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离心式和往复式压缩机的工作效率特性

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中文译文
离心式和往复式压缩机的工作效率特性(中文4000字,英文2400字)
         Rainer Kurz , Bernhard Winkelmann , and Saeid Mokhatab
往复式压缩机和离心式压缩机具有不同的工作特性,而且关于效率的定义也不同。本文提供了一个公平的比较准则,得到了对于两种类型机器普遍适用的效率定义。这个比较基于用户最感兴趣的要求提出的。此外,对于管道的工作环境影响和在不同负载水平的影响给出了评估。
乍一看,计算任何类型的压缩效率看似是很简单的:比较理想压缩过程和实际压缩过程的工作效率。难点在于正确定义适当的系统边界,包括与之相关的压缩过程的损失。除非这些边界是恰好定义的,否则离心式和往复式压缩机的比较就变得有缺陷了。

英文原文
Efficiency And Operating Characteristics Of Centrifugal And Reciprocating Compressors
By Rainer Kurz, Bernhard Winkelmann, and Saeid iVIokhatab
  Reciprocating compressors and centrifugal compressors have different operating characteristics and use different eificiency definitions. This article provides guidelines for an equitable comparison, resulting in a universal efficiency definition for both types of machines. The comparison is based on the requirements in which a user is ultimately interested. Further, the impact of actual pipeline operating conditions and the impact on efficiency at different load levels is evaluated.
  At first glance, calculating the efficiency for any type of compression seems to be straightforward: comparing the work required of an ideal compression process with the work required of an actual compression process. The difficulty is correctly defining appropriate system boundaries that include losses associated with the compression process. Unless these boundaries are appropriately defined, comparisons between centrifugal and reciprocating compressors become flawed.

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