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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

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Indexed by:期刊论文

Date of Publication:2014-12-31

Journal:流体机械

Included Journals:PKU、ISTIC、CSCD

Volume:42

Issue:12

Page Number:29-33

ISSN No.: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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