CAJ | 학술논문

在热辐射功率为50 kW· m-2、气体体积流速为24 L· s-1的条件下，采用可控气氛锥形量热仪分别对黑龙江省4种常见针叶树（红松、樟子松、红皮云杉、兴安落叶松）的燃烧性能进行测定。对比分析各树种（树皮、枯落叶）的燃烧参数，结合各树种（树皮、枯落叶）的含水率，对4个树种的抗火性进行评价。结果表明：红皮云杉树皮和枯落叶在热释放速率、总热释放量、比消光面积和烟产生速率均比较高，火灾性能指数高，说明红皮云杉的抗火性能差；兴安落叶松树皮和树叶的各项燃烧指标都较低，释烟、释热都比较缓慢，火灾性能指数高，其树皮的绝对含水率和风干含水率最高，不易燃烧，说明兴安落叶松抗火性能较强，可以作为阻火优先筛选树种；红松和樟子松的燃烧性介于红皮云杉和兴安落叶松之间。
재열복사공솔위50 kW· m-2、기체체적류속위24 L· s-1적조건하，채용가공기분추형량열의분별대흑룡강성4충상견침협수（홍송、장자송、홍피운삼、흥안락협송）적연소성능진행측정。대비분석각수충（수피、고락협）적연소삼수，결합각수충（수피、고락협）적함수솔，대4개수충적항화성진행평개。결과표명：홍피운삼수피화고락협재열석방속솔、총열석방량、비소광면적화연산생속솔균비교고，화재성능지수고，설명홍피운삼적항화성능차；흥안락협송수피화수협적각항연소지표도교저，석연、석열도비교완만，화재성능지수고，기수피적절대함수솔화풍간함수솔최고，불역연소，설명흥안락협송항화성능교강，가이작위조화우선사선수충；홍송화장자송적연소성개우홍피운삼화흥안락협송지간。
At the heat release rate of 50 kW· m-2 and a gas velocity of 24 L· s-1 , the experiment was conducted to systematical-ly determine the combustibility of Pinus koraiensis, Pinus sylvestris var.mongolica, Picea koraiensis and Larix gmelinii in Heilongjiang Province by controlled atmosphere tapered calorimeter .Through the comparative analysis of the combustion parameters and the moisture content of barks and withered leaves of each species , the fire resistance of four coniferous spe-cies was evaluated .The heat release rate ( HRR) , total heat release ( THR) , specific extinction area and smoke produce rate are higher in the barks and withered leaves of Picea koraiensis, but the fire performance index is high.Therefore, the fire resistant performance is worse for Picea koraiensis.Burning indexes of Lra ix gmelinii is low, including the smoke pro-duction rate, SPR and the heat release rate, but the fire performance index is high.However, the absolute moisture con-tentand relative moisture content of Larix gmelinii bark is the highest, so it is not flammable.Therefore, Larix gmelinii has high fire resistance performance and can be as the fire preventing tree species.The combustibilities of Pinus koraiensis and Pinus sylvestris var.mongolica are between Picea koraiensis and Larix gmelinii.