کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7722500 | 1497520 | 2013 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Comparative investigations of flame kernel development in a laser ignited hydrogen-air mixture and methane-air mixture
ترجمه فارسی عنوان
بررسی مقایسه ای در توسعه هسته شعله در یک لیزر احیا مخلوط هیدروژن هوا و مخلوط متان-هوا
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کلمات کلیدی
احتراق لیزر، هیدروژن مخلوط هوا، مخلوط متان؟ هسته شعله، سرعت شعله
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
چکیده انگلیسی
In this research, experimental investigations are carried out to study the laser ignition of hydrogen-air mixtures, which are compared with the baseline data of laser ignited methane-air mixtures. Experiments were carried out in a high pressure constant volume combustion chamber (CVCC) to investigate the flame kernel development and visualization, and flame speeds. The initial operating conditions of the experiments were set to 373 K chamber temperature and 10 bar chamber filling pressure. The flame kernel growth was investigated for different hydrogen-air mixture strengths ranging from λ = 2.0-5.0 and compared with the baseline of methane-air mixtures of λ = 1.2. A Q-switched Nd: YAG laser at 1064 nm wavelength with pulse duration of 6-9 ns was used for ignition by generating laser plasma inside the CVCC. The results indicate that the phenomenon of micro-explosions in the wave-front of hydrogen-air mixtures lead to significantly different flame front evolution and higher flame speeds compared to methane-air mixtures.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Hydrogen Energy - Volume 38, Issue 25, 21 August 2013, Pages 10648-10653
Journal: International Journal of Hydrogen Energy - Volume 38, Issue 25, 21 August 2013, Pages 10648-10653
نویسندگان
Kewal Dharamshi, Anuj Pal, Avinash Kumar Agarwal,