Uncertainty reduction in gas turbine performance diagnostics by accounting for humidity effects

Mathioudakis, K; Tsalavoutas, T

dc.contributor.author	Mathioudakis, K	en
dc.contributor.author	Tsalavoutas, T	en
dc.date.accessioned	2014-03-01T01:18:27Z
dc.date.available	2014-03-01T01:18:27Z
dc.date.issued	2002	en
dc.identifier.issn	0742-4795	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/15022
dc.subject	Ambient Temperature	en
dc.subject	Computer Model	en
dc.subject	Condition Assessment	en
dc.subject	Gas Turbine	en
dc.subject.classification	Engineering, Mechanical	en
dc.subject.other	Atmospheric humidity	en
dc.subject.other	Deterioration	en
dc.subject.other	Durability	en
dc.subject.other	Mathematical models	en
dc.subject.other	Fault diagnosis	en
dc.subject.other	Gas turbines	en
dc.subject.other	automation	en
dc.subject.other	gas turbine	en
dc.subject.other	humidity	en
dc.subject.other	monitoring system	en
dc.subject.other	performance assessment	en
dc.title	Uncertainty reduction in gas turbine performance diagnostics by accounting for humidity effects	en
heal.type	journalArticle	en
heal.identifier.primary	10.1115/1.1470485	en
heal.identifier.secondary	http://dx.doi.org/10.1115/1.1470485	en
heal.language	English	en
heal.publicationDate	2002	en
heal.abstract	The paper presents an analysis of the effect of ambient humidity on the performance of industrial gas turbines and examines the impact of humidity on methods used for engine condition assessment and fault diagnostics. First, the way of incorporating the effect of humidity into a computer model of gas turbine performance is described. The model is then used to derive parameters indicative of the ""health"" of a gas turbine and thus diagnose the presence of deterioration or faults. The impact of humidity magnitude on the values of these health parameters is studied and the uncertainty introduced, if humidity is not taken into account, is assessed. It is shown that the magnitude of the effect of humidity depends on ambient conditions and is more severe for higher ambient temperatures. Data from an industrial gas turbine are presented to demonstrate these effects and to show that if humidity is appropriately taken into account, the uncertainty in the estimation of health parameters is reduced.	en
heal.publisher	ASME-AMER SOC MECHANICAL ENG	en
heal.journalName	Journal of Engineering for Gas Turbines and Power	en
dc.identifier.doi	10.1115/1.1470485	en
dc.identifier.isi	ISI:000178636200008	en
dc.identifier.volume	124	en
dc.identifier.issue	4	en
dc.identifier.spage	801	en
dc.identifier.epage	808	en