Modelling of leakages in rotary twin-screw compressor

Modelling of Screw Compressor Capacity Control

The main methods of screw compressor capacity control are shaft speed variation, suction throttling and variation of the suction volume. These have been analysed and are compared by the use of a standard mathematical model which has been adapted for this purpose. The analysis is based on a .screw compres.sor with 5/6 and 5/7 '' N" rotor profiles for air and refrigeration compre.ssors. The resul...

Leakage Experiments On A Running Twin Screw Compressor

Sequential calculation of torque in procedure of twin screw extrusion

The drug making resreach has accentuated on extrusion technology for a long time. The advance of drug bioavailibility, bead manufacturing and granulation is assured by extrusion procedures. There are also diverse effects in resereches with respect to the use of process understanging as a tool in quality management. Many initiatives of FDA such as PAT and QBD are getting accepted. In this survey...

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 ...

Efficiency Improvement in Rotary Compressor

This paper presents how we improved the efficiency in rotary compressor. At first, we made effort to estimate the power losses in the compressor, to analyze the operating conditions of the bearing and to calculate the performance of the compressor. Next, the temperature in housing and pressure in cylinder were measured in real compressors in order to obtain the data on the internal conditions o...