Pulse-combustion space-heater field-test-unit design. Topical report, February 1985-January 1986
A 20,000 Btu/hr direct-vent pulse-combustion space heater that operates at steady-state thermal efficiencies in excess of 90% was developed. A new participating manufacturer joined the project in February, 1985 and supplied design requirements that served as the basis for the subsequent development work at A.G.A.L. Due to differences in the manufacturing capabilities of the original and present participating manufacturers, the combustor system and many other components were significantly redesigned. Efforts were also made to incorporate the manufacturer's marketing requirements into the design. An exhaust decoupler is included in the combustor design so that the space heater may be installed at lengths up to 15 feet from the vent termination. The model was designed to be free standing rather than wall mounted with a removable circulating air filter that may be cleaned by the occupant. Humidification of the circulating air is achieved by evaporating condensate collected in a pan at the bottom of the inner cabinet. Results of field testing of the initial prototypes indicated the importance of minimizing the overall sound pressure level of the unit. A tangential blower was incorporated in the design to decrease the contribution of the circulating air-blower noise to the overall sound level.
- Research Organization:
- American Gas Association Labs., Cleveland, OH
- OSTI ID:
- 5718682
- Report Number(s):
- PB-86-190733/XAB
- Country of Publication:
- United States
- Language:
- English
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