Development of an advanced solar augmented water heater. Final report Feb 80-May 82
Technical Report
·
OSTI ID:6492045
A program was undertaken to design, construct and test two advanced prototype solar augmented gas water heaters. Computer analyses and experimental work were used to optimize components and characterize performance. The resulting design includes a solar preheat tank, a gas-fired backup tank, the collector loop pump and all operating controls contained in a single cylindrical package. The backup tank is positioned above the solar preheat tank. The connection between the solar and backup tanks is effectively a thermal diode which restricts heat transfer from the backup to the solar tank but allows the backup tank to become an integral part of solar storage whenever the solar tank temperature surpasses the backup tank set point temperature. Solar heat is supplied through a jacketed tank drainback system. Gas heat is supplied through a two phase thermosyphon heat exchanger. Testing showed the system to operate efficiently and reliably.
- Research Organization:
- Altas Corp., Santa Cruz, CA (USA)
- OSTI ID:
- 6492045
- Report Number(s):
- PB-83-119610
- Country of Publication:
- United States
- Language:
- English
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