I want to customize a 34cc vapor injection compressor model in Simscape. How do I go about it? How can I simulate the vapor injection process and the intermediate compression

Hello，I want to customize a 34cc vapor injection compressor model in Simscape to simulate and compare the performance of a vapor injection compressor with a single-stage compressor. However, I currently do not have any relevant experimental data to build a semi-empirical model. Therefore, I plan to simulate by customizing a vapor injection compressor component. Should I use two compressors for the simulation, or should I describe all processes using a single compressor?