고온 태양열 화학 반응기에서의 메탄 - 수증기 개질반응 시뮬레이션
Methane - Steam Reforming Simulation for a High Temperature Solar Chemical Reactor
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Steam reforming of methane in the high temperature solar chemical reactor has advantage in its heating method. Using concentrated solar energy as a heating source of the reforming reaction can reduce the CO2 emission by 20% compared to hydrocarbon fuel. In this paper, the simulation result of methane-steam reforming on a high temperature solar chemical reactor(SCR) using Fluent 6.3.26 is presented. The high temperature SCR is designed for the Inha Dish-1, a Dish type solar concentrator installed in Songdo city. Basic SCR performance factors are referred to the former researches of the same laboratory. Inside the SCR, porous metal is used for a receiver/reactor. The porous metal is carved like a dome shape on the incident side to increase the heat transfer. Also, ring-disc set of baffle is inserted in the porous metal region to increase the path length. Numerical and physical models are also used from the former researches. Methane and steam is mixed with the same mole fraction and injected into the SCR. The simulation is performed for a various inlet mass flow rate of the methane-steam mixture gas. The result shows that the average reactor temperature and the conversion rate changes appreciably by the inlet mass flow rate of 0.0005 kg/s.
Abstract
Steam reforming of methane in the high temperature solar chemical reactor has advantage in its heating method. Using concentrated solar energy as a heating source of the reforming reaction can reduce the CO2 emission by 20% compared to hydrocarbon fuel. In this paper, the simulation result of methane-steam reforming on a high temperature solar chemical reactor(SCR) using Fluent 6.3.26 is presented. The high temperature SCR is designed for the Inha Dish-1, a Dish type solar concentrator installed in Songdo city. Basic SCR performance factors are referred to the former researches of the same laboratory. Inside the SCR, porous metal is used for a receiver/reactor. The porous metal is carved like a dome shape on the incident side to increase the heat transfer. Also, ring-disc set of baffle is inserted in the porous metal region to increase the path length. Numerical and physical models are also used from the former researches. Methane and steam is mixed with the same mole fraction and injected into the SCR. The simulation is performed for a various inlet mass flow rate of the methane-steam mixture gas. The result shows that the average reactor temperature and the conversion rate changes appreciably by the inlet mass flow rate of 0.0005 kg/s.
참고문헌 (13)
- "Hydrogen Production and Distribution. IEA Energy Technology Essentials", ~ (2007)
- F. Mueller-Langer, "Techno -economic assessment of hydrogen production processes for the hydrogen economy for the short and medium term", Int J of Hydrogen Energy, 32, pp.3797~3810 (2007)
- T. Kodama, "Thermochemical methane reforming using a reactive WO3", W redox system, 2000, pp.20, 411~425
- T. Kodama, "High-Temperature Solar Chemistry for Converting Solar Heat to Chemical Fuels", Progress in Energy and Combustion Science, 29, pp.567~597 (2003)
- Muir Jr J, "Solar reforming of methane in a direct absorption catalytic reactor on a parabolic dish. I. Test and analysis", Solar Energy, 52(6), pp.467~477 (1994)
- Buck R, "Development of a volumetric receiver–reactor for solar methane reforming", ASME: J Solar Energy Engng, 116, pp.73~78 (1994)
- 서주현, "5kWt급 접시형 태양열 집열기의 설계 및 예비 성능실험", 한국태양에너지학회 논문집, 27(4), pp.113~120 (2007), 한국태양에너지학회
- 마대성, "반사경 배치와 흡수기 형상에 따른 접시형 고온 태양열 시스템 성능비교", 한국태양에너지학회 논문집, 27(1), pp.29~38 (2007), 한국태양에너지학회
- 고요한, "태양열 화학반응기의 수소전환효율 예측 시뮬레이션", 한국 태양에너지 학회 추계학술발표대회 논문집, pp.294~295 (2008)
- 이주한, "다공성 매질의 형상 변화에 따른 접시형 고온 태양열 흡수기의 열성능 평가", 한국 태양에너지 학회 추계학술발표대회 논문집, pp.238~244 (2008)
- P. A. Erickson, "Heat Transfer Enhancement of Steam 1. Reformation by Passive Flow Disturbance Inside the Catalyst Bed", J of Heat Transfer, 129, pp.995~1003 (2006)
- J. Xu, "Methane steam reforming, methanation and water gas shift. Ⅰ,Intrinsic kinetics", AIChE J, 35, pp.97~103 (1989)
- 신동훈, "수증기-메탄개질반응 해석모델의 비교연구", 대한기계학회논문집 B, 32(7), pp.497~503 (2008), 대한기계학회