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A new thermoeconomic method for the location of causes of malfunctions in energy systems
Department of Mechanical Engineering, University of Padova.
2007 (English)In: Journal of energy resources technology, ISSN 0195-0738, E-ISSN 1528-8994, Vol. 129, no 1, p. 1-9Article in journal (Refereed) Published
Abstract [en]

Diagnosis procedures primarily aim at locating the control volumes where anomalies occurred. This is not a simple task since the effects of anomalies generally propagate through the whole system and affect the behavior of several components. Some components may therefore present a reduced efficiency, although they are not sources of operation anomalies, due to nonflat efficiency curves. These induced effects are a big obstacle in the use of thermoeconomic techniques for the search of the origin of the anomalies. On the other hand, the real cause of the alteration of component behavior is the modification of its characteristic curve, due to degradation or failures. According to this concept, a new approach, based on an indicator measuring the alteration of the characteristic curve of the component affected by the operation anomaly, is proposed and applied to a test case power plant

Place, publisher, year, edition, pages
2007. Vol. 129, no 1, p. 1-9
Identifiers
URN: urn:nbn:se:ltu:diva-5379DOI: 10.1115/1.2424960Local ID: 37841aaf-ed32-4328-8fc7-8986d0f020acOAI: oai:DiVA.org:ltu-5379DiVA, id: diva2:978253
Note
Upprättat; 2012; 20120427 (andbra)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2017-11-24Bibliographically approved

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Toffolo, Andrea

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