کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
659859 1458117 2010 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Infrared thermography and numerical study of vaporization characteristics of pure and blended bio-fuel droplets
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی جریان سیال و فرایندهای انتقال
پیش نمایش صفحه اول مقاله
Infrared thermography and numerical study of vaporization characteristics of pure and blended bio-fuel droplets
چکیده انگلیسی
The combustion dynamics and stability are dependent on the quality of mixing and vaporization of the liquid fuel in the pre-mixer. The vaporization characteristics of different blends of bio-fuel droplets injected into the air stream in the pre-mixer have been modeled. Two major alternate fuels analyzed are ethanol and Rapeseed Methyl Esters (RME). Ethanol is being used as a substitute of gasoline, while RME has been considered as an alternative for diesel. In the current work, the vaporization characteristics of a single droplet in a simple pre-mixer has been studied for pure ethanol and RME in a hot air jet at a temperature of 800 K. In addition, the behavior of the fuels when they are mixed with conventional fuels like gasoline and diesel is also studied. Temperature gradients and vaporization efficiency for different blends of bio-conventional fuel mixture are compared with one another. Smaller droplets vaporize faster than larger droplets ensuring homogenous mixture. The model was validated using an experiment involving convection heating of acoustically levitated fuel droplets and IR-thermography to visualize and quantify the vaporization characteristics of different bio-fuel blends downstream of the pre-mixer.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Heat and Mass Transfer - Volume 53, Issues 19–20, September 2010, Pages 3862-3873
نویسندگان
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