基于高压级活塞排量的双级压缩制冷循环制冷量计算式

吴集迎

doi:10.3969/j.issn.0253-4339.2006.06.009

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基于高压级活塞排量的双级压缩制冷循环制冷量计算式

更新时间：2025-09-03

- 基于高压级活塞排量的双级压缩制冷循环制冷量计算式
- Formula for Refrigerating Capacity of Two-stage Compression Refrigeration Cycle Based on Piston Displacement of High Pressure Stage
- 制冷学报 2006年27卷第6期页码：39-42
- 作者机构：
  
  集美大学,厦门,361021
- 作者简介：
- 基金信息：
- DOI：10.3969/j.issn.0253-4339.2006.06.009
  中图分类号：
- 纸质出版：2006
- 稿件说明：
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吴集迎. 基于高压级活塞排量的双级压缩制冷循环制冷量计算式[J]. 制冷学报, 2006,27(6):39-42.

Wu Jiying. Formula for Refrigerating Capacity of Two-stage Compression Refrigeration Cycle Based on Piston Displacement of High Pressure Stage[J]. Journal of Refrigeration, 2006, 27(6): 39-42.
吴集迎. 基于高压级活塞排量的双级压缩制冷循环制冷量计算式[J]. 制冷学报, 2006,27(6):39-42. DOI： 10.3969/j.issn.0253-4339.2006.06.009.

Wu Jiying. Formula for Refrigerating Capacity of Two-stage Compression Refrigeration Cycle Based on Piston Displacement of High Pressure Stage[J]. Journal of Refrigeration, 2006, 27(6): 39-42. DOI： 10.3969/j.issn.0253-4339.2006.06.009.

摘要

为了研究双级压缩制冷循环制冷量简化计算方法，分析了高低压级压缩机活塞排量比、容积效率及指示效率等参数对制冷量的影响，以活塞排量比与中间温度的关系式为基础，作一定的简化处理，理论推导出基于高压级活塞排量的双级压缩制冷循环制冷量简化计算式，并通过实例进行了验证。实例计算结果表明：根据简化计算式以及常规方法计算的结果误差较小，吻合度高，推出的双级压缩制冷循环制冷量计算式是准确的。

Abstract

The influences of ratio of piston displacement(RPD)

volumetric efficiency

and indicated efficiency of two-stage compressors on refrigerating capacity were analyzed to find a simplified method to calculate refrigerating capacity of a two-stage compression refrigeration cycle.By some simplifications and the relation of RPD and intermediate temperature

a simplified formula for refrigerating capacity of a two-stage compression refrigeration cycle was developed based on the piston displacement of high pressure stage.The present formula was verified with practical examples.The results show that the value of refrigerating capacity calculated with the present formula agrees well with that with the original method.

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