LABORATORY REFRIGERATION UNIT WITH STEAM-JET COMPRESSOR

Optimisation of Refrigeration Compressor Controllers

Optimisation provides the means of raising or lowering the target suction pressure in a Honeywell Genus® pack controller. Suction pressure optimisation means that suction pressures are raised to the highest level allowed within defined evaporator performance limits. This provides optimum compressor energy consumption while ensuring that the refrigerated merchandise quality is maintained at the ...

The Refrigeration Compressor - The Steps to Maturity

Dynamic Stress of Refrigeration Compressor Reed Valve with Oval Shape

The purpose of this study is both theoretically and experimentally to clarify the dynamic stress of a discharge reed valve with oval shape, and to get fundamental knowledge for the design of this type valve and its related parts. The strain measurements were performed on the strain gauge bonded on the surface of the oval shaped reed valve. The stress and deformation of the valve were also calcu...

The Challenge of Using the Single-Screw Compressor with Steam

Tests are reported on a small (110 mm diameter main rotor) singlescrew air compressor adapted for use with steam. A novel gaterotor design was employed with sliding pads to take up tooth flank clearances. There was also water atomisation into the suction. The test rig allowed preliminary runs to be made on nitrogen at 2990 and 5600 RPM. The best volumetric efficiency was only 57% and this was d...

Fuzzy modeling and identification of intelligent control for refrigeration compressor

Fuzzy modeling and mathematical analysis for the intelligent control of compressor in order to regulate refrigerant mass flow in vapour compression refrigeration system has been described. The compressor speed and delivery pressure are taken as input parameters and mass flow rate is considered as output parameter. To develop an effective model for control design, fuzzy rule base is designed wit...