Modeling And Validation Of A Multi-Evaporator Vapor Compression Cycle Subject To Non-Uniform Loading In Transport Refrigeration Applications

This paper describes a multi-evaporator vapor compression model capable of simulating the dynamic behaviour of transport refrigeration systems. A discrete multi-zone control volume approach is utilised for modelling the condenser and evaporators. All other major refrigeration components including compressor, expansion valves, receiver, pressure-regulating valves are modeled using time-dependent differential equations. The model is implemented using MATLAB. Component models are validated individually and are then combined to give an overall system model. Overall model predictions are further validated using experimental data obtained from a purpose-built multi-evaporator test rig for transient and non-uniform operating conditions.