It does not have a variable speed drive. They're GE 450HP, 3650 RPM electric motors. They are not run on a split range suction controller. Each compressor is controlled via PLC to meet a certain suction pressure set point, which can be changed individually by the plant operator at any time. I'm...
Thanks for the reply David. This refrigeration system is actually used as a pre-chiller in a small scale LNG plant. Suction pressure is set manually via plant computer and the slide valve loads and unloads accordingly to meet the suction pressure. The load we put through the tube side of the...
Hello,
I have a compressor I'm having some issues with. It's a Frick oil flooded screw compressor in Ethane/Ethylene mixed refrigerant service. I actually have two of them running in parallel on the same system. These are variable Vi machines and while I'm familiar with how the variable Vi...
