Theoretical study on a solar collector loop during stagnation

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Abstract

A mathematical model simulating the stagnation behavior of a pressurized solar collector loop with solar collectors with a good emptying behavior is developed. Based on the pre-pressure of the expansion vessel, the system filling pressure of the solar collector loop and the design of the solar collector loop, the mass of the fluid flowing into the pressurized expansion vessel and the pressures at the top part and at the bottom part of the solar collector loop during stagnation for the solar collector loop are calculated. The theoretically calculated results are compared with experimental results. There is a good agreement between calculations and measurements. The developed simulation model is therefore suitable to determine the behavior of solar collector loops during stagnation.
Original languageEnglish
Title of host publicationEuroSun 2010. Book of proceedings : International Conference on Solar Heating, Cooling and Buildings
Place of PublicationGraz, Austria
Publication date2010
ISBN (Print)978-3-901425-13-4
Publication statusPublished - 2010
EventInternational Conference on Solar Heating, Cooling and Buildings - Graz, Austria
Duration: 28 Sep 20101 Oct 2010
http://www.eurosun2010.org/cms/

Conference

ConferenceInternational Conference on Solar Heating, Cooling and Buildings
CountryAustria
CityGraz
Period28/09/201001/10/2010
Internet address

Keywords

  • Solar collector loop
  • Stagnation

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