The glazing temperature measurement in solar stills

dc.contributor.author	Τσιλιγγίρης, Παναγιώτης	el
dc.date.accessioned	2015-06-28T15:25:05Z
dc.date.available	2015-06-28T15:25:05Z
dc.date.issued	2015-06-28
dc.identifier.uri	http://hdl.handle.net/11400/19993
dc.rights	Αναφορά Δημιουργού-Μη Εμπορική Χρήση-Όχι Παράγωγα Έργα 3.0 Ηνωμένες Πολιτείες	*
dc.rights.uri	http://creativecommons.org/licenses/by-nc-nd/3.0/us/	*
dc.source	http://www.sciencedirect.com	en
dc.subject	Bond conductance
dc.subject	Solar distillation
dc.subject	Ηλιακή απόσταξη
dc.subject	Αγωγιμότητα δεσμών
dc.title	The glazing temperature measurement in solar stills	en
heal.type	journalArticle
heal.secondaryTitle	errors and implications on performance evaluation	en
heal.classification	Technology
heal.classification	Energy
heal.classification	Τεχνολογία
heal.classification	Ενέργεια
heal.classificationURI	http://id.loc.gov/authorities/subjects/sh85133147
heal.classificationURI	http://id.loc.gov/authorities/names/n42028321
heal.classificationURI	N/A-Τεχνολογία
heal.classificationURI	N/A-Ενέργεια
heal.identifier.secondary	doi:10.1016/j.apenergy.2011.06.036
heal.language	en
heal.access	campus
heal.publicationDate	2011-12
heal.bibliographicCitation	Tsilingiris, P. (2011) The glazing temperature measurement in solar stills – Errors and implications on performance evaluation. "Applied Energy", 88 (12), p.4936-4944	en
heal.abstract	Although the brine temperature measurement in solar stills would be more or less conventional, the precise condensing surface temperature measurement, appears to present a significant difficulty to measure. In the present investigation, an analysis is developed aiming to underline the parameters affecting the glazing surface temperature measurement and a series of field measurements are presented, aiming to identify and evaluate the errors associated to the measurement of this crucial physical quantity. It is derived that among other reasons the surface temperature measurement accuracy may strongly be degraded owing to the sensor tip overheating due to the radiation absorption, as well as to the development of poor bond conductance between sensor bead and glazing surface. It may also be degraded owing to the temperature drop across the glazing thickness and the non-uniform temperature distribution over the entire condensing surface area, something that makes the selection of the appropriate location of the particular temperature transducer necessary. Based on the derived measurements, an order of magnitude analysis is employed for the approximate evaluation of error range in the condensing surface temperature measurement. This, which depending on specific conditions was found to vary between about 1 and 2 °C, was employed to demonstrate the implications and approximate conditions under which its effect could become excessively high in ordinary solar still investigations	en
heal.journalName	Applied Energy	en
heal.journalType	peer-reviewed
heal.fullTextAvailability	true