Proceedings of the KSME Conference (대한기계학회:학술대회논문집)
- 2008.11b
- /
- Pages.2198-2203
- /
- 2008
Premixed Combustion of the Mixture of Anode-off Gas from Reformer and LNG
개질기용 Anode off gas와 LNG의 예혼합 연소특성
- Lee, Jae-Young (Dept. of Mechanical Engineering, University of Incheon) ;
-
Lee, Pil-Hyong
(Dept. of Mechanical Engineering, University of Incheon)
;
- Han, Sang-Seok (Dept. of Mechanical Engineering, University of Incheon) ;
- Park, Chang-Soo (Dept. of Mechanical Engineering, University of Incheon) ;
-
Hwang, Sang-Soon
(Dept. of Mechanical Engineering, University of Incheon)
- Published : 2008.11.05
Abstract
Hydrogen which can be produced through reforming process of hydrocarbon fuel is supplied into anode side of fuel cell system. In the fuel cell, only 70% of hydrogen is consumed through electrochemical reaction and 30% hydrogen passed by as anode off gas. When electrical output of fuel cell is within range of 1.0 to 3.0kW, burner for the reformer uses only anode off gas. And it uses mixture gas of anode off gas and LNG within range of 3.5 to 5.0kW in electrical output. CHEMKIN 4.1 program's Premixed code was used for calculating the properties of each gas. Results show that burning velocity and adiabatic flame temperature are 34.4cm/s, 1681.7K at equivalence ratio 0.8 within range of 1.0kW to 3.0kW and for cases of 3.5kW, 5.0kW, of electrical output, burning velocity and adiabatic flame temperature represent 30.5, 29.8cm/s and 1722.8, 1750K respectively. CO shows the lowest emission index at equivalence ratio 0.8 and NOx reveals the highest emission index at equivalence ratio 1.