CAJ | 학술논문

为了探讨不同燃烧条件下树叶烟尘中有机碳( OC)、元素碳( EC)及8种碳组分( OC1~OC4、 POC、 EC1~EC3)的质量分数及分布,利用自制的燃烧采样装置,对10种绿叶进行了阴、明燃两种条件的燃烧,并用热/光碳分析仪对产生的烟尘进行了测定.结果表明,10种绿叶阴燃烟尘中的OC、EC质量分数均值分别为48.9％和4.5％,焦炭char-EC(定义为EC1-POC)的质量分数均值为4.4％.该条件下绿叶燃烧的烟尘( PM)、OC及EC的排放因子均值分别为102.4、50.0和4.7 g·kg-1,烟尘中OC/EC、OC1/OC2及焦炭和炭灰的比值 char-EC/soot-EC (定义为 EC1-POC/EC2＋EC3)的均值分别为11.5、1.9 和48.1.明燃条件下,10种绿叶烟尘中OC、EC及char-EC的质量分数均值分别为44.9％、10.9％和10.7％,PM、 OC及EC的排放因子均值分别为59.2、26.6和6.0 g·kg-1 .10种绿叶明燃烟尘中上述三特征比值的均值分别为4.8、1.1和133.0.树叶阴燃烟尘中OC1质量分数及OC1/OC2值均显著高于明燃,而明燃烟尘中的char-EC质量分数及char-EC/soot-EC显著大于阴燃.树叶烟尘中OC、EC的组成在不同树种及燃烧条件间均体现出一些差异,同时也明显区别于其他生物质烟尘.
위료탐토불동연소조건하수협연진중유궤탄( OC)、원소탄( EC)급8충탄조분( OC1~OC4、 POC、 EC1~EC3)적질량분수급분포,이용자제적연소채양장치,대10충록협진행료음、명연량충조건적연소,병용열/광탄분석의대산생적연진진행료측정.결과표명,10충록협음연연진중적OC、EC질량분수균치분별위48.9％화4.5％,초탄char-EC(정의위EC1-POC)적질량분수균치위4.4％.해조건하록협연소적연진( PM)、OC급EC적배방인자균치분별위102.4、50.0화4.7 g·kg-1,연진중OC/EC、OC1/OC2급초탄화탄회적비치 char-EC/soot-EC (정의위 EC1-POC/EC2＋EC3)적균치분별위11.5、1.9 화48.1.명연조건하,10충록협연진중OC、EC급char-EC적질량분수균치분별위44.9％、10.9％화10.7％,PM、 OC급EC적배방인자균치분별위59.2、26.6화6.0 g·kg-1 .10충록협명연연진중상술삼특정비치적균치분별위4.8、1.1화133.0.수협음연연진중OC1질량분수급OC1/OC2치균현저고우명연,이명연연진중적char-EC질량분수급char-EC/soot-EC현저대우음연.수협연진중OC、EC적조성재불동수충급연소조건간균체현출일사차이,동시야명현구별우기타생물질연진.
A home-made combustion and sampling apparatus was used to burn green leaves under flaming and smoldering conditions and to collect the smoke generated. The smoke was measured with Organic/Elemental Carbon ( OC/EC) Analyzer using IMPROVE thermal-optical reflectance ( TOR) method, to investigate the mass fractions and the distribution of OC, EC and eight carbon fractions in foliar smoke. The results showed that in smoldering condition, the mean OC, EC mass fractions of ten foliar smokes were 48. 9%and 4. 5%, respectively. The mean mass fraction of char-EC ( EC1 - POC ) was 4. 4%. The average emission factors ( EF ) of particulate matters, OC and EC in smoldering foliar smoke were 102. 4 g·kg-1 , 50. 0 g·kg-1 and 4. 7 g·kg-1 , respectively. The mean ratios of OC/EC, OC1/OC2 and char-EC/soot-EC ( EC1 - POC/EC2 + EC3 ) in this condition were 11. 5, 1. 9 and 48. 1, respectively. For the foliar smoke emitted in flaming condition, the mean mass fractions of OC, EC and char-EC were 44. 9%, 10. 9%and 10. 7%, respectively. The average EF of PM, OC and EC in flaming smoke were 59. 2 g·kg-1 , 26. 6 g·kg-1 and 6. 0 g·kg-1 . And the three ratios mentioned above in this condition were 4. 8, 1. 1 and 133. 0, respectively. In conclusion, foliar smoke had higher OC1 mass fractions and OC1/OC2 values in smoldering condition. While flaming foliar smoke had higher char-EC mass fractions and char-EC/soot-EC values. The compositions of OC, EC in foliar smoke varied between different tree species and different combustion conditions. The composition was also obviously different from those of other biomass smoke.