Oxy-Diesel Firing in a Retrofit 300kW th Test Facility a Retrofit - - PowerPoint PPT Presentation
3rd Oxyfuel Combustion Conference Oxy-Diesel Firing in a Retrofit 300kW th Test Facility a Retrofit 300kW th Test Facility C.F. Moreira Selva, C.C. Chi, and T.H. Lin Department of Mechanical Engineering Research Center for Energy Technology and
C.F. Moreira Selva, C.C. Chi, and T.H. Lin Department of Mechanical Engineering Research Center for Energy Technology and Strategy National Cheng Kung University, Tainan, Taiwan W.C. Huang, and S.S. Hou Department of Mechanical Engineering Kun Shan University Tainan Taiwan Kun Shan University, Tainan, Taiwan
2010
Jet flame investigation
2012
Oxy coal demonstration
Furnace Air Leakage, L Fuel Air Oxygen Exhaust
Road Map for Developing Oxyfuel Combustion Technology in NCKU 2009
Jet flame investigation
2011
Oxy-coal demonstration
FGR x (Products + L)
Feasibility study Oxy-oil demonstration
300kW Multi-fuel Combustion Test Facility in NCKU 300kWth Multi-fuel Combustion Test Facility in NCKU
The retrofit facility was designed to maintain a positive pressure at the exit to ensure zero air leakage into the facility.
Temperature of wet-recirculating flue gas was around 70°C. Temperature of dry-recirculating flue gas was around 50°C. Moisture content in Dry RFG was nearly half of that in Wet RFG.
Basic Design of Burner for High Pressure Nozzle
Transition from Air-Firing to Oxygen-Firing
Influence of Flue Gas Recirculation
Basic Design of Burner for Air Atomized Nozzle
1400 1600 1800 e (℃) VD = 14 L/h . VA, Pri = 7.6 Nm3/h . VO = 31.5 Nm
3/h
. Wet FGR
Wet Flue Gas Recirculation
1000 1200 1400 Temperature Tw-1 Tw-2 Tw-3 Tw-4 Tw-5 150 200 250 300
2 (ppm)
40 50 60 70 O2 (%) NO VD = 14 L/h . VA, Pri = 7.6 Nm3/h . VO = 31.5 Nm3/h . Wet FGR 800 16 20 24 28 32 ΨO2 (%) 50 100 150 NO, SO2 10 20 30 O2, CO SO O CO O2 SO2 CO2 800 1000 VD = 14 L/h .
3
. Wet FGR 16 20 24 28 32 ΨO2 (%) 400 600 800 Temperature (℃) Tg-1 Tg-2 Tg-3 Tg 4 VA, Pri = 7.6 Nm3/h . VO = 31.5 Nm3/h . 200 16 20 24 28 32 ΨO2 (%) T Tg-4 Tg-5
1400 1600 1800 (℃) VD = 14 L/h . VA, Pri = 7.6 Nm
3/h
. VO = 31.5 Nm
3/h
. Dry FGR
Dry Flue Gas Recirculation
1000 1200 1400 Temperature Tw-1 Tw-2 Tw-3 Tw-4 Tw-5 200 250 300
2 (ppm)
40 50 60 70 O2 (%) NO VD = 14 L/h . VA, Pri = 7.6 Nm
3/h
. VO = 31.5 Nm
3/h
. Dry FGR 800 16 20 24 28 32 ΨO2 (%) 50 100 150 NO, SO2 10 20 30 O2, CO SO O CO O2 SO2 CO2 800 1000 VD = 14 L/h . V 7 6 N
3/h
. Dry FGR 16 20 24 28 32 ΨO2 (%) 400 600 800 Temperature (℃) Tg-1 Tg-2 Tg-3 Tg 4 VA, Pri = 7.6 Nm3/h VO = 31.5 Nm3/h . 200 16 20 24 28 32 ΨO2 (%) Tg-4 Tg-5
1200 1400 (℃) Tw1 Tw2 Tw3 Tw4 Tw5 mcoal = 27 kg/h .
Dry Flue Gas Recirculation
4000 5000 6000 7000 SO2 (ppm) 60 80 100 O2 (%) CO NO SO O CO mcoal = 27 kg/h . O2 CO2 SO2 800 1000 Temperature 1000 2000 3000 CO, NO, S 20 40 O2, CO 600 30 31 32 33 34 ΨO2 (%) 1000 Tg1 Tg2 Tg3 Tg4 Tg5 mcoal = 27 kg/h . 30 31 32 33 34 ΨO2 (%) 600 800 Temperature (℃) Tg4 Tg5 200 400 30 31 32 33 34 ΨO2 (%) T