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首页> 外文会议>7th Biennial Conference on Engineering Systems Design and Analysis 2004(ESDA 2004) vol.1: Advanced Energy Systems; Advanced Heat Transfer in Engineering Systems; ... >COMPRESSOR DRIVEN METAL HYDRIDE COOLING SYSTEMS: SIMULATION AND SYSTEM DYNAMICS
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COMPRESSOR DRIVEN METAL HYDRIDE COOLING SYSTEMS: SIMULATION AND SYSTEM DYNAMICS

机译：压缩机驱动的金属氢化物冷却系统：仿真和系统动力学

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摘要

A comprehensive mathematical model to study the performance parameters of compressor driven metal hydride systems is presented. The dynamics of the compressor and the conditioned space has been taken into account. The model also accommodates the transient nature of the external fins. The effect of size and geometry of the heat exchanger has been given due importance while calculating the external heat transfer coefficient of the metal hydride reactors. A 1 TR system is designed using MmNi_(4.5)Al_(0.5) as the metal hydride and its operating characteristics are studied. The average COP and SP power obtained are around 3.1 and 125 W/kg respectively. It is seen that compressor remains idle for 30% of the time during stable cycling. The problem of large initial compressor loads during cut-in as is encountered in vapour compression systems are not faced in such systems. Moreover the compressor is not overloaded during sudden load changes.
机译：提出了研究压缩机驱动金属氢化物系统性能参数的综合数学模型。已考虑到压缩机和调节空间的动态。该模型还适应了外部散热片的瞬态特性。在计算金属氢化物反应器的外部传热系数时，已充分重视了热交换器的尺寸和几何形状的影响。以MmNi_（4.5）Al_（0.5）为金属氢化物设计了1 TR系统，研究了其工作特性。获得的平均COP和SP功率分别约为3.1 W / kg和125 W / kg。可以看出，在稳定的循环过程中，压缩机保持30％的时间处于闲置状态。在蒸气压缩系统中遇到的在切入期间的大的初始压缩机负荷的问题在这种系统中没有面临。此外，在负载突然变化期间，压缩机不会过载。

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