دانلود مقاله ISI انگلیسی شماره 106867
ترجمه فارسی عنوان مقاله

سطح تثبیت کننده فن آوری احتراق: ارزیابی تجربی از میزان سوخت انعطاف پذیری و انتشار آلاینده ها با استفاده از سوخت های کم و با کیفیت

عنوان انگلیسی
Surface stabilized combustion technology: An experimental evaluation of the extent of its fuel-flexibility and pollutant emissions using low and high calorific value fuels
کد مقاله سال انتشار تعداد صفحات مقاله انگلیسی
106867 2018 13 صفحه PDF
منبع

Publisher : Elsevier - Science Direct (الزویر - ساینس دایرکت)

Journal : Applied Thermal Engineering, Volume 136, 25 May 2018, Pages 206-218

پیش نمایش مقاله
پیش نمایش مقاله  سطح تثبیت کننده فن آوری احتراق: ارزیابی تجربی از میزان سوخت انعطاف پذیری و انتشار آلاینده ها با استفاده از سوخت های کم و با کیفیت

چکیده انگلیسی

Surface-stabilized combustion (SSC) is a fuel-flexible technology that extends the stability limits of lean premixed systems, while achieving ultra-low emissions of NOx, CO and UHC (unburned hydrocarbons). To evaluate these attributes, the present study quantifies (1) operability characteristics i.e., lean blowoff limit and flashback behavior and (2) pollutant emissions (CO, N2O, NH3, NO and NO2) of a commercial SSC burner when operating at a fixed fire rate on a wide range of fuel compositions. The experimental burner is the Duratherm™ ceramic-fiber burner by Alzeta Corporation. Experiments were carried out with multiple gaseous fuel blends starting with low reactivity biogas blends containing up to 65% CO2 (by volume) balanced with natural gas, and high reactivity fuels such as hydrogen enriched natural gas (HENG) blends. The burner was able to stabilize multiple fuel compositions without requiring any modifications, which attests to the inherent fuel-flexibility of the technology. It was found that the modes of operation and flame stabilization of the SSC burner can be parametrized by the ratio of the speed of the mixture at the surface to its laminar burning velocity. The results affirm low emission operation is attainable on all fuels. In terms of nitrogen species other than oxides of nitrogen, the study found trace levels of N2O and NH3 (<0.1 ppm) emitted during steady state operation. However, the emission of those species can become significant during ignition and near the lean stability limit.