Degradation of Emissions Control Performance of Wood Stoves in Crested Butte, CO

摘要

The report discusses the degradation of emissions control performance of211u001ewoodstoves in Crested Butte, Colorado. Four seasons of field monitoring of EPA-211u001ecertified woodstoves in and around Crested Butte has demonstrated some 211u001esignificant failures in emissions control performance. This study examined 211u001ecertified stove performance degradation with two complementary approaches. In the 211u001efirst approach, 12 used stoves in the Crested Butte database, identified with 211u001epoor, inconsistent, or otherwise 'interesting' performance, were inspected, 211u001eremoved from their installations, and then subjected to emissions testing under 211u001esimulated field conditions in a laboratory. These tests examined the stoves and 211u001edemonstrated that only two of them were physically degraded to where emissions 211u001econtrol technology was ineffective. In the second approach, four new stoves were 211u001epurchased and the emissions performance examined under a test matrix of fuel 211u001especies, fuel moisture content, and firing rate.