دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: 1. the ratio of the absolute discharge pressure from a compressor to the absolute intake pressure. 2. the ratio of the volume of an engine cylinder before compression to its volume after compression. For example, if a cylinder volume of ]0 cubic inches (10 cubic centimetres) is compressed into] cubic inch (] cubic centimetre),the compression ratio is ]0:].

the ratio of the absolute outlet pressure of a compressor to the absolute inlet pressure.