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 publicationAmerican Solar Energy Society - Solar 2006
Subtitle of host publication35th ASES Annual Conf., 31st ASES National Passive Solar Conf., 1st ASES Policy and Marketing Conf., ASME Solar Energy Division Int. Solar Energy Conference
Pages130-135
Number of pages6
StatePublished - Dec 1 2006
EventSolar 2006: Renewable Energy - Key to Climate Recovery, Including 35th ASES Annual Conference, 31st ASES National Passive Solar Conference, 1st ASES Policy and Marketing Conference and ASME Solar Energy Division International Solar Energy Conference - Denver, CO, United States
Duration: Jul 9 2006Jul 13 2006

Publication series

NameAmerican Solar Energy Society - Solar 2006: 35th ASES Annual Conf., 31st ASES National Passive Solar Conf., 1st ASES Policy and Marketing Conf., ASME Solar Energy Division Int. Solar Energy Conference
Volume1

Other

OtherSolar 2006: Renewable Energy - Key to Climate Recovery, Including 35th ASES Annual Conference, 31st ASES National Passive Solar Conference, 1st ASES Policy and Marketing Conference and ASME Solar Energy Division International Solar Energy Conference
CountryUnited States
CityDenver, CO
Period7/9/067/13/06

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