying higher energy storage density in a smaller temperature difference between retrieval and storage. For this purpose, a micro electro-mechanical system, MEMS-based heat exchanger with microencapsulated PCM (MEPCM) slurry as cold fluid, has been simulated three dimensionally. This work investigates the influence of using MEPCM-slurry on the temperature of the cold and hot fluids. The MEPCM and water properties have been considered temperature dependent. MEPCM-slurry is used with different volume fractions. The result shows that using MEPCM with 25% volume fraction leads to the improvement in fluids temperatures, that is, for hot fluid the rate of temperature reduction increases up to 23.5% and for cold fluid the rate of temperature rise decreases to 9%, compared to using only water in the MEMS.
机译:潜热热能存储技术已被证明是一种更好的工程选择,主要是因为它的优点是在取回和存储之间的温差较小时提供了更高的能量存储密度。为此,已经在三维上模拟了微机电系统,即基于MEMS的换热器,其具有微囊化PCM(MEPCM)浆料作为冷流体。这项工作研究了使用MEPCM浆料对冷热流体温度的影响。 MEPCM和水的性质被认为是温度依赖性的。 MEPCM浆料用于不同的体积分数。结果表明,使用体积分数为25%的MEPCM可以改善流体温度,也就是说,对于热流体,温度降低率提高到23.5%,对于冷流体,温度升高率降低到9%与仅在MEMS中使用水相比,%。

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