A model of antioxident loss in polymer tubes: Prediction of life for SDHW

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The successful use of polymer components in solar hot water systems requires an understanding and method of predicting the degradation of the material in the operating environment. In the present work, the degradation of polymer tubes exposed to potable water is studied. The relevant degradation mechanism is oxidation. Degradation from oxidation can be delayed through the use of antioxidant additives. However, once the antioxidants have been depleted, the oxidation of the polymer and subsequent loss of mechanical integrity occur rapidly. A model of the rate of antioxidant loss is developed for polyolefins. A parametric study of the effect of tube geometry is presented.

Original languageEnglish (US)
Title of host publicationProceedings of the ASME International Solar Energy Conference - Solar Engineering 2006
StatePublished - Dec 1 2006
EventASME International Solar Energy Conference - Solar Engineering 2006 - Denver, CO, United States
Duration: Jul 9 2006Jul 13 2006

Publication series

NameInternational Solar Energy Conference
Volume2006
ISSN (Print)1546-8402

Conference

ConferenceASME International Solar Energy Conference - Solar Engineering 2006
CountryUnited States
CityDenver, CO
Period7/9/067/13/06

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