TY - GEN
T1 - NUMERICAL SIMULATION OF MOLTEN CARBONATE FUEL-CELL POWER-GENERATION SYSTEMS
AU - He, W.
AU - Chen, Q.
N1 - Publisher Copyright:
© 1997 American Society of Mechanical Engineers (ASME). All rights reserved.
PY - 1997
Y1 - 1997
N2 - This paper provides a dynamic simulation model for investigation of the characteristics of molten carbonate fuel cell (MCFC) systems. To achieve the accuracy of the system model, the essential component model (i.g. fuel cell stack) is first established in three-dimensional, dynamic form, and it is then simplified prior to incorporation into the system model. The development of simulation techniques, such as estimation of variable limits, connection between component models, definition of input variable variation, and selection of simulation time step, has resulted in successful simulations. The stationary simulation results for the entire load range show that the fuel cell system has the highest efficiency at partial load (45% full load). The dynamic simulation results indicate the existence of dynamic interactions between the stack and reformer under load-up operation. Moreover, the investigation has evaluated the alternative operation strategy of providing fuel gas directly to the reformer combustor during load-up mode. This alternative strategy has significantly reduced the dynamic interactions. The model has also been used to select the location of the fuel flow control valve. These results can be used to improve MCFC system operation and control design.
AB - This paper provides a dynamic simulation model for investigation of the characteristics of molten carbonate fuel cell (MCFC) systems. To achieve the accuracy of the system model, the essential component model (i.g. fuel cell stack) is first established in three-dimensional, dynamic form, and it is then simplified prior to incorporation into the system model. The development of simulation techniques, such as estimation of variable limits, connection between component models, definition of input variable variation, and selection of simulation time step, has resulted in successful simulations. The stationary simulation results for the entire load range show that the fuel cell system has the highest efficiency at partial load (45% full load). The dynamic simulation results indicate the existence of dynamic interactions between the stack and reformer under load-up operation. Moreover, the investigation has evaluated the alternative operation strategy of providing fuel gas directly to the reformer combustor during load-up mode. This alternative strategy has significantly reduced the dynamic interactions. The model has also been used to select the location of the fuel flow control valve. These results can be used to improve MCFC system operation and control design.
UR - http://www.scopus.com/inward/record.url?scp=85126879617&partnerID=8YFLogxK
U2 - 10.1115/IMECE1997-0995
DO - 10.1115/IMECE1997-0995
M3 - Conference article published in proceeding or book
AN - SCOPUS:85126879617
T3 - ASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE)
SP - 249
EP - 256
BT - Advanced Energy Systems
PB - American Society of Mechanical Engineers(ASME)
T2 - ASME 1997 International Mechanical Engineering Congress and Exposition, IMECE 1997 - Advanced Energy Systems
Y2 - 16 November 1997 through 21 November 1997
ER -