Comparison between a crank-drive reciprocating compressor and a novel oil-free linear compressor

Oil-Free Screw Compressor or Oil-Injected Screw Compressor?

Atlas Copco China 1HK Ltd. has taken the biggest one in the Chinese compressor market shares. 1. The description of two types of screw compressor 2. The main applications of air compressor in China 3. Chinese customers' choices mainly upon air quality requirement 4. We promote oil-free compressor for customer's economy 5. Unique attraction of oil-injected compressor As we know, compressors may ...

Thermal Analysis of a Hermetic Reciprocating Compressor

The development of more efficient hermetic compressors for refrigeration involves a sound analysis of the heat exchanges inside the machine to evaluate the interaction among compressor structure, flow characteristics, refrigerant properties and operative conditions. This work presents a computational procedure for the steady-state thermal analysis of a hermetic reciprocating compressor. The mac...

A Large Modern High Speed Reciprocating Compressor

The Grasso RC12, introduced early 1996, belongs to the largest reciprocating compressors in industrial refrigeration. The high-speed variant, the RC12E, has been introduced in Europe by the end of 1997: the ammonia variant runs at 1500 rpm, whilst the halocarbon variant has a maximum speed of 1200 rpm. The design philosophy will be illustrated focusing on the valve design. The compressor housin...

EER Improvement on a Reciprocating Hermetic Compressor

Performance Prediction of Reciprocating Compressor

The technique of the modeling and analysis procedures of reciprocating compressor is described which predict the basic performance of the compressor, compute the pressure pulsations in cylinder and suction line and simulate valve motions. The polytropic process assumption was used for modeling cylinder thermodynamic process and four-pole transfer matrix for gas pulsations and spring-mass model ...