—Sugar is a sign of smoldering biomass fires “Levoglucosan warns of low-temperature blazes before visible signs” Levoglucosan, an anhydrous sugar formed as a cellulose degradation product, has been used for nearly two decades as an atmospheric aerosol marker of wood burning. At the meeting, Hafiz Abdul Azeem and coworkers at Lund University reported that it could also be a marker for smoldering fires in stored dry biomass for use in energy production. A low-temperature fire inside a stack of biomass can smolder for days, weeks, or even longer without producing flames and thus escape detection. To determine whether levoglucosan can be detected from smoldering fires, the researchers packed cotton into a concrete block and triggered smoldering with heating wires.
by Celia Henry Arnaud |
March 26, 2018