Evaluation of the waste heat and residual fuel from the solid oxide fuel cell and system power optimization

2017 ◽  
Vol 115 ◽  
pp. 1166-1173 ◽  
Author(s):  
Yingcai Huang ◽  
Qiubao Lin ◽  
Huiying Liu ◽  
Meng Ni ◽  
Xiuqin Zhang
Keyword(s):  
Fuel Cell ◽  
Solid Oxide Fuel Cell ◽  
Power Optimization ◽  
Waste Heat ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
System Power

Energetic Based Organic Fluid Selection for a Solid Oxide Fuel Cell-Organic Rankine Cycle Combined System

2012 ◽  
Vol 622-623 ◽  
pp. 1162-1167
Author(s):  
Han Fei Tuo
Keyword(s):  
Fuel Cell ◽  
Solid Oxide Fuel Cell ◽  
Heat Recovery ◽  
Waste Heat ◽  
Solid Oxide ◽  
Exhaust Gas ◽  
Oxide Fuel ◽  
Gas Temperature ◽  
Selection For ◽  
Exhaust Gas Temperature

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.

Performance Comparison of Internal Reforming Against External Reforming in a Solid Oxide Fuel Cell, Gas Turbine Hybrid System

2005 ◽  
Vol 127 (1) ◽  
pp. 86-90 ◽  
Author(s):  
Eric A. Liese ◽  
Randall S. Gemmen
Keyword(s):  
Fuel Cells ◽  
Fuel Cell ◽  
Solid Oxide Fuel Cell ◽  
Hybrid System ◽  
Waste Heat ◽  
Performance Comparison ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Internal Reforming ◽  
Hybrid Configuration

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.

Waste heat cascade utilisation of solid oxide fuel cell for marine applications

2020 ◽  
Vol 275 ◽  
pp. 124133
Author(s):  
Tiancheng Ouyang ◽  
Zhongkai Zhao ◽  
Jie Lu ◽  
Zixiang Su ◽  
Jiawei Li ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Solid Oxide Fuel Cell ◽  
Waste Heat ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Marine Applications

An efficient strategy exploiting the waste heat in a solid oxide fuel cell system

Energy ◽  
2015 ◽  
Vol 93 ◽  
pp. 900-907 ◽  
Author(s):  
Yuan Wang ◽  
Ling Cai ◽  
Tie Liu ◽  
Junyi Wang ◽  
Jincan Chen
Keyword(s):  
Fuel Cell ◽  
Solid Oxide Fuel Cell ◽  
Waste Heat ◽  
Cell System ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Fuel Cell System ◽  
Efficient Strategy

An integrated solution to harvest the waste heat from a large marine solid oxide fuel cell

2020 ◽  
Vol 223 ◽  
pp. 113318 ◽  
Author(s):  
Tiancheng Ouyang ◽  
Zhongkai Zhao ◽  
Zixiang Su ◽  
Jie Lu ◽  
Zhiping Wang ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Solid Oxide Fuel Cell ◽  
Waste Heat ◽  
Solid Oxide ◽  
Oxide Fuel

Integration of Catalytic Combustion and Heat Recovery With Meso-Scale Solid Oxide Fuel Cell System

2008 ◽  
Author(s):  
Christopher J. Maxey ◽  
Gregory S. Jackson ◽  
Seyed-Abdolreza Seyed Reihani ◽  
Steven C. Decaluwe ◽  
Siddharth Patel ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Solid Oxide Fuel Cell ◽  
Heat Recovery ◽  
Waste Heat Recovery ◽  
Waste Heat ◽  
Solid Oxide ◽  
Catalytic Partial Oxidation ◽  
Oxide Fuel ◽  
Catalytic Combustor ◽  
Meso Scale

To facilitate high-power density operation of a meso-scale solid oxide fuel cell (SOFC) system, fuel processing and anode exhaust catalytic combustor with waste heat recovery are critical components. An integrated modeling study of a catalytic combustor with a solid oxide fuel cell and a catalytic partial oxidation (CPOx) reactor indicates critical aspects of the butane-fueled system design in order to ensure stable operation of the SOFC as well as the combustor and CPOx reactor. The modeled system consists of: 1) a Rh-coated ceramic foam catalytic partial oxidation reactor, 2) a SOFC with a Ni/YSZ structural anode, a dense YSZ electrolyte, and a LSM/YSZ cathode layer, and 3) a Pt-coated anode exhaust combustor with waste heat recovery. Model results for a system designed to produce < 30 W electric power from n-butane show how the design of the inlet-air cooled catalytic combustor can maximize combustion efficiency of the anode exhaust and heat recovery to the system inlet air flow. The model also shows the need to minimize heat loss in the air flow passages in order to maintain stable SOFC operation at 700 °C or higher. There is a strong sensitivity of the system operation to the SOFC operating voltage as well as the overall air to fuel ratio, and these sensitivities place important bounds on the range of operating conditions.

Sign in / Sign up

Export Citation Format

Share Document