Compressor Capacity Control The compressor in a refrigeration system is normally selected to be able to satisfy the highest possible cooling load. However, the cooling load during normal operation is ...

Editor’s Note: This is the second installment of a two-part series. Part One of this article provided some background on screw compressors, then discussed the various components and capacity control ...

What are your thoughts on capacity control for ammonia screw compressors? Do you prefer slide valves, VFDs, or a combination of both? I believe that the use of VFDs help reduce slide valve wear and ...