Development for Numerical Thermodynamic Modeling of a Reciprocating Air Compressor in Vehicle Air Suspension System

The research aim of the paper is to develop the numerical thermodynamic model for a reciprocating air compressor of the vehicle air suspension system. According to the reciprocating air compressor structure, volume variation inside the cylinder, intake air temperature, four different periods in each air compression cycle and heat transfer of the heat sink are analyzed in modeling. The numerical model of compression process as well as temperature variation of the air compressor heat sink is constructed in the condition that the air compressor continuously charges air into a tank. By using the thermodynamic model presented, the numerical simulation results indicate that the developed model can correctly describe the working process of the reciprocating air compressor.