کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5753158 1620315 2017 15 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Smoke emissions due to burning of green waste in the Mediterranean area: Influence of fuel moisture content and fuel mass
ترجمه فارسی عنوان
انتشار گازهای دودی ناشی از سوختن زباله های سبز در منطقه دریای مدیترانه: تاثیر رطوبت سوخت و جرم سوخت
کلمات کلیدی
سوختن زیست توده، انتشار سیگنال، فاکتور انتشار، مقدار رطوبت سوخت، جرم سوخت، نرخ آزاد شدن حرارت،
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات علم هواشناسی
چکیده انگلیسی


- Fuel moisture content lowers the combustion efficiency and heat release rate.
- Burning phase influence on emissions cannot be determined by EFs vs. MCE.
- Increasing mass raises the EFs of CO and CH4 but reduces EFs of CO2 and NOx.
- Increasing fuel moisture content rises the EFs of CO, CH4, NH3, and NMOC.

The aim of this study was to investigate emission characteristics in relation to differences in fuel moisture content (FMC) and initial dry mass. For this purpose, branches and twigs with leaves of Cistus monspeliensis were burned in a Large Scale Heat Release apparatus coupled to a Fourier Transform Infrared Spectrometer. A smoke analysis was conducted and the results highlighted the presence of CO2, H2O, CO, CH4, NO, NO2, NH3, SO2, and non-methane organic compounds (NMOC). CO2, NO, and NO2 species are mainly released during flaming combustion, whereas CO, CH4, NH3, and NMOC are emitted during both flaming and smoldering combustion. The emission of these compounds during flaming combustion is due to a rich fuel to air mixture, leading to incomplete combustion. The fuel moisture content and initial dry mass influence the flame residence time, the duration of smoldering combustion, the combustion efficiency, and the emission factors. By increasing the initial dry mass, the emission factors of NO, NO2, and CO2 decrease, whereas those of CO and CH4 increase. The increase of FMC induces an increase of the emission factors of CO, CH4, NH3, NMOC, and aerosols, and a decrease of those of CO2, NO, and NO2. Increasing fuel moisture content reduces fuel consumption, duration of smoldering, and peak heat release rate, but simultaneously increases the duration of propagation within the packed bed, and the flame residence time. Increasing the initial dry mass, causes all the previous combustion parameters to increase. These findings have implications for modeling biomass burning emissions and impacts.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Atmospheric Environment - Volume 159, June 2017, Pages 92-106
نویسندگان
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