Creation of a model for the working processes computation and studying efficiency of the compact two-chamber refrigeration machines

The paper presents a developed design of the low-speed machine with two compression chambers ensuring production capacity of more than 10 nm3/h. Gas pressure in the preliminary compression chamber increases by up to 15 times, and the cylinder diameter significantly exceeds the previously recommended parameters. Additional gas compression to the high pressures is provided in the second chamber with a smaller diameter, where heat is removed more intensively. The obtained performance values indicate a prospect of the low-speed machines to reach the medium-performance compressor class. Further research would be aimed at checking adequacy of the created mathematical model, conducting experiments with various gases and selecting the optimal law of motion for the output links.
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