The choice of geometrical shape of the blades has a considerable effect on aerodynamic performance and flow characteristics in axial compressors. In this paper, the effects of the blades shape on the aerodynamic design characteristics are investigated based on Streamline Curvature Method (SCM). Initially, the Streamline Curvature Method (SCM) is used for designing a two-stage axial compressor. ...

A scroll compressor concept is presented which has a very unique method of eliminating the inherent overturning or tipping moment associated with conventional orbiting scrolls. This design is a high~side compressor with axial compliance. An innovative gas discharge path from the involute effectively reduces the height of the assembly. A special offset is placed in the location of the involute, ...

John P. Elson Mgr. New Products The application of scroll compressor technology to the residential air conditioniong and heat pump markets has generated a variety of compressor design approaches to address special system requirements. This paper >till revie>t both special design needs of this application and unique scroll design concepts used to address these needs. Design concept discussions >...

Abstract The identification of stall inception mechanisms and stability-limiting components in a centrifugal compressor is required for the development effective surge suppression approaches. Part I this two-part paper investigates signature at subsonic, transonic, supersonic inlet tip conditions, II considers relationship with static pressure characteristics, as well impeller leading edge rela...

The decision-making process behind the selection of a gas turbine engine (GT) is crucial and must be made in accordance with economic, environmental, technical requirements. This paper presents relevant exergoeconomic exergoenvironmental analyses for four GT engines different compressor configurations. configurations are identified according to type compressor: axial, axial-centrifugal, two-sta...

We show an application of the method of extremum seeking to the problem of maximizing the pressure rise in an axial flow compressor. First we apply extremum seeking to the Moore–Greitzer model and design a feedback scheme actuated through a bleed valve which simultaneously stabilizes rotating stall and surge and steers the system towards the equilibrium with maximal pressure. Then we implement ...