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Performance analysis of direct steam reforming of methane in SOFC with SDC-based electrolyte
(2020-02-01)
Saebea, D.
;
Authayanun, S.
;
Patcharavorachot, Y.
This work aims to study on the performance of the SDC-based SOFC with a direct internal reforming of methane at lower temperature in the range of 600–750 ºC. The model of SDC-based SOFC with direct internal reforming mode is simulated and validated. The predicted results are in a good agreement with experimental data. The simulated results indicate that the molar flow rate of the hydrogen produced from the methane steam reforming reaction is higher as an increasing temperature. Moreover, the cathode activation overpotential is obviously reduced. Thus, the increase of temperature from 600 to 700 °C can enhance the average power density of SOFC from 0.19 to 0.42 A/m2.
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Performance Evaluation of Solid Oxide Fuel Cell Coupling to Biogas Tri-reforming with Installation of Hydrogen-Selective Membrane Separator
(2020-01-01)
Saebea, D.
;
Soisuwan, S.
;
Patcharavorachot, Y.
Due to high CO<inf>2</inf> composition in biogas, hydrogen concentration produced from the biogas reforming process is low, which has negative effect on the SOFC efficiency. Therefore, aims of this study are to improve and analyze the performance of solid oxide fuel cell (SOFC) integrated with hydrogen production from tri-reforming process of biogas coupling to hydrogen-selective membrane separator. The simulation results show that the increase of pressure increases the hydrogen separation in Pd/Ag membrane separator. The Pd/Ag membrane separator can separate hydrogen of 47.5 %, at 8 bar. When comparing the integrated system of SOFC and biogas tri-reforming without/with installing hydrogen-selective membrane separator, the efficiency of system with coupling to hydrogen-selective membrane separator is higher than that without coupling to hydrogen-selective membrane separator about 13-14.7 %.
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Biomass gasification of sugarcane leftover for green diesel production
(2018-01-01)
Chatrattanawet, N.
;
Kanjanasorn, W.
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Authayanun, S.
;
Saebea, D.
;
Patcharavorachot, Y.
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SOFC running on steam reforming of biogas: External and internal reforming
(2016-01-01)
Authayanun, S.
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Pornjarungsak, T.
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Prukpraipadung, T.
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Saebea, D.
;
Arpornwichanop, A.
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Effects of SOFC exhaust gas recirculation on performance of solid oxide fuel cell-gas turbine hybrid system utilizing renewable fuels
(2015-01-01)
Saebea, D.
;
Authayanun, S.
;
Patcharavorachot, Y.
;
Arpornwichanop, A.
The use of biogas and ethanol as fuels for solid oxide fuel cell-gas turbine (SOFC-GT) hybrid system needs an external steam reformer. As the operation of steam reformer and air preheater requires high external energy input, the efficient heat management of the SOFC system is necessary. Thus, the aim of this study is to analyze the recycling of the SOFC exhaust gas in a SOFC-GT hybrid system utilizing fuels such as ethanol and biogas. The effect of the recirculation ratio of the anode exhaust gas on the performance, the SOFC efficiency, the turbine to SOFC power ratio, and the overall efficiency of hybrid system was first investigated. Additionally, the recirculation of both anode and cathode exhaust gases in the SOFC-GT hybrid system was studied.
1
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Enhancement of hydrogen production for steam reforming of biogas in fluidized bed membrane reactor
(2014-01-01)
Saebea, D.
;
Authayanun, S.
;
Patcharavorachot, Y.
;
Arpornwichanop, A.
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Simulation of hydrogen production with in situ CO2 removal using ASPEN PLUS
(2014-01-01)
Patcharavorachot, Y.
;
Likkasith, C.
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Piemnernkoom, N.
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Saebea, D.
;
Arpornwichanop, A.
1
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Integrated system of a proton-conducting SOFC and ethanol autothermal reformer: Design and performance evaluation
(2013-01-01)
Saebea, D.
;
Arpornwichanop, A.
;
Patcharavorachot, Y.
In this study, an integrated system of SOFC-H+ and ethanol autothermal reformer is proposed. The optimal design and operating parameters are carefully determined to obtain the best possible performance of the integrated SOFC-H+ system satisfying a desired power output of 25 kW.
1
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Design of energy recuperation in a solid oxide fuel cell-gas turbine hybrid system with ethanol as fuel
(2013-01-01)
Saebea, D.
;
Patcharavorachot, Y.
;
Authayanun, S.
;
Arpornwichanop, A.
An ethanol reforming and solid oxide fuel cell-gas turbine (SOFC-GT) hybrid system with anode and/or cathode recirculation is investigated in this study. The aim is to analyze the effect of the anode and cathode recirculation on the performance of SOFC-GT system. The results showed that the hybrid system with both the cathode and anode recirculation achieve the highest system efficiency.
1
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Performance analysis of sofc systems integrated with steam reforming of different renewable fuels
(2012-04-01)
Saebea, D.
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Authayanun, A.
;
Patcharavorachot, Y.
;
Paengjuntuek, W.
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Arponwichanop, A.
This study presents the performance analysis of a solid oxide fuel cell (SOFC) system integrated an external steam reforming process. Various renewable fuels such as ethanol, glycerol and biogas, are considered. Effect of key operating parameters of a steam reformer on hydrogen production for SOFC is investigated. The performance of the SOFC systems fed by different fuels in terms of electrical and termal efficiencies is compared. The results show that the biogas-fuelled SOFC system required the highest energy supply. The SOFC fed by ethanol can achieve the highest electrical and thermal efficiencies.

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