tag:blogger.com,1999:blog-8511144021300330801.post4652917953771524275..comments2024-03-28T06:18:02.329-07:00Comments on Heated Up!: Testing Observations at the Wood Stove DecathlonJohn Ackerlyhttp://www.blogger.com/profile/07548459677032843743noreply@blogger.comBlogger3125tag:blogger.com,1999:blog-8511144021300330801.post-16794266406279853472014-01-11T05:07:28.807-08:002014-01-11T05:07:28.807-08:00Here is a bit more detail about the Testo and also...Here is a bit more detail about the Testo and also the Wohler:<br /><br />http://www.testo.nl/resources/media/global_media/produkte/testo_380/testo-380-0981-2964.pdf<br /><br />https://docs.google.com/file/d/0B4hyjoDxJWx0U1BPZXRVVW11dFE/edit<br /><br />http://www.heatkit.com/research/2013/lopez%20decathlon13.htm<br /><br />http://www.mha-net.org/news-item/wood-stove-design-challenge-meeting-at-brookhaven-national-laboratory/<br /><br />http://www.heatkit.com/research/2013/condar-bnl.htm<br /><br />Norbert Senfhttps://www.blogger.com/profile/13647278008745365126noreply@blogger.comtag:blogger.com,1999:blog-8511144021300330801.post-30560857250201853512014-01-09T14:01:52.574-08:002014-01-09T14:01:52.574-08:00The particulates on the Testo are collected on a g...The particulates on the Testo are collected on a gold impactor plate. There is no data so far on what sizes, or how it compares with collecting particulates on a filter, as the Wohler does.<br /><br />At the Decathlon, the two runs on each appliances were alternated between the Testo and the Wohler, and the data is currently being analyzed at Brookhaven National Laboratory. My guess would be that any variability between the Testo and the Wohler would not show up given the large variability in the cordwood firing, but we will have to wait and see.<br /><br />Recently, some comparison testing was done at Brookhaven, running the two analyzers simultaneously, and that data is also currently being analyzed. <br /><br />From previous studies, 90% of the particles in wood smoke are smaller than PM 1 (1 micron). I doubt if there is much difference between PM 10 and PM 2.5 in wood smoke.<br /><br />During dirtier smoldering combustion (blue smoke from the chimney) the particles will be tar droplets. On pellet stoves and during flaming combustion on regular stoves, the particulate emissions will be much lower, and will be mostly soot particles (EC, or elemental carbon). On very clean stoves, such as commercial scale pellet boilers, the particulates will be mostly minerals and salts (fly ash).<br /><br />What is often lost in the crossfire is the fact that the dirtiest appliances (outdoor boilers) are 100 times dirtier than appliances such as pellet stoves. Not only that, but the emissions themselves are more hazardous because tar contains PAH's (polycyclic aromatic hydrocarbons), which are carcinogens. If we could avoid smoldering fires by outlawing outdoor boilers, mandating the sale of dry wood only (as Washington state does) and teaching proper stove operation, 90% of the pollution problem would be solved.Norbert Senfhttps://www.blogger.com/profile/13647278008745365126noreply@blogger.comtag:blogger.com,1999:blog-8511144021300330801.post-87808381847458052802014-01-09T11:00:06.151-08:002014-01-09T11:00:06.151-08:00Very interesting the variability results ..
Ive b...Very interesting the variability results ..<br /><br />Ive been trying to find out information on the Testo ..Does it differentiate between PM2.5/10 or larger ? What particulate size was monitored during the decathalon tests ?<br /><br />CheersAnonymousnoreply@blogger.com