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Study of a vapor-compression air-conditioning system for jetliners
(Lappeenranta University of Technology, 2009-11-04)
Most modern passenger aeroplanes use air cycle cooling. A high-speed air cycle is a reliable and light option, but not very efficient. This thesis presents research work done to design a novel vapour cooling cycle for ...
Performance Improvement of Centrifugal Compressor Stage with Pinched Geometry or Vaned Diffuser
(Lappeenranta University of Technology, 2009-10-01)
Centrifugal compressors are widely used for example in refrigeration processes, the oil and gas industry, superchargers, and waste water treatment. In this work, five different vaneless diffusers and six different vaned ...