Assessment of the effectiveness of gas path diagnostic schemes

Mathioudakis, K; Kamboukos, Ph

dc.contributor.author	Mathioudakis, K	en
dc.contributor.author	Kamboukos, Ph	en
dc.date.accessioned	2014-03-01T01:23:39Z
dc.date.available	2014-03-01T01:23:39Z
dc.date.issued	2006	en
dc.identifier.issn	0742-4795	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/17065
dc.subject.classification	Engineering, Mechanical	en
dc.subject.other	Algorithms	en
dc.subject.other	Estimation	en
dc.subject.other	Evaluation	en
dc.subject.other	Linear systems	en
dc.subject.other	Matrix algebra	en
dc.subject.other	Gas path diagnostic schemes	en
dc.subject.other	Health parameters	en
dc.subject.other	Measured quantities	en
dc.subject.other	Operating conditions	en
dc.subject.other	Gas turbines	en
dc.subject.other	Algorithms	en
dc.subject.other	Estimation	en
dc.subject.other	Evaluation	en
dc.subject.other	Gas turbines	en
dc.subject.other	Linear systems	en
dc.subject.other	Matrix algebra	en
dc.title	Assessment of the effectiveness of gas path diagnostic schemes	en
heal.type	journalArticle	en
heal.identifier.primary	10.1115/1.1924535	en
heal.identifier.secondary	http://dx.doi.org/10.1115/1.1924535	en
heal.language	English	en
heal.publicationDate	2006	en
heal.abstract	A variety of methods can be used for the diagnosis of faults in gas path components of gas turbines. Problems that are common for diagnostic method implementation are the choice of measured quantities, choice of health parameters, and choice of operating conditions for data retrieval. The present paper introduces some general principles for evaluation of the effectiveness of different diagnostic schemes. They encompass criteria proposed in past publications, while they offer additional possibilities for assessment of diagnostic effectiveness in various situations. The method is based on the evaluation of the behavior of linear systems, which are a good approximation of the nonlinear ones for small deviations and employs the concept of system condition number to formulate criteria. The determination of limits for this number for establishing system condition criteria and quantification of observability is examined on the basis of uncertainty propagation. Sample problems evaluated are: maximizing effectiveness of individual component identification from a multiplicity of available measurements, selection of individual operating points for multipoint applications. Copyright © 2006 by ASME.	en
heal.publisher	ASME-AMER SOC MECHANICAL ENG	en
heal.journalName	Journal of Engineering for Gas Turbines and Power	en
dc.identifier.doi	10.1115/1.1924535	en
dc.identifier.isi	ISI:000234192600008	en
dc.identifier.volume	128	en
dc.identifier.issue	1	en
dc.identifier.spage	57	en
dc.identifier.epage	63	en