Compressor and Modern Process Applications : positive displacement compressors, rotary compressors, as a category, understanding centrifugal process gas compressors, power transmission and advanced bearing technology, centrifugal compressor performance, application considerations, testing, using api-617 as a purchase specification for centrifugal compressors, pressure coefficient or head coefficient, compression processes and efficiencies, natural gas processing industry, general condition monitoring of process gas compressors, magnetic bearing hardware, load capacity, dry gas seal support systems, gas analysis, oil purifier or oil conditioner, coupling function parameters types and configurations.