基于火用分析的水产品连续冻结隧道的优化研究  

Optimization of Cryogenic Tunnel Freezer for Freezing Aquatic Products Based on Exergy Analysis

作　　者：曾冬琪[1] 谢爱霞[1] 叶盛权[2] 

机构地区：[1]广东海洋大学工程学院,广东湛江524025 [2]广东海洋大学食品科技学院,广东湛江524025

出　　处：《安徽农业科学》2010年第34期19588-19590,共3页Journal of Anhui Agricultural Sciences

基　　金：广东省教育部产学研结合项目(2007B090400113)

摘　　要：在蒸发温度、冷凝温度和中间温度变化的条件下,分别对水产品连续冻结隧道中的氨双级蒸汽压缩系统进行了能量分析和火用分析。结果表明,提高蒸发温度和降低冷凝温度是提高系统制冷系数和火用效率,减少火用损失率的有效方法,系统存在最佳中间温度,使系统达到最佳节能效果。Under the conditions of variational evaporator temperature,condensing temperature,and intermediate temperature,a detailed thermodynamics and exergy analysis were respectively conducted on an actual ammonia two-stage vapor compression refrigeration cycle in the cryogenic tunnel freezers.The results indicated that,an effective way to improve the system COP and exergy efficiency was to improve the evaporator temperature and decrease the condensing temperature,and there was optimum intermediate temperature for the system to achieve maximum exergetic efficiency.

关 键 词：食品连续冻结隧道 制冷系数 火用效率 火用损失率 

分 类 号：TB61[一般工业技术—制冷工程]