Influence of different ventilation on gaseous emission and particulate matter of a biomass semi-gasifier stove

Abstract. With the continuous improvement of people's living conditions, serious environmental issues are attracting more and more attention. Recently indoor air pollution is recognized as one of the top five environmental risks to human health. A typical Chinese semi-gasifier biomass stove with chimney was tested with different ventilate in accordance with the latest available standard. The fuel used during tests is biomass pellets which were made of corn straw. According to the standard, thermal efficiency and cooking power were reported. Gaseous emissions including CO, NO, NO_X and particulate matter size distribution were monitored under four different air supply conditions. They were: provide nature draft primary air and no secondary air, provide nature draft primary air and nature draft secondary air, provide forced primary air and nature draft secondary air, provide nature draft primary air and forced secondary air. The authors want to know how ventilate influence the thermal performance and emission performance, especially the emission performance.