4412 Power enhancement of tubular type SOFC by performance simulation tools

Kiyabu, Toshiyasu; Yamashita, Akihiro; Ohkuma, Shigeru; Matake, Norihisa; Kosaka, Kenichirou; Kabata, Tatsuo; Nagao, Hidemi; Joujima, Takahiro

doi:10.1299/jsmemecjo.2006.7.0_185

Cited by 2 publications

(2 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Tubular cell gives strong structure, high voltage and low current. MHI has improved gas diffusivity, reduced electrical resistance of the interface between air electrode and electrolyte, and reduced electrical resistance of air electrode in the longitudinal direction, based on numerical analysis (1). Performance of the tubular cell has been confirmed as the initial power output of 143 W, maximum power output of 151 W at 0.65 V/cell, and no degradation after heat cycle (Figs.…”

Section: Development Of Tubular Cellmentioning

confidence: 93%

Development of SOFC-Micro Gas Turbine Combined Cycle System

Nishiura¹,

Koga²,

Kabata³

et al. 2007

ECS Trans.

View full text Add to dashboard Cite

SOFC-gas turbine combined cycle system is able to attain extremely high efficiency over 70% (LHV). Mitsubishi Heavy Industries (MHI) has been developing SOFCs since 1984. Now, MHI is integrating SOFC with a gas turbine for a combined cycle power generation system. MHI has improved the components and the control technology for the combined cycle system; this includes improvement of the cell stack, verification of pressurized operation and control of SOFC module, and the combustor for low-calorie fuel. In 2006, MHI operated a combined cycle system with a maximum power output of 75 kW, for the first time in Japan. Now, MHI is ready to manufacture a 200 kW class SOFC-MGT combined cycle system, which will be operated in 2007.

show abstract

Section: Development Of Tubular Cellmentioning

confidence: 93%

Development of SOFC-Micro Gas Turbine Combined Cycle System

Nishiura¹,

Koga²,

Kabata³

et al. 2007

ECS Trans.

View full text Add to dashboard Cite

show abstract

“…Using this condition and the Faraday's law and critical current density I d,lim obtained from the Fick's first law of diffusion, the concentration polarization with current density of I d is expressed by equation [3]. From equations [2] and [3], the concentration polarization depends on the thickness of gas the diffusion layer thicknessδ[m] and effective diffusion coefficient D eff [m 2 /s], porosityε, tortuosityτand main gas concentration C b [mol/m 3 ] Activation Polarization η A. The activation polarization is considered with the Butler-Volmer equation indicated in [4] and its development [5).…”

Section: Development Of Simulation Technologymentioning

confidence: 99%

Improvement of Tubular Type Cell Stack

Tomida¹,

Kabata²,

Nagao³

et al. 2007

ECS Trans.

Self Cite

View full text Add to dashboard Cite

Mitsubishi Heavy Industries (MHI) has been developing tubular type SOFC since 1984. With the support of NEDO during the fiscal years 2003 to 2004, some materials have been investigated in order to reduce resistance. The cell tube which is applied advanced materials had been developed, and was operated at 900{degree sign}C, 0.4MPa, 300 mA/cm2. Its output density of 0.21W/cm2 was achieved. The consignment research of NEDO is continued from 2005 to 2007. In this project, we are now developing a simulation technology of performance in order to optimize the cell tube configuration and advanced materials for a high power density cell tube. In 2006, a cell tube that was optimized by advanced simulation technology was developed. The cell tube was operated at 900°C, 0.6MPa, 750mA/cm2. Its output density of 0.5W/cm2 was achieved. This paper reports the current status of improvement of high power density tubular type SOFC at MHI.

show abstract

4412 Power enhancement of tubular type SOFC by performance simulation tools

Cited by 2 publications

References 0 publications

Development of SOFC-Micro Gas Turbine Combined Cycle System

Development of SOFC-Micro Gas Turbine Combined Cycle System

Improvement of Tubular Type Cell Stack

Contact Info

Product

Resources

About