Which is better Pemfc or SOFC?
Which is better Pemfc or SOFC?
PEMFC has a lower capex compared to SOFC but SOFC can utilize natural gas which is cheaper than hydrogen. PEMFC has the highest power to volume ratio, however it runs on hydrogen which has low volumetric density compared to tradition marine fuels.
How much does SOFC cost?
The development of high throughput, automated processes achieving high yield are estimated to push the direct manufacturing cost per kWe for the SOFC fuel cell stack to $370/kWe and $180/kWe for a 10-kWe system at 1,000 units per year and 50,000 units per year, respectively.
How does an SOFC work?
SOFC Operating Principles Fuel is delivered to the anode and oxidant, typically air, is delivered to the cathode. The electrodes are solid porous structures that allow the fuel and air to diffuse to the electrolyte and the products of the electrochemical reaction on the anode side to diffuse away from the electrolyte.
What is a SOFC system?
SOFC consists of two parts, a ‘fuel cell unit’ and a ‘hot storage tank and supplementary boiler unit’. The fuel cell unit generates electricity and simultaneously recovers the exhaust heat as hot water. The hot storage tank and supplementary boiler unit stores the recovered hot water to supply hot water.
What is the best fuel cell technology?
Alkaline Fuel Cells Operating at 60-70ºC (140-158ºF), AFCs are among the most efficient type of fuel cells, reaching up to 60% efficiency and up to 87% combined heat and power.
How much does a fuel cell cost?
In contrast to these battery costs, operators reported an average cost of $33,000 for a fuel cell system for Class I and II lifts (typically 8–10 kW in size), with costs ranging from $32,000 to $34,000.
How does a solid oxide fuel cell work?
A solid oxide fuel cell utilizes the movement of electrons and generates electricity in few basic steps. Natural gas goes through a steam-reforming process. This chemical reaction produces hydrogen (H2), carbon monoxide (CO), carbon dioxide (CO2) and steam (H2O).
What is the operating temperature of SOFC?
800–1000 °C
Solid oxide fuel cells (SOFCs) offer a low-pollution technology to generate electricity electrochemically with high efficiency. Current SOFCs often use yttria-stabilized zirconia or cerium gadolinium oxide as an electrolyte and require an operating temperature of 800–1000 °C to minimize ohmic loss.
How much does a Bloom Energy Server cost?
Installation. The current cost of each hand-made 100 kW Bloom Energy Server is $700,000–800,000.
What is the range of working temperature of SOFC?
between 550 and 1000 °C
The operational temperature of SOFC membrane ranges between 550 and 1000 °C depending on the electrolyte type and thickness as well as electrodes used.
