Optimization of multistage vapour compression systems using genetic algorithms. Part 1: Vapour compression system model
Optimization of multistage vapour compression systems using genetic algorithms. Part 1: Vapour compression system model
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DOI：
10.1002/er.723
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发表时间：
2001-07
影响因子：
4.6
通讯作者：
A. West;S. Sherif
中科院分区：
文献类型：
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作者：
A. West;S. Sherif
蒸汽压缩循环是当今使用的最常见的制冷循环类型。大多数蒸汽压缩系统都很简单，只有四个主要部件：压缩机、冷凝器、膨胀装置和蒸发器。多级蒸汽压缩系统则更为复杂，例如有额外的压缩机、后冷却器、中间冷却器、闪蒸罐和液 - 吸式热交换器。此处进行的研究考虑了121种不同的配置，其冷凝温度和蒸发温度范围从 -50°C到50°C。所使用的制冷剂有氨、R - 22、R - 134a、R - 152a和R - 123。对这些系统进行比较的基础是多级效率。多级效率是一个新术语，定义为多级系统的性能系数与在相同制冷量以及蒸发温度和冷凝温度下运行的一组等效的基本单级系统的总性能系数之比。这里的等效是基于在多级系统所规定的各自温度下实现相同的制冷量来定义的。此处介绍的蒸汽压缩系统模型经过了遗传优化，并得出了有趣的结果。版权所有©2001约翰威立父子有限公司
The vapour compression cycle is the most common type of refrigeration cycle in use today. Most vapour compression systems are simple, having only four major components: a compressor, a condenser, an expansion device and an evaporator. Multistage vapour compression systems are more complex with, for example, extra compressors, aftercoolers, intercoolers, flash tanks and liquid‐to‐suction heat exchangers. The study performed here considers 121 different configurations operating at condensing and evaporating temperatures that range from −50 to 50°C. The refrigerants used are ammonia, R‐22, R‐134a, R‐152a and R‐123. The basis of comparison for the systems is multistage effectiveness. Multistage effectiveness is a novel term defined as the ratio of the coefficient of performance of a multistage system to the collective coefficient of performance of an equivalent group of basic single‐stage systems operating at the same cooling capacities and evaporating and condensing temperatures. Equivalency here is defined on the basis of achieving the same cooling capacity at their respective temperatures as dictated by the multistage systems. The vapour compression system model presented here was put through genetic optimization with interesting results. Copyright © 2001 John Wiley & Sons, Ltd.