Derivation of compressor stage characteristics, for accurate overall performance map prediction

Tsalavoutas, A; Stamatis, A; Mathioudakis, K

dc.contributor.author	Tsalavoutas, A	en
dc.contributor.author	Stamatis, A	en
dc.contributor.author	Mathioudakis, K	en
dc.date.accessioned	2014-03-01T02:48:15Z
dc.date.available	2014-03-01T02:48:15Z
dc.date.issued	1994	en
dc.identifier.issn	04021215	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/33670
dc.relation.uri	http://www.scopus.com/inward/record.url?eid=2-s2.0-0027983413&partnerID=40&md5=78f547bbbc91d9ab3ec9650d55956e12	en
dc.subject.other	Failure analysis	en
dc.subject.other	Flow of fluids	en
dc.subject.other	Forecasting	en
dc.subject.other	Geometry	en
dc.subject.other	Mathematical techniques	en
dc.subject.other	Optimization	en
dc.subject.other	Pressure	en
dc.subject.other	Specific heat	en
dc.subject.other	Systems analysis	en
dc.subject.other	Vectors	en
dc.subject.other	Velocity	en
dc.subject.other	Accuracy	en
dc.subject.other	Compressor stage characteristics	en
dc.subject.other	Enthalpy rise	en
dc.subject.other	Flow coefficient	en
dc.subject.other	Multistage compressor map	en
dc.subject.other	Pressure ratio	en
dc.subject.other	Stage stacking	en
dc.subject.other	Temperature rise	en
dc.subject.other	Compressors	en
dc.title	Derivation of compressor stage characteristics, for accurate overall performance map prediction	en
heal.type	conferenceItem	en
heal.publicationDate	1994	en
heal.abstract	In the present paper a method for deriving stage characteristics, which can provide accurate prediction of a multistage compressor map is presented. The method combines optimization techniques with the principles of stage stacking. The stage characteristics are produced by modifying some initial generic ones, until the desired accuracy in the prediction at selected points on the overall map is achieved. There are several reasons why prediction based on the initial stage characteristics can be inaccurate, the following three being the main ones. The first is due to inaccuracy in the representation of the stage characteristics themselves. The second is due to lack of exact knowledge of the geometric data of the various stages. Finally the third reason consists of the 'weak' modelling representation of complex physical phenomena with one dimensional approaches. Therefore, even when the exact stage characteristics are known, this does not guarantee the accurate prediction of the compressor performance. On account of the above, it is preferable to acquire realistic 'effective' stage characteristics which can be used for synthesizing overall compressor characteristics and assessing the effects of stage faults. In this paper, both of these aspects are successfully tackled as demonstrated by applying the method to different test cases.	en
heal.publisher	Publ by ASME, New York, NY, United States	en
heal.journalName	American Society of Mechanical Engineers (Paper)	en
dc.identifier.spage	1	en
dc.identifier.epage	9	en