Small Oil Free Piston Type Compressor For CO2
نویسنده
چکیده
One remaining issue of CO2 processes are problems in connection with the lubrication oil. The objective of this project is to prove the feasibility of a small oil free semi hermetic piston type CO2-compressor for supercritical heat pump applications with large temperature spans. These processes involve high pressures like 35 bar suction pressure and 80 to 150 bar delivery pressure. A functional compressor model was designed and manufactured, and performance tested over the full range of speed and pressure. Two kinds of cylinder heads from stainless steel and from plastic were tested in order to find out the influence of heat conduction in the cylinders. The tests confirmed the feasibility of the technology for the use in small oil free CO2compressors.
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