매립가스 마이크로가스터빈 배가스 분석에 관한 실험적 연구
Experimental Study of the Landfill Gas Fuelled Micro Gas Turbine Exhaust Gas Analysis
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MGT fuelled by landfill gas was tested to asses feasibility of its exhaust gas application for CO2 enrichment. The exhaust gas was analyzed during start-up and normal operation with different MGT load conditions. Due to the changes of air/fuel ratio and combustion mode, O2, CO2, CO and NOx concentration were varied within wide ranges during the MGT start-up. Especially, NOx emissioin level was increased up to 20.01 ppmv. Different tendencies of O2, CO2, CO and NOx concentrations were observed with MGT output changes. O2 and CO concentrations were shown to be decreased and NOx and CO2 concentrations were shown to have opposite trends. NOx emission level (0.8~1.88 ppmv) was very low compared to other types of combustion based power generation equipment. Unburned hydrocarbon emission level was substantially decreased with MGT load increase. Especially, C2H4 concentration was below the detection limit(0.2 ppmv) around the nominal load condition. The exhaust gas from landfill gas fuelled MGT system was shown to be feasible for CO2 fertilization. Concentrations of major components were within or below the maximum allowable ranges.
Abstract
MGT fuelled by landfill gas was tested to asses feasibility of its exhaust gas application for CO2 enrichment. The exhaust gas was analyzed during start-up and normal operation with different MGT load conditions. Due to the changes of air/fuel ratio and combustion mode, O2, CO2, CO and NOx concentration were varied within wide ranges during the MGT start-up. Especially, NOx emissioin level was increased up to 20.01 ppmv. Different tendencies of O2, CO2, CO and NOx concentrations were observed with MGT output changes. O2 and CO concentrations were shown to be decreased and NOx and CO2 concentrations were shown to have opposite trends. NOx emission level (0.8~1.88 ppmv) was very low compared to other types of combustion based power generation equipment. Unburned hydrocarbon emission level was substantially decreased with MGT load increase. Especially, C2H4 concentration was below the detection limit(0.2 ppmv) around the nominal load condition. The exhaust gas from landfill gas fuelled MGT system was shown to be feasible for CO2 fertilization. Concentrations of major components were within or below the maximum allowable ranges.
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