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双级压缩中间压力与变工况参数关系的理论分析

Release Time:2019-03-10  Hits:

Indexed by: Journal Article

Date of Publication: 2014-12-31

Journal: 流体机械

Included Journals: CSCD、ISTIC、PKU

Volume: 42

Issue: 12

Page Number: 29-33

ISSN: 1005-0329

Key Words: 双级压缩;级间压力;输气量比;中间喷射

Abstract: 基于热力学理论循环,构建双级压缩系统中间压力与系统变工况参数间的关系式。通过分析得出:中间压力随蒸发压力、冷凝压力、输气量比和喷射量的增大均会增大,且中间压力随蒸发压力的变化率显著大于随冷凝压力的变化率。对于中间喷射过程,当喷射量越小,喷射工质比焓越大,喷射过程对中间压力影响越大,且中间压力为蒸发压力和冷凝压力算术均值时,影响最为显著。

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