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首页> 外文期刊>International journal of hydrogen energy >Thermodynamic analysis and optimization of compressor-driven metal hydride cooling systems
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Thermodynamic analysis and optimization of compressor-driven metal hydride cooling systems

机译：压缩机驱动的金属氢化物冷却系统的热力学分析和优化

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摘要

A novel thermodynamic model for performance evaluation of compressor-driven metal hydride cooling systems is presented. This model takes into account the effect of external heat transfer in the reactors and reaction kinetics of metal hydride. An evaluation of available metal hydrides for the above system is conducted and of the four metal hydrides studied, MmNi_(4.5)Al_(0.5) seems to be the best available option for a given compressor and reactor geometry. Once heat transfer is taken care of, reaction kinetics seems to be the major factor that can hinder the commercial applicability of these systems. Hydrides with a higher slope factor are found to be preferable for compressor-driven systems, provided COP and operating pressures do not create design limitations. There exists an optimum heat of formation for which COP is maximum. The model presented here can be used in association with other theoretical models to predict the ideal alloy combination in metal hydrides for different cooling applications.
机译：提出了一种新型的热力学模型，用于评估压缩机驱动的金属氢化物冷却系统的性能。该模型考虑了反应器中外部传热的影响以及金属氢化物的反应动力学。对上述系统的可用金属氢化物进行了评估，在所研究的四种金属氢化物中，对于给定的压缩机和反应堆几何形状，MmNi_（4.5）Al_（0.5）似乎是最佳的可用选择。一旦考虑到热传递，反应动力学似乎是阻碍这些系统商业应用的主要因素。如果COP和工作压力不产生设计限制，则发现斜率较高的氢化物更适合压缩机驱动的系统。存在一个最佳的地层热，COP最高。此处介绍的模型可以与其他理论模型一起使用，以预测针对不同冷却应用的金属氢化物中的理想合金组合。

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