Evaluation of an Energy Separation Device for the Efficiency Improvement of a Planar Solid Oxide Fuel Cell System with an External Reformer

Due to the high operating temperature of solid oxide fuel cells (SOFC), the system efficiency depends on efficient thermal integration and the effective construction of system configuration. In this study, nine configurations of system integration design were investigated to evaluate the possible im...

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Bibliographic Details
Published in:Energies (Basel) 2023-05, Vol.16 (9), p.3947
Main Authors: Yun, Jinwon, Choi, Eun-Jung, Lee, Sangmin, Kim, Younghyeon, Yu, Sangseok
Format: Article
Language:English
Subjects:
Analysis
Automotive parts
Catalytic converters
CHP efficiency
Cogeneration
Cogeneration power plants
Configuration management
Efficiency
electric efficiency
Electricity
Emission control equipment
energy separation device
Energy utilization
Equilibrium
Exhaust systems
Force and energy
Fuel cell industry
Fuel cells
Fuel technology
Gas temperature
Gases
Global temperature changes
Heat exchangers
Heat transfer
Hybridization
Hydrogen
Hydrogen as fuel
Integration
Layouts
Operating temperature
Power plants
Separation
Simulation
solid oxide fuel cell
Solid oxide fuel cells
Thermal energy
Thermal utilization
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Summary:Due to the high operating temperature of solid oxide fuel cells (SOFC), the system efficiency depends on efficient thermal integration and the effective construction of system configuration. In this study, nine configurations of system integration design were investigated to evaluate the possible improvement of system efficiency with energy separation devices. The models were developed under the Matlab/Simulink® platform with Thermolib® module. The reference layout of the simulation included an SOFC stack, a compressor, an external reformer with a burner, a three-way valve, a heat exchanger, and a water pump. From the reference case, eight cases extended layouts for the capability of thermal energy utilization with a catalytic converter, SOFC hybridization, and an energy separation device. Since the energy separation device was beneficial to thermal energy utilization via a boost to the gas temperature, electric efficiency, and combined heat and power (CHP) efficiency was improved with the thermal integration of the energy separation device with a turbo generator.
ISSN:1996-1073
1996-1073
DOI:10.3390/en16093947