MATEC Web Conf.
Volume 245, 2018International Scientific Conference on Energy, Environmental and Construction Engineering (EECE-2018)
|Number of page(s)||9|
|Section||Development of New Perspective Technological Products|
|Published online||05 December 2018|
Influence of compressible medium on the operation of a reciprocating compressor
Peter the Great St. Petersburg Polytechnic University, Joint Institute of Science and Technology, Scientific-Research Laboratory “Gas dynamics of turbomachines”, Polytechnicheskaya 29, Saint-Petersburg, 195251 Russian Federation
2 JSC Scientific Production Association “Compressor”, Bol’shoy Sampsoniyevskiy Prospekt, 64, Sankt-Peterburg, 194044 Russian Federation
* Corresponding author: firstname.lastname@example.org
A reciprocating compressor is a volumetric machine. Consequently, the motion of gas in communications always is of non-stationary or pulsating character. The diagram of oscillatory processes in communications is complex because a number of factors affect the nature of the flow: cyclical gas supply, valve dynamics, change in the flow area of pipelines, variable cylinder volume, variable piston velocity, temperature gradients, etc. The analysis of non-stationary processes in the suction stage of a household refrigeration compressor is considered. A mathematical model of the flow of real gas in the suction system of a household refrigeration piston compressor has been developed. We performed a calculation study of the motion diagram of the suction valve, gas velocities in the suction pipe and pressure changes in the suction chamber. The results of a reciprocating compressor study while compressing various gases are given. The influence of the properties of refrigerants on the operation of the compressor and the suction system is considered.
© The Authors, published by EDP Sciences, 2018
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