A novel design of power-cooling cogeneration system driven by solid oxide fuel cell waste heat in ocean-going vessels

2021 ◽  
pp. 128532
Author(s):  
Zhongkai Zhao ◽  
Zhiping Wang ◽  
Shutao Xie ◽  
Mingliang Zhang ◽  
Tiancheng Ouyang
2012 ◽  
Vol 622-623 ◽  
pp. 1162-1167
Author(s):  
Han Fei Tuo

In this study, energetic based fluid selection for a solid oxide fuel cell-organic rankine combined power system is investigated. 9 dry organic fluids with varied critical temperatures are chosen and their corresponding ORC cycle performances are evaluated at different turbine inlet temperatures and exhaust gas temperature (waste heat source) from the upper cycle. It is found that actual ORC cycle efficiency for each fluid strongly depends on the waste heat recovery performance of the heat recovery vapor generator. Exhaust gas temperature determines the optimal fluid which yields the highest efficiency.


2018 ◽  
Vol 230 ◽  
pp. 241-256 ◽  
Author(s):  
Giuseppe Diglio ◽  
Piero Bareschino ◽  
Erasmo Mancusi ◽  
Francesco Pepe ◽  
Fabio Montagnaro ◽  
...  

2019 ◽  
Vol 160 ◽  
pp. 113992 ◽  
Author(s):  
Zhimin Yang ◽  
Houcheng Zhang ◽  
Meng Ni ◽  
Bihong Lin

2005 ◽  
Vol 127 (1) ◽  
pp. 86-90 ◽  
Author(s):  
Eric A. Liese ◽  
Randall S. Gemmen

Solid Oxide Fuel Cell (SOFC) developers are presently considering both internal and external reforming fuel cell designs. Generally, the endothermic reforming reaction and excess air through the cathode provide the cooling needed to remove waste heat from the fuel cell. Current information suggests that external reforming fuel cells will require a flow rate twice the amount necessary for internal reforming fuel cells. The increased airflow could negatively impact system performance. This paper compares the performance among various external reforming hybrid configurations and an internal reforming hybrid configuration. A system configuration that uses the reformer to cool a cathode recycle stream is introduced, and a system that uses interstage external reforming is proposed. Results show that the thermodynamic performance of these proposed concepts are an improvement over a base-concept external approach, and can be better than an internal reforming hybrid system, depending on the fuel cell cooling requirements.


2020 ◽  
Vol 275 ◽  
pp. 124133
Author(s):  
Tiancheng Ouyang ◽  
Zhongkai Zhao ◽  
Jie Lu ◽  
Zixiang Su ◽  
Jiawei Li ◽  
...  

Energy ◽  
2015 ◽  
Vol 93 ◽  
pp. 900-907 ◽  
Author(s):  
Yuan Wang ◽  
Ling Cai ◽  
Tie Liu ◽  
Junyi Wang ◽  
Jincan Chen

2020 ◽  
Author(s):  
Sadegh Safari ◽  
Hassan Ali Ozgoli

In this paper, an electrochemical model was developed to investigate the performance analysis of a Solid Oxide Fuel Cell (SOFC). The curves of voltage, power, efficiency, and the generated heat of cell have been analyzed to accomplish a set of optimal operating conditions. Further, a sensitivity analysis of major parameters that have a remarkable impact on the economy of the SOFC and its residential applications has been conducted. The results illustrate that the current density and cell performance temperature have vital effects on the system efficiency, output power and heat generation of cell of the SOFC. The best system efficiency is approached up to 53.34 % while implementing combined heat and power generation might be further improved up to 86 %. The economic evaluation results indicate that parameters such as overall efficiency, natural gas price and additional produced electricity that has prone to be sold to the national power grid, have a significant impact on the SOFC economy. The results indicate the strong reduction in the purchasing cost of the SOFC, i.e. not more than $2500, and improving the electrical efficiency of SOFC, i.e. not less than 42 %, can be the breakeven points of investment on such systems in residential applications. Also, it is found that the target of this SOFC cogeneration system for residential applications in Iran is relying on considerable technological enhancement of the SOFC, as well as life cycle improvement; improvement in governmental policies; and profound development in infrastructures to mitigate legal constraints.


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