High-efficiency commercial water heater development. Annual report Nov 80-Dec 81
Technical Report
·
OSTI ID:6952383
The initial development of a condensing water heater for commercial applications has been completed. The selected concept consists of a high-efficiency water heater connected by appropriate plumbing to a stratified-temperature storage tank. An engineering model of the system has been successfully designed, fabricated, and tested. A relatively simple method of promoting stratification has been devised and tested. Preliminary corrosion resistance tests have been conducted with seven candidate materials for the condensing portions of the system. The overall performance of the system has been measured for parametric variations in operating conditions. Recovery efficiencies in excess of 90% and standby-loss rates as low as 0.7%/hr have been demonstrated with the engineering model. On the basis of the test results, it is projected that the system will achieve service efficiencies of 85-87% under actual usage conditions.
- Research Organization:
- Advanced Mechanical Technology, Inc., Newton, MA (USA)
- OSTI ID:
- 6952383
- Report Number(s):
- PB-82-217514
- Country of Publication:
- United States
- Language:
- English
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