What type of compressor should be used for this operating condition?
Thread Content
What are the disadvantages of screw compressors compared to centrifugal compressors? For a gas flow rate of 30,000 Nm3/h, an inlet pressure of 0.45 MPa (a), a temperature of 40 degrees, and an outlet pressure of 0.6 MPa (a); with the medium being a mixture of methane and nitrogen, what type of compressor should be chosen?
If the outlet pressure is not high and the volume is large, choose a blower.
The pressure increase is not significant; high flow rate required – choose a centrifugal compressor
The compression medium in screw compressors contains oil, making the medium prone to contamination. The centrifuge has high efficiency, and with a dry gas seal in place, the compressed medium remains very clean and is virtually free from contamination. For the operating conditions you mentioned, both axial flow fans and centrifugal compressors can be used; however, axial flow fans offer higher efficiency. Since the pressure difference is not significant, axial flow fans are recommended. But axial flow fans generally have a large flow rate, which might not be sufficient in some cases. Therefore, it is necessary to consult the compressor manufacturer to find out if there are any suitable models of axial flow fans available. Centrifugal compressors can definitely meet the requirements.
The compression medium in screw compressors contains oil, making the medium prone to contamination. The centrifuge has high efficiency, and with a dry gas seal in place, the compressed medium remains very clean and is virtually free from contamination. For the operating conditions you mentioned, both axial flow fans and centrifugal compressors can be used; however, axial flow fans offer higher efficiency. Since the pressure difference is not significant, axial flow fans are recommended. But axial flow fans generally have a large flow rate, which might not be sufficient in some cases. Therefore, it is necessary to consult the compressor manufacturer to find out if there are any suitable models of axial flow fans available. Centrifugal compressors can definitely meet the requirements.
The operating conditions you specified use a centrifugal compressor
The correct approach is to use a centrifugal compressor.