کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4916511 | 1428095 | 2017 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Laminar flame characteristics of cyclopentanone at elevated temperatures
ترجمه فارسی عنوان
ویژگی های شعله لامینر سیکلوپنتانون در دمای بالا
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کلمات کلیدی
سیکلوپنتانون، سرعت سوزش لامینار، طول مارکستاین، رگ حجم ثابت
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی انرژی
مهندسی انرژی و فناوری های برق
چکیده انگلیسی
Cyclopentanone, a product of biomass pyrolysis of agricultural waste, has certain advantages as a biofuel candidate but so far little is known about its combustion characteristics. In this paper, the laminar flame characteristics of cyclopentanone, including stretched flame propagation speed, unstretched flame propagation speed, and laminar burning velocity, were measured and compared with gasoline and ethanol, using the outwardly propagating spherical flame method and the high-speed Schlieren photography technique. The experiments were conducted in a constant-volume vessel using various fuel-air equivalence ratios (ÏÂ =Â 0.8-1.6) at elevated initial temperatures (T0Â =Â 423, 448 and 473Â K) and a fixed initial pressure (P0Â =Â 0.1Â MPa). Linear and non-linear extrapolations were used to characterise the relationship between the stretch rate and the stretched flame propagation speed when Markstein length was near to or away from zero respectively. Empirical functions were obtained to calculate the laminar burning velocities of cyclopentanone for various fuel-air equivalence ratios and initial temperatures. The results show that Markstein length of cyclopentanone decreases when equivalence ratio is increased, and the turning point of equivalence ratio at which it changes from positive to negative is slightly below 1.4. The maximum laminar burning velocity of cyclopentanone appears at the equivalence ratio of approximately 1.2, regardless of the initial temperature. The laminar burning velocity of cyclopentanone has a smaller difference to that of ethanol and gasoline when equivalence ratio is leaner than stoichiometric, but when equivalence ratio increases from 1.0 to 1.4, it becomes increasingly lower than that of ethanol and higher than that of gasoline. The maximum laminar burning velocity of cyclopentanone is 0.82Â m/s; for gasoline it is 0.72Â m/s and for ethanol it is 0.86Â m/s, at an initial temperature of 423Â K and pressure of 0.1Â MPa.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Energy - Volume 195, 1 June 2017, Pages 671-680
Journal: Applied Energy - Volume 195, 1 June 2017, Pages 671-680
نویسندگان
Xiuchao Bao, Yizhou Jiang, Hongming Xu, Chongming Wang, Thomas Lattimore, Lan Tang,