A performance analysis of integrated solid oxide
fuel cell and heat recovery steam generator for IGFC system
A performance analysis of integrated solid oxide
fuel cell and heat recovery steam generator for IGFC system
Souman RUDRA1,H. T. KIM1,Jinwook LEE2,L. ROSENDAHL3,
1.Division of Energy System
Research, Graduate School, Ajou University, Suwon 443-749, Korea; 2.Plant Engineering Center,
Institute of Advance Engineering, Suwon 443-749, Korea; 3.Department of Energy
Technology, Aalborg University, DK-9220, Denmark;
Abstract：Solid oxide fuel cell (SOFC) is a promising technology for electricity generation. Sulfur-free syngas from a gas-cleaning unit serves as fuel for SOFC in integrated gasification fuel cell (IGFC) power plants. It converts the chemical energy of fuel gas directly into electric energy, thus high efficiencies can be achieved. The outputs from SOFC can be utilized by heat recovery steam generator (HRSG), which drives the steam turbine for electricity production. The SOFC stack model was developed using the process flow sheet simulator Aspen Plus, which is of the equilibrium type. Various ranges of syngas properties gathered from different literature were used for the simulation. The results indicate a trade-off efficiency and power with respect to a variety of SOFC inputs. The HRSG located after SOFC was included in the current simulation study with various operating parameters. This paper describes IGFC power plants, particularly the optimization of HRSG to improve the efficiency of the heat recovery from the SOFC exhaust gas and to maximize the power production in the steam cycle in the IGFC system. HRSG output from different pressure levels varies depending on the SOFC output. The steam turbine efficiency was calculated for measuring the total power plant output. The aim of this paper is to provide a simulation model for the optimal selection of the operative parameters of HRSG and SOFC for the IGFC system by comparing it with other models. The simulation model should be flexible enough for use in future development and capable of predicting system performance under various operating conditions.
. A performance analysis of integrated solid oxide
fuel cell and heat recovery steam generator for IGFC system[J]. Front. Energy, 2010, 4(3): 402-413.
Souman RUDRA, H. T. KIM, Jinwook LEE, L. ROSENDAHL, . A performance analysis of integrated solid oxide
fuel cell and heat recovery steam generator for IGFC system. Front. Energy, 2010, 4(3): 402-413.
Harvey S P, Richter H J. A detailed study of a gas turbine cycle with an integrated internalreforming solid oxide fuel cell. In: Proceedings of 29th Intersociety Energy Conversion Engineering Conference, Monterey,CA, 1994, 961–973
Costamagna P, Magistri L, Massardo A F. Design and part-load performanceof a hybrid system based on a solid oxide fuel cell reactor and amicro gas turbine. Journal of Power Sources, 2001, 96(2): 352–368 doi: 10.1016/S0378-7753(00)00668-6
George R A. Status of tubular SOFC field unit demonstrations. Journal of Power Sources, 2008, 6(1―2): 134–139
Calisea F, Dentice d’Accadiaa M, Palomboa A, Vanoli L. Simulation and exergy analysis of a hybrid solid oxidefuel cell (SOFC)—Gas turbine system. Energy, 2006, 31(15): 3278–3299 doi: 10.1016/j.energy.2006.03.006
Mahagaokar U, Egon L D. High heat recovery in coal and coke gasification combined gasification system. ASME Paper 95-GT-259, 1995
Jiang L, Lin R, Jin H, Cai R, Liu Z. Study on thermodynamic character and optimization of steam cycle system in IGCC. Energy, 2002, 43(9―12): 1339–1348
Zhu H, Kee R, Zhu H Y, Kee R J. Thermodynamics of SOFC efficiency and fuel utilization as functionsof fuel mixtures and operating conditions. Journal of Power Sources, 2006, 161(2): 957–964 doi: 10.1016/j.jpowsour.2006.05.006
Campanari S. Thermodynamic model and parametric analysis of a tubularSOFC module. Journal of Power Sources, 2001, 92(1,2): 26–34
Suwanwarangkul R, Croiset E, Pritzker M D, Fowler M W, Douglas P L, Entchev E. Modeling of a cathode-supportedtubular solid oxide fuel cell operation with biomass-derived synthesisgas. Journal of Power Sources, 2007, 166(2): 386–399 doi: 10.1016/j.jpowsour.2006.12.096
Souman R, Kim H T, Wang H Y, Lee J W. Thermodynamic and exergy optimization of the operative parametersfor the heat recovery steam generator in IGCC power plant. IGEC-IV, Beijing, China, 2008, 68–72
Erbes M R, Eustis R H. A computer methodology for predicting design and off-design performanceof utility steam turbine generators. In: Proc American Power Conf, Chicago, Illinois, 1986
Spencer R C, Cotton K C, Cannon C N. A method of predicting theperformance of steam turbine-generators. ASME Power Division, 1963, Paper No. 62-WA-209
Pietro P D, Gerdes K. Integrated Gasification Fuel Cell Performance. DOE/NETL2009, 2009
