This collection of papers from a prestigious IMechE conference looks at the latest innovations and techniques from experts in the field of rotating machinery from industry and academia. Reflecting latest developments in air, gas, refrigeration and related systems, these conference transactions will be of vital importance to all those equipment manufacturers, suppliers, users, and research organizations who wish to be well informed of developments and advances in this important field of engineering.Topics covered: Scroll CompressorsRefrigerationEnvironmental IssuesScrew CompressorsReciprocating CompressorsExpandersCentrifugal CompressorsNovel DesignsLinear CompressorsNumerical ModellingOperation and Maintenance