| 二氧化碳低温制冷循环[火用]分析 |
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| 引用本文： | 钱怀洲.二氧化碳低温制冷循环[火用]分析[J].顺德职业技术学院学报,2010,8(3):8-10. |
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| 作者姓名： | 钱怀洲 |
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| 作者单位： | 中国联合工程公司,能源与环境工程公司,浙江,杭州,310022 |
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| 摘 要： | 利用热力学第二定律针对两种不同双级二氧化碳制冷系统进行火用]分析。低温系统下二氧化碳双级压缩循环的火用]分析表明节流阀的火用]损失所占比例最大，而蒸发器火用]损失所占比例最小。同时模拟计算结果表示低温系统下二氧化碳双级压缩循环存在一个最优的蒸发温度使其循环的火用]效率最大。
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| 关 键 词： | CO2 双级压缩 制冷循环 [火用]分析 |
Analysis of Exergy in Carbon Dioxide Cryogenic Refrigeration Cycle |
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| Authors: | QIAN Huai-zhou |
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| Institution: | QIAN Huai-zhou (Energy and Environment Engineering Company, China United Engineering Corporation, Hangzhou Zhejiang 310022, China) |
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| Abstract: | In this paper, an exergy analysis is performed to investigate the two kinds of carbon dioxide two-stage refrigeration cycles. Variation of each eomponent＇s exergy loss is calculated for different evaporating temperature. The results indicate that exergy loss is the largest for the throttle but minimal for the evaporator. In addition, the simulation results reveal that there is an optimum evaporating temperature to maximize the exergy efficiency. |
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| Keywords: | CO2 |
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