Description
A series of six DVDs from the International Institute of Ammonia Refrigeration designed to give the viewer an in-depth understanding of how ammonia refrigeration works, and how to operate a system safely. Each DVD consists of a series of lessons and review questions included in accompanying printed material. Module Four discusses the operation of commonly used compressors: the reciprocating compressor, the rotary vane compressor, and the screw compressor. Also looks at volumetric efficiency, swept volume and compression ratio.
