Ultra High Temperature Anode Recycle Blower for Solid Oxide Fuel Cell (Phase I Final Report)
- Mohawk Innovative Technology, Inc., Albany, NY (United States)
Under funding from DOE Award DE-FE0031148, Mohawk Innovative Technology, Inc. (MITI) has successfully developed, integrated and tested a prototype ultrahigh speed oil-free blower for use as an Ultra High Temperature Anode Recycle Blower (UHT-ARCB) in a 100 kWe Solid Oxide Fuel Cell (SOFC). MITI’s recycle blower design is hermetically sealed, and features a completely encapsulated permanent magnet motor, which allows it to handle the steam-rich anode recycle gas mixture. At the SOFC’s nominal operating condition, the MITI ARCB rotates at approximately 55000 rpm, raises the pressure of the incoming 621 °C gas from 104 to 112 kPa, and uses less than 1.2 kWe at a rate of approximately 30 g/s. The UHT-ARCB’s thermal management uses the incoming natural gas supply for the SOFC as cooling medium for bearings, seals and motor magnet, along with a water jacket for motor housing cooling to prevent the high temperature gas from affecting the bearing/motor assembly. MITI’s development of this UHT-ARCB will contribute to a reduction of cost and overall balance of plant (BOP) of SOFC systems. The UHT-ARCB recirculates a fraction of the depleted anode exhaust to the fuel-cell inlet. Direct recycling of anode off-gas takes advantage of the water already present in the stream to assist the methane reforming process and inhibit carbon deposition, without the need for an external water supply.
- Research Organization:
- Mohawk Innovative Technology, Inc., Albany, NY (United States)
- Sponsoring Organization:
- USDOE Office of Fossil Energy (FE), Office of Clean Energy Systems (FE-22)
- DOE Contract Number:
- FE0031148
- OSTI ID:
- 1530718
- Report Number(s):
- DOE-MITI-FE0031148
- Resource Relation:
- Related Information: 1. Heshmat, H., and Walton II, J.F., "On The Integration Of Hot Foil Bearings Into Gas Turbine Engines: Theoretical Treatment," Proceedings of ASME Turbo Expo 2019: Turbomachinery Technical Conference and Exposition; GT2019-91710, June 17-21, 2019, Phoenix, AZ.2. Heshmat, H., Walton II, J.F. and Córdova, L.J., "Technology Readiness of 5th and 6th Generation Compliant Foil Bearing for 10 MWE S-CO2 Turbomachinery Systems", The 6th International Supercritical CO2 Power Cycles Symposium, March 27 - 29, 2018, Pittsburgh, Pennsylvania. http://sco2symposium.com/www2/sco2/papers2018/components/072_Paper.pdf3. Heshmat, H., Walton II, J.F., and Nicholson, B.D., "Ultra-High Temperature Compliant Foil Bearings - The Journey to 870°C and Application in Gas Turbine Engines: Experiment," Proceedings of ASME Turbo Expo 2018: Turbomachinery Technical Conference and Exposition; GT2018-75555, June 11-15, 2018, Oslo, Norway.4. Cordova, J.L., Walton J.F. and Heshmat, H., “High Effectiveness, Low Pressure Drop Recuperator For High Speed And Power Oil-Free Turbogenerator,” GT2015-43718, ASME Turbo Expo 2015: Turbine Technical Conference and Exposition, June 15 – 19, 2015, Montréal, Canada
- Country of Publication:
- United States
- Language:
- English
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