• Ceramist
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• v.15 no.3
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• pp.24-33
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• 2012

• Ceramist
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• v.13 no.4
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• pp.21-24
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• 2010

• 한국전기화학회:학술대회논문집
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• 2000.10a
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• pp.49-49
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• 2000

• 한국전기화학회:학술대회논문집
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• 2003.10a
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• pp.61-61
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• 2003

• Proceedings of the Korea Society for Energy Engineering kosee Conference
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• 1998.10a
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• pp.297-300
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• 1998

• Ceramist
• /
• v.7 no.6
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• pp.30-38
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• 2004

• Ceramist
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• v.4 no.1
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• pp.82-95
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• 2001

• The Magazine of the Society of Air-Conditioning and Refrigerating Engineers of Korea
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• v.34 no.11
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• pp.33-43
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• 2005

• Journal of Advanced Marine Engineering and Technology
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• v.35 no.5
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• pp.582-589
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• 2011

The fuel cell technology has been considered as a technology to reduce greenhouse gases emission from a ship. In this research, internal reforming 500kW solid oxide fuel cell system fueled by methane for a ship were developed. Characteristics of gas temperature, stack power and system efficiency depending on the air flow rate, $CH_4$ flow rate, $H_2O$ flow rate, and system operation pressure are evaluated. As a result, air and $CH_4$ flow rate directly affect the temperature of inlet and outlet gas in the fuel cell stack. When the air and $H_2O$ flow rate increase, the stack power and system efficiency increases. However, the case of $CH_4$ flow rate increase, the efficiency decreases.

• Transactions of the Korean Society of Mechanical Engineers B
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• v.39 no.6
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• pp.505-511
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• 2015

Solid oxide fuel cell operate at high temperature ($800{\sim}1000^{\circ}C$). High temperature have an advantage of system efficiency, but a weak durability. In this study, linear state space controller is designed to handle the temperature of solid oxide fuel cell system for proper thermal management. System model is developed under simulink environment with Thermolib$^{(R)}$. Since the thermally optimal system integration improves efficiency, very complicated thermal integration approach is selected for system integration. It shows that temperature response of fuel cell stack and catalytic burner are operated at severe non-linearity. To control non-linear temperature response of SOFC system, gain scheduled linear quadratic regulator is designed. Results shows that the temperature response of stack and catalytic burner follows the command over whole ranges of operations.