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JSIR Vol.67 [2008] >
JSIR Vol.67(07) [July 2008] >
| Title: | Performance enhancement of natural circulating storage type |
| Authors: | Bhatt, M Siddhartha |
| Keywords: | Collector efficiency
Electronic control
Flat plate collector
Solar water heater |
| Issue Date: | Jul-2008 |
| Publisher: | CSIR |
| Abstract: | Performance of solar water heater was simulated for one extraction per day (at 18:59 h), two extractions per day
(12:00 & 18:59 h) and hourly extractions (06:00 - 18:59 h). Annual thermal energy output (for 2 m² collector system) was
1181.65, 1354.69 and 1585.89 kWh/m²/year at annual collector-tank system efficiency of 59.61, 68.34 and 80.0 % respectively.
Maximum temperatures reached at 18:59 h was 92.3°C for one extraction mode and 67.1°C for two extraction mode. Performance
can be enhanced (20-30%) through multiple extraction of water over the day by controllable dual tank system and a performance
optimizer for electrical back up. Also, average solar radiation and weather data of Bangalore for 1977-2005 is presented. |
| Page(s): | 549-555 |
| ISSN: | 0022-4456 |
| Source: | JSIR Vol.67(07) [July 2008]
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