کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7060519 1458688 2018 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Spray fire induced gas temperature characteristics and correlations in a ceiling ventilated compartment
ترجمه فارسی عنوان
ویژگی های دمای هوای گرم ناشی از آتش اسپری و همبستگی در محفظه تهویه سقف
کلمات کلیدی
آتش اسپری، سقف تهویه محفظه، تجزیه و تحلیل انتقال حرارت، همبستگی دما
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی جریان سیال و فرایندهای انتقال
چکیده انگلیسی
Spray fire, one of the common fires, often occurs in ship cabin and results in serious economic loss and casualties. However, there are few literatures [1-3] in terms of compartment spray fire, especially its gas temperature characteristics. Hence, a series of spray fire experiments were conducted in a 2 m × 2 m × 1.88 m ceiling ventilated compartment. It is found that the injecting pressure and ceiling vent size have significant effect on gas temperature. Gas temperature increases with the increase of injecting pressure and the increase in ceiling vent size results in a higher maximum gas temperature. The gas heat gain dominates the total heat transfer. The percentage of gas heat gain decreases with the ceiling vent size while the heat transfer through ceiling vent and compartment walls increases. For estimating the time-dependent average gas temperature in the combustion process, a simplified model was developed according to the thermal analyses, which shows good agreement with experimental data. Furthermore, based on M-Q-H method, a dimensionless analysis was performed for the total average gas temperature rise during the whole combustion process and the corresponding correlation was established, which can be applicable to estimate the gas temperature in ceiling ventilated compartment spray fire scenario.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Thermal Sciences - Volume 134, December 2018, Pages 188-199
نویسندگان
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