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FIELD PERFORMANCE OF ADVANCED TECHNOLOGY WOODSTOVES IN GLEN FALLS, NY, 1988-89 - VOLUME II - TECHNICAL APPENDICES
Citation:
Barnett, S. G. FIELD PERFORMANCE OF ADVANCED TECHNOLOGY WOODSTOVES IN GLEN FALLS, NY, 1988-89 - VOLUME II - TECHNICAL APPENDICES. U.S. Environmental Protection Agency, Washington, D.C., EPA/600/7-90/019b (NTIS PB91-125658), 1990.
Impact/Purpose:
Information.
Description:
The report gives results of an evaluation of particulate emission trends for three models of catalytic and two models of non- catalytic woodstoves under "in-home" burning conditions during the 1988-89 heating season in Glens Falls, NY. The results (averaging 9.4 g/h and 9.4 g/kg) showed about a 55% reduction in emissions compared to conventional woodstoves and demonstrate that the emissions performance of new woodstove technologies has improved compared to that of stoves in earlier field studies. Emissions for the non-catalytic stoves were about 50-55% and for the best performing catalytic stove about 80% lower than the conventional wood-stoves. Two of the catalytic models displayed elevated emissions; in one, a significant degradation trend developed; and in the other, emissions were elevated throughout the test period. Leaky bypass systems appear to be a major cause, as well as catalyst deterioration resulting from lack of flame shielding and inadequate air/fuel mixing. Field emissions exceed laboratory certification values on average by 2.5 times, but this ratio varies considerably among the stove models. Causes of these discrepancies include quality control problems with tolerances in production stoves, emissions deterioration over time, and inadequacies in stove design introduced as the result of attempts to design stoves for conditions other than met in the field.