کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6473508 1424953 2018 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Laminar burning velocity measurements in constant volume vessels - Reconciliation of flame front imaging and pressure rise methods
ترجمه فارسی عنوان
اندازه گیری سرعت سرعت سوزاندن لامینال در عروق ثابت - اتخاذ تصویربرداری جلوی شعله و روش افزایش فشار
کلمات کلیدی
سرعت سوزش لامینار، اندازه گیری سرعت شعله اندازه گیری فشار افزایش، متان، اتانول، بیوگاز،
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
چکیده انگلیسی


- Direct comparisons between laminar burning velocity measurements made by flame front imaging and pressure rise methods.
- Correlations for the laminar burning velocity of methane/air mixtures.
- Correlations for the laminar burning velocity of biogas (60% methane, 40% carbon dioxide)/air mixtures.
- Correlations for the laminar burning velocity of ethanol/air mixtures.

Laminar burning velocity measurements have been made in a constant volume vessel using both flame front imaging and the pressure rise methods. Results from the two different methods are shown to be the same, so long as appropriate techniques are used for analysing the data. Comparisons are presented for the laminar burning velocity of mixtures with air of methane, ethanol and biogas (60% methane, 40% carbon dioxide) for a wide range of flammable mixtures at pressures of 2 and 4 bar and temperatures of 380 and 450 K.Methods for measuring the laminar burning velocity are still the subject of controversy, with different researchers favouring different approaches. Open flame techniques are very popular and the so-called heat flux method is now well established. The alternative technique of using a constant volume combustion vessel is also in common use, and has two distinct methods of use: either the imaging of flame front propagation at conditions of constant pressure, or the measurement of the pressure rise combined with a constant volume combustion model. The pressure rise method requires a more complex analysis, but has the advantage that a single experiment generates data across a range of linked temperatures and pressures, and the pressure and temperature rise also mean that data can be obtained for engine-like conditions.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Fuel - Volume 211, 1 January 2018, Pages 446-457
نویسندگان
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