Analysis of Reciprocating Compressor Valve

Abstract

Abstract: A compressor running at even moderate speeds requires for each valve to open and close over one million times a day. It follows that valve design must bear in mind that it needs to be highly reliable and operate efficiently even in adverse conditions, such as in applications where there are liquids and debris in the gas stream. The fundamental challenge in the design of a compressor valve lies in the opening and closing phase of the valve, where an effort is made to allow for the most desirable dynamic behavior as possible. For instance, lowering the pressure loss across the valve by increasing the flow area leads to a higher possibility of unsuitable dynamic behavior and thus decreases its lifetime.This thesis is devoted to a theoretical study of reciprocating compressor valve dynamics. The analysis of the influence of the valve parameters on its dynamic behavior is also present in this thesis. This study has been undertaken in the compressor valve generally a flap valve and their CAD modelling with analysis of compressor valve equivalent stress, temperature and heat flux.