Investigating two configurations of a heat exchanger in an Indirect Heating Integrated Collector Storage Solar Water Heating System (IHICSSWHS)

Paper


Mossad, R. and AL-Khaffajy, M.. 2012. "Investigating two configurations of a heat exchanger in an Indirect Heating Integrated Collector Storage Solar Water Heating System (IHICSSWHS)." Donsion, Manuel and Aguera, Angeles (ed.) International Conference on Renewable Energies and Power Quality (ICREPQ12). Santiago de Compostela, Spain 28 - 30 Mar 2012 Spain.
Paper/Presentation Title

Investigating two configurations of a heat exchanger in an Indirect Heating Integrated Collector Storage Solar Water Heating System (IHICSSWHS)

Presentation TypePaper
AuthorsMossad, R. (Author) and AL-Khaffajy, M. (Author)
EditorsDonsion, Manuel and Aguera, Angeles
Journal or Proceedings TitleRenewable Energy and Power Quality Journal
Number of Pages6
Year2012
Place of PublicationSpain
Web Address (URL) of Paperhttp://www.icrepq.com/RE&PQJ-10-11.html
Conference/EventInternational Conference on Renewable Energies and Power Quality (ICREPQ12)
Event Details
International Conference on Renewable Energies and Power Quality (ICREPQ12)
Event Date
28 to end of 30 Mar 2012
Event Location
Santiago de Compostela, Spain
Abstract

Water heating makes up 14% of domestic energy usage. Due to the environmental impact of energy usage, consumers need to be encouraged to use renewable energy sources such as solar energy. The indirect heating integrated collector storage solar water heater system (IHISSWHS) is one of the most economical systems. The objective of this study was to investigate ways to enhance the performance of this system to encourage many households using it. Two configurations of the system were studied; 16.2 m long double row heat exchanger (HX) and 8.1m and 10.8 m long single row HX. Inside pipe diameters were 10.7mm and 17.1 mm; using two flow rates 500 L/h and 650 L/h. The steady state continuity, momentum and energy equations were numerically solved, using FLUENT software. A standard k-ω turbulent model and surface to surface radiation was used. The system with 10.8 m long single row HX provided higher outlet temperature than the system with 16.2 m double row. Therefore, a significant reduction in cost and power usage can be achieved by using a single row HX. For both flow rates investigated, the larger diameter pipe need about five folds less power to run, with very little sacrifice of outlet temperature.

Keywordsheat exchanger; solar heating; indirect heating; integrated collector
ANZSRC Field of Research 2020401703. Energy generation, conversion and storage (excl. chemical and electrical)
400999. Electronics, sensors and digital hardware not elsewhere classified
401706. Numerical modelling and mechanical characterisation
Public Notes

File reproduced in accordance with the copyright policy of the publisher/author.

Byline AffiliationsDepartment of Mechanical and Mechatronic Engineering
Faculty of Engineering and Surveying
Institution of OriginUniversity of Southern Queensland
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