کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
207690 | 461223 | 2010 | 8 صفحه PDF | دانلود رایگان |
In this article a methodology is presented for studying the influence of the biomass moisture content and the biomass/air ratio on the producer gas composition and on the chemiluminescent emissions during the combustion process.Firstly, a mathematical model based on the thermo-chemical processes inside the gasifier is used to predict the composition of the producer gas as a mixture of CO, CO2, H2, N2, CH4 and H2O gases. Secondly, the predicted composition is introduced into a constant volume combustion bomb (CVCB), which simulates the typical conditions inside the combustion chamber of an internal combustion engine, in order to characterize its combustion under gasoline-type conditions through the instantaneous pressure and the detection of the spontaneous luminous radiation (chemiluminescence) emitted by chemical radicals (OH* and CH*) excited by the front flame propagation. Thirdly, the pressure curve is introduced into a two-zone analysis model based on the conservation equations to determine the parameters useful for making a diagnosis of the combustion process, such as the temperature in each zone, the laminar burning velocity, the burned mass fraction and the rate of heat release during the combustion process.
Journal: Fuel - Volume 89, Issue 3, March 2010, Pages 724–731