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 |
|---|---|
| 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 |
|---|---|
| Country/Territory | China |
| City | Beijing |
| Period | 18/09/07 → 21/09/07 |