Disciplines
Energy Systems
Abstract (300 words maximum)
The need to eliminate carbon emissions coupled with intensified energy demands have led to an intensified research and development activities in clean energy technology. Taking advantage of fuels such as green hydrogen, solid oxide fuel cells (SOFC) power systems can serve as a potential energy conversion system. SOFCs combine O2 from air and H2 gas to generate electricity, consequently producing water (H2O) as the only byproduct of the electrochemical reaction. SOFCs typically have an operational temperature in the range of 500-900C and generate electricity without the requirement of recharging, so long as the fuel is supplied. A single SOFC cell contains a porous cathode electrode where oxygen reduction reaction takes place (ORR), a porous anode electrode where hydrogen oxidation reaction (HOR) occurs. A dense electrolyte separates the anode and cathode, and an interconnect (IC) is placed on both electrodes that acts like a current collector. ICs are fabricated using chromia-forming alloys due to their high electrical conductivity and robust resistance to oxidation and corrosion. Oxidation of behavior of these alloys and their influence on the electrical property of oxide scales under complex SOFC operating atmosphere largely remains unknow. This experimental research work is focused on understanding the oxidation behavior of select commercial chromia and alumina forming IC alloys measurement of resistivity at elevated temperatures and the calculated time and temperature-dependent ASR will be presented. Implications of oxidation and corrosion of alloys at high temperatures under complex gas atmosphere and their effect on the electric conductive pathway will be discussed. Applications of this research pertaining to transportation, residential and commercial systems in energy storage and conversion and study its effect on the area-specific resistance (ASR) under SOFC operating conditions. Experimental details regarding the technologies will be presented.
Academic department under which the project should be listed
SPCEET - Robotics and Mechatronics Engineering
Primary Investigator (PI) Name
Ashish Aphale
Included in
Optimization of Metallic Interconnectors for Clean Energy Power Systems
The need to eliminate carbon emissions coupled with intensified energy demands have led to an intensified research and development activities in clean energy technology. Taking advantage of fuels such as green hydrogen, solid oxide fuel cells (SOFC) power systems can serve as a potential energy conversion system. SOFCs combine O2 from air and H2 gas to generate electricity, consequently producing water (H2O) as the only byproduct of the electrochemical reaction. SOFCs typically have an operational temperature in the range of 500-900C and generate electricity without the requirement of recharging, so long as the fuel is supplied. A single SOFC cell contains a porous cathode electrode where oxygen reduction reaction takes place (ORR), a porous anode electrode where hydrogen oxidation reaction (HOR) occurs. A dense electrolyte separates the anode and cathode, and an interconnect (IC) is placed on both electrodes that acts like a current collector. ICs are fabricated using chromia-forming alloys due to their high electrical conductivity and robust resistance to oxidation and corrosion. Oxidation of behavior of these alloys and their influence on the electrical property of oxide scales under complex SOFC operating atmosphere largely remains unknow. This experimental research work is focused on understanding the oxidation behavior of select commercial chromia and alumina forming IC alloys measurement of resistivity at elevated temperatures and the calculated time and temperature-dependent ASR will be presented. Implications of oxidation and corrosion of alloys at high temperatures under complex gas atmosphere and their effect on the electric conductive pathway will be discussed. Applications of this research pertaining to transportation, residential and commercial systems in energy storage and conversion and study its effect on the area-specific resistance (ASR) under SOFC operating conditions. Experimental details regarding the technologies will be presented.