冷风机的经济优化  

The economic optimization of air coolers

作　　者：何为[1] 曾春利[1] 秦玉青[1] 葛茂泉[1] 

机构地区：[1]上海水产大学食品学院,上海200090

出　　处：《上海水产大学学报》2000年第2期142-146,共5页Journal of Shanghai Fisheries University

摘　　要：本文介绍了结霜工况下冷风机的经济优化设计方法。在设计过程中 ,考虑了翅片表面结霜随着时间增长及其对传热和空气流动阻力的影响 ,肋片节距、除霜间隔时间对冷风机换热性能和年总费用的影响 ,为优化设计过程中蒸发温度、蒸发器的列数和排数的选取提供了理论依据。在以上分析的基础上 ,建立了相应的数学模型 。A design and economic optimization of ammonia air cooler under frosting condition is provided in this paper. The mathematics model has been set up, which based on the analyses of the effect of frost growth on K and △ pa, and effect of spacing of fins and the defrosted time on extended surface heat exchanger performance and the total annual expense. Major problem faced by refrigeration equipment is the deposition and progressive to build up of frost on the heat exchanger surfaces. The simulation calculation programming is designed with C language.

关 键 词：冷风机 经济优化 结霜 年总费用 冷库 蒸发器 

分 类 号：TB657[一般工业技术—制冷工程]