A study of natural circulation flow rate through single-ended evacuated tube solar collectors

Indra Budihardjo*, Graham Morrison, Masud Behnia

*Corresponding author for this work

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

5 Citations (Scopus)

Abstract

Water-in-glass evacuated tube solar water heaters have had a large market in China over the last decade but the longterm performance of this type of system has not been systematically evaluated. One of the factors that influence the system performance is the thermal stratification in the tank, and in systems where the collectors are directly connected to the storage tank, the stratification is primarily influenced by the collector flow rate. This paper outlines an experimental program and numerical simulations that were undertaken to develop a correlation of natural circulation flow rate through single-ended evacuated tubes as a function of solar input, tank temperature, collector inclination and tube aspect ratio.

Original languageEnglish
Title of host publicationProceedings of the Solar World Congress 2005: Bringing Water to the World, Including Proceedings of 34th ASES Annual Conference and Proceedings of 30th National Passive Solar Conference
Place of PublicationOxford
PublisherElsevier
Pages1486-1491
Number of pages6
Volume2
ISBN (Print)9781622762637
Publication statusPublished - 2005
Externally publishedYes
EventSolar World Congress 2005: Bringing Water to the World, Including 34th ASES Annual Conference and 30th National Passive Solar Conference - Orlando, FL, United States
Duration: 6 Aug 200512 Aug 2005

Other

OtherSolar World Congress 2005: Bringing Water to the World, Including 34th ASES Annual Conference and 30th National Passive Solar Conference
CountryUnited States
CityOrlando, FL
Period6/08/0512/08/05

Keywords

  • Evacuated tube
  • Flow rate
  • Water-in-glass

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