کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4980498 | 1453261 | 2017 | 38 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Propagation indices of methane-air explosions in closed vessels
ترجمه فارسی عنوان
شاخص های انتشار مواد منفجره متان در انبارهای بسته
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کلمات کلیدی
متان، ظرف بسته شده انفجار، انتشار ایمنی،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
بهداشت و امنیت شیمی
چکیده انگلیسی
The peak explosion pressure, the maximum rate of pressure rise and the time necessary to reach the peak explosion pressure are important flammability indices of fuel-air combustion in closed vessels, characteristic for the laminar propagation stage of the process. In the present paper, these indices were examined using methane of various concentrations within the flammability limits, at variable initial pressure between 50 and 200Â kPa and ambient initial temperature. For each composition, the experimental explosion pressures were compared with the adiabatic explosion pressures, computed under the assumption that chemical equilibrium is reached in the flame. The experimental explosion pressures and the rates of pressure rise are examined in comparison with literature data, the fluctuations being attributed to differences of heat lost by the flammable gas to the explosion vessel, during flame propagation. Using the differences between the adiabatic and experimental explosion pressures, the amount of heat lost to the walls during the explosion propagation in a closed vessel and the fraction of the transferred heat from the total released heat have been determined.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Loss Prevention in the Process Industries - Volume 47, May 2017, Pages 110-119
Journal: Journal of Loss Prevention in the Process Industries - Volume 47, May 2017, Pages 110-119
نویسندگان
Maria Mitu, Venera Giurcan, Domnina Razus, Maria Prodan, Dumitru Oancea,