Combustion-Driven Thermal Transpiration Based Minature SOFC Power Generation Device

2011 ◽  
Author(s):  
Pingying Zeng ◽  
Kang Wang ◽  
Nancy Menapace ◽  
Jeongmin Ahn
Keyword(s):  
Power Generation ◽  
Fuel Cell ◽  
Solid Oxide Fuel Cell ◽  
Power Density ◽  
Catalytic Combustion ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Power Generator ◽  
Thermal Transpiration ◽  
Power Generation Device

A miniature pump was designed in this study, based on a catalytic combustion-driven thermal transpiration. The designed pump was further used to build a miniature power generator that has self-pumping and power generation integrated into one device, has no moving parts and operates only on thermal and electrochemical energy supplied by hydrocarbon fuels. A solid oxide fuel cell tested with this power generator obtained a power density of 40 mW.cm−2.

Non-Propulsive Miniature Power Device Based on SOFC and Combustion-Driven Thermal Transpiration Pump

2011 ◽  
Author(s):  
Pingying Zeng ◽  
Kang Wang ◽  
Jeongmin Ahn
Keyword(s):  
Power Generation ◽  
Fuel Cell ◽  
Solid Oxide Fuel Cell ◽  
Solid Oxide ◽  
Hydrocarbon Fuels ◽  
Power Device ◽  
Oxide Fuel ◽  
Power Generator ◽  
Micro Scale ◽  
Thermal Transpiration

A meso/micro-scale self-sustaining power generator that is self-contained, has pumping and power generation integrated into one device, has no moving parts and operates only on thermal and electrochemical energy supplied by hydrocarbon fuels, was demonstrated. A solid oxide fuel cell tested with the device obtained a power of 20 mW/cm2.

Power Generation Properties of Microtubular Solid Oxide Fuel Cell Bundle Under Pressurized Conditions

2010 ◽  
Vol 8 (2) ◽  
Author(s):  
S. Hashimoto ◽  
Y. Liu ◽  
K. Asano ◽  
F. Yoshiba ◽  
M. Mori ◽  
...  
Keyword(s):  
Power Generation ◽  
Fuel Cell ◽  
Solid Oxide Fuel Cell ◽  
Power Density ◽  
Open Circuit ◽  
Solid Oxide ◽  
Operating Pressure ◽  
Power Gain ◽  
Oxide Fuel ◽  
Power Enhancement

A microtubular solid oxide fuel cell (SOFC) bundle was developed based on a new design. Anode-supported microtubular SOFCs with the cell configuration, La0.6Sr0.4Co0.2Fe0.8O3 (LSCF)-Ce0.9Gd0.1O1.95 (CGO) cathode/CGO electrolyte/Ni-CGO anode were fabricated and bundled in a porous LSCF current-collecting cube with sides of 1 cm. The power generation of the fabricated SOFC bundle was measured under pressurized conditions. Using humidified 30% H2/N2 mixture gas and air, the cubic power density of the bundle at 500°C under atmospheric pressure (0.1 MPa) was 0.47 W cm−3 at 0.4 A cm−2. With increasing operating pressure, the performance increased, and the cubic power density reached 0.66 W cm−3 at 0.6 MPa. The power enhancement brought about by pressurization was due to increased open circuit voltage and reduced polarization resistance. After comparing the power gain of the pressurized SOFC and the power consumption gain of the air compressor used for pressurization, it was found that pressurized cell operation exhibited the highest actual power gain at around 0.3 MPa.

Doped Ceria Based Solid Oxide Fuel Cell Electrolytes and their Sintering Aspects: An Overview

2016 ◽  
Vol 835 ◽  
pp. 199-236 ◽  
Author(s):  
Pradyot Datta
Keyword(s):  
Power Generation ◽  
Fuel Cell ◽  
Solid Oxide Fuel Cell ◽  
Operating Temperature ◽  
Solid Oxide ◽  
Ion Conductivity ◽  
Doped Ceria ◽  
Oxide Fuel ◽  
Oxygen Ion Conductivity ◽  
Oxygen Ion

Depletion of fossil fuel at an alarming rate is a major concern of humankind. Consequently, researchers all over the world are putting a concerted effort for finding alternative and renewable energy. Solid oxide fuel cell (SOFC) is one such system. SOFCs are electrochemical devices that have several advantages over conventional power generation systems like high efficiency of power generation, low emission of green house gases and the fuel flexibility. The major research focus of recent times is to reduce the operating temperature of SOFC in the range of 500 to 700 °C so as to render it commercially viable. This reduction in temperature is largely dependent on finding an electrolyte material with adequate oxygen ion conductivity at the intended operating temperature. One much material is Gadolinia doped Ceria (CGO) that shows very good oxygen ion conductivity at the intended operation temperature. The aim of this overview is to highlight the contribution that materials chemistry has made to the development of CGO as an electrolyte.

Power Generation Characteristics of Solid Oxide Fuel Cell Fueled by Nitrogenous Compound

2019 ◽  
Vol 91 (1) ◽  
pp. 367-371
Author(s):  
Ryoichi Morikawa ◽  
Tatsuyoshi Sasaki ◽  
Shinsuke Ohyagi ◽  
Takashi Wakabayashi
Keyword(s):  
Power Generation ◽  
Fuel Cell ◽  
Solid Oxide Fuel Cell ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Nitrogenous Compound
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