Abstract
The characteristics of a falling film heat exchanger for use on the collector loop heat exchanger in a pumped solar water heater have been assessed, and a TRNSYS model has been developed for evaluating long-term performance. The falling film heat exchanger is based on a conventional gas storage water heater tank with the gas combustion tube converted to a water /water heat exchanger. The annual performance of a falling film solar water heater with in-tank electric boosting was found to be lower than a direct-coupled system. The winter performance of a series gas-boosted system out-performs an in-tank electric boosted system due to improved tank thermal stratification.
Original language | English |
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Title of host publication | ISES Solar World Congress 2007, ISES 2007 |
Place of Publication | Breisgau, German |
Publisher | International Solar Energy Society |
Pages | 2013-2017 |
Number of pages | 5 |
Volume | 3 |
ISBN (Print) | 9781622765447 |
Publication status | Published - 2007 |
Externally published | Yes |
Event | International Solar Energy Society Solar World Congress 2007, ISES 2007 - Beijing, China Duration: 18 Sept 2007 → 21 Sept 2007 |
Other
Other | International Solar Energy Society Solar World Congress 2007, ISES 2007 |
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Country/Territory | China |
City | Beijing |
Period | 18/09/07 → 21/09/07 |