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 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

Background  Road Map for Developing Oxyfuel Combustion Technology in NCKU Air Leakage, L Fuel 2010 2012 Exhaust Air Furnace Oxygen Jet flame investigation Jet flame investigation Oxy-coal demonstration Oxy coal demonstration FGR x (Products + L) 2009 2011 Feasibility study Oxy-oil demonstration  300kW  300kW th Multi-fuel Combustion Test Facility in NCKU Multi-fuel Combustion Test Facility in NCKU

Horizontal Furnace with Flue Gas Recirculation

Oxy-Oil Firing Test (From Air-Firing to Oxygen-Firing)

Oxy-Oil Firing Test (Flue Gas Recirculation)

Oxy-Oil Firing Test (Heating Performance)

Oxy-Oil Firing Test (Flue Gas Emissions)

Oxy-Oil Firing Test (Air Leakage)

The Retrofit 300kW th Combustion Test Facility  The retrofit facility was designed to maintain a positive pressure at the exit to ensure zero air leakage into the facility.

Flue Gas Recirculation  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.

Measurements on Temperatures and Flue Gas Emissions

Oxy-Diesel Firing Test (High Pressure Nozzle)  Basic Design of Burner for High Pressure Nozzle 噴流火焰 噴流火焰

Oxy-Diesel Firing Test (High Pressure Nozzle)  Transition from Air-Firing to Oxygen-Firing

Oxy-Diesel Firing Test (High Pressure Nozzle)  Influence of Flue Gas Recirculation

Oxy-Diesel Firing Test (Air Atomized Nozzle)  Basic Design of Burner for Air Atomized Nozzle

Oxy-Diesel Firing Test (Air Atomized Nozzle)  Wet Flue Gas Recirculation 1800 Wet FGR . V D = 14 L/h . 1600 V A, Pri = 7.6 Nm 3 /h . e ( ℃ ) 3 /h V O = 31.5 Nm 1400 1400 Temperature 300 70 Tw-1 Wet FGR . Tw-2 V D = 14 L/h 60 250 1200 . Tw-3 V A, Pri = 7.6 Nm 3 /h 50 Tw-4 . 2 (ppm) V O = 31.5 Nm 3 /h 200 O 2 (%) 1000 Tw-5 40 NO NO, SO 2 150 150 O 2 , CO SO 2 SO 30 800 100 16 20 24 28 32 O 2 O 20 Ψ O2 (%) 1000 CO CO 2 50 Wet FGR 10 . V D = 14 L/h . . 0 0 0 0 800 800 V A, Pri = 7.6 Nm 3 /h 3 . 16 20 24 28 32 Temperature ( ℃ ) V O = 31.5 Nm 3 /h Ψ O2 (%) 600 Tg-1 Tg-2 400 Tg-3 T Tg-4 Tg 4 200 Tg-5 0 16 20 24 28 32 Ψ O2 (%)

Oxy-Diesel Firing Test (Air Atomized Nozzle)  Dry Flue Gas Recirculation 1800 Dry FGR . V D = 14 L/h . 1600 3 /h V A, Pri = 7.6 Nm . ( ℃ ) 3 /h V O = 31.5 Nm 1400 1400 Temperature 300 70 Tw-1 Dry FGR . Tw-2 V D = 14 L/h 60 250 1200 . Tw-3 3 /h V A, Pri = 7.6 Nm 50 . Tw-4 2 (ppm) 3 /h 200 V O = 31.5 Nm O 2 (%) 1000 Tw-5 40 NO NO, SO 2 O 2 , CO 150 SO 2 SO 30 800 100 16 20 24 28 32 O O 2 20 Ψ O2 (%) 1000 CO 2 CO Dry FGR 50 . 10 V D = 14 L/h . 800 800 V A, Pri = 7.6 Nm 3 /h 3 /h 0 0 0 0 V 7 6 N . Temperature ( ℃ ) V O = 31.5 Nm 3 /h 16 20 24 28 32 Ψ O2 (%) 600 Tg-1 Tg-2 400 Tg-3 Tg-4 Tg 4 200 Tg-5 0 16 20 24 28 32 Ψ O2 (%)

Oxy-Coal Firing Test  Dry Flue Gas Recirculation 1400 . m coal = 27 kg/h Tw1 Tw2 Tw3 Tw4 Tw5 1200 ( ℃ ) 7000 100 Temperature . m coal = 27 kg/h 1000 CO NO SO SO 2 6000 80 O 2 O CO CO 2 SO 2 (ppm) 5000 800 O 2 (%) 60 4000 CO, NO, S O 2 , CO 3000 600 40 30 31 32 33 34 2000 Ψ O2 (%) 1000 . 20 m coal = 27 kg/h 1000 Tg1 Tg2 Tg3 Tg4 Tg4 Tg5 Tg5 0 0 0 0 800 Temperature ( ℃ ) 30 31 32 33 34 Ψ O2 (%) 600 T 400 200 30 31 32 33 34 Ψ O2 (%)

3rd Oxyfuel Combustion Conference Oxy-Diesel Firing in a Retrofit 300kW th Test Facility a Retrofit 300kW th Test Facility Thank you for your attention !!