便携式蒸汽压缩制冷系统的熵产分析

基金项目: 国家重点基础研究发展计划(973计划)资助(G2000026304)

Entropy generation analysis of portable vapor compression refrigeration system

Key Laboratory of Beijing Municipality on Heat Transfer and Energy Conversion, Key Laboratory of the Ministry of Education on Enhanced Heat Transfer andEnergy Conversion, College of Environmental and Energy Engineering, Beijing University of Technology, Beijing 100022, China

摘要: 介绍了基于微电子机械系统(MEMS)所研制的便携式制冷系统, 并分析了随着制冷系统尺寸的减小系统各个部件熵产率的变化情况.尽管没有对熵产做定量评价, 但是可以得出压缩机是便携式制冷系统中最难微型化的部件, 便携式制冷系统成功运转的关键就是微型压缩机的研制, 而且必须尽量减少蒸发器的冷量损失.
- 便携式制冷系统 /
- 旋转压缩机 /
- 微型化 /
- 熵产
Abstract: This paper introduceds a portable refrigeration system based on development of micro electro-mechanical systems(MEMS) technologies,and describes how the entropy generation changes at each component in a vapor compression refrigeration system as the system scale is decreased.Although the quantitative evaluation of the entropy generation is not made here,it is clear that the micro compressor is the most difficult component to be miniaturized in a portable refrigeration system.If a portable vapor compression refrigeration system is expected to be successfully operated,a great deal of efforts must be made to develop a workable micro compressor and to minimize the refrigerating output loss of the evaporator.
- portable refrigeration system /
- rotary compressor /
- miniaturization /
- entropy generation

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