PDF Publication Title:
Text from PDF Page: 286
It is important to note that the vehicle power train for the fuel cell powered system is similar to that of battery powered vehicles. The power conditioning system requirements for vehicles include low EMI, high efficiency, low cost, and suitable for intermittent use over a 10 to 15 year lifetime. 8.2.7 Power Conversion Architecture for a Fuel Cell Turbine Hybrid Interfaced With a Local Utility Systems studies to date indicate that fuel cell/turbine hybrids could realize a 25 percent increase in efficiency and 25 percent reduction in cost for a comparably sized fuel cell [14,15]. The synergy realized by fuel cell/turbine hybrids derives primarily from using the rejected thermal energy and combustion of residual fuel from a fuel cell to drive the gas turbine. This leveraging of the thermal energy makes the high-temperature molten carbonate (MCFC) and solid oxide fuel cells (SOFC) ideal candidates for hybrid systems. Use of a recuperator contributes to thermal efficiency by transferring heat from the gas turbine exhaust to the fuel and air. Integrating a pressurized SOFC with a micro-turbine generator to yield a system with a nominal capacity of 250kW has shown a power generating efficiency approaching 60 percent [14,15]. During normal steady state operation, the SOFC will produce about 80 percent of the electrical power and the micro-turbine will produce the remaining 20 percent. Effectively, for this design the fuel cell supplants the combustor of the micro-turbine, providing the added benefit of eliminating combustion and combustion by-product formation. Figure 8-21 shows the block diagram for the power conditioning unit of the example 250kW fuel cell turbine hybrid system. Three 100kW SOFC stacks, each generating 200V are connected in series to generate 600V DC. A DC-DC boost converter is employed to convert the 600V DC generated by SOFC to 750V dc-link. The 750V dc-link is then connected to the 360kVA three- phase PWM inverter to generate 480V, 60Hz output. The micro-turbine, on the other hand, typically operates at high speed (96,000 rpm rated speed) and is connected to a 3-phase brush- less permanent magnet generator [18]. The local utility supplies the necessary startup power for both the SOFC and the micro-turbine. 3 x 100 Kw 200V SOFC cells in series 90KVA 3-Phase 3-Phase Transformer Transformer 480V, 60Hz, 3φ Static Isolator + - + - + - DC Boost Chopper + 750V DC 360KVA 3-Phase Inverter + 600V DC - - Microturbine Rectifier Inverter Figure 8-21 Power conditioning unit for the 250kW fuel cell turbine hybrid system 8-41PDF Image | Fuel Cell Handbook (Seventh Edition)
PDF Search Title:
Fuel Cell Handbook (Seventh Edition)Original File Name Searched:
fuel-cell-handbook.pdfDIY PDF Search: Google It | Yahoo | Bing
NFT (Non Fungible Token): Buy our tech, design, development or system NFT and become part of our tech NFT network... More Info
IT XR Project Redstone NFT Available for Sale: NFT for high tech turbine design with one part 3D printed counter-rotating energy turbine. Be part of the future with this NFT. Can be bought and sold but only one design NFT exists. Royalties go to the developer (Infinity) to keep enhancing design and applications... More Info
Infinity Turbine IT XR Project Redstone Design: NFT for sale... NFT for high tech turbine design with one part 3D printed counter-rotating energy turbine. Includes all rights to this turbine design, including license for Fluid Handling Block I and II for the turbine assembly and housing. The NFT includes the blueprints (cad/cam), revenue streams, and all future development of the IT XR Project Redstone... More Info
Infinity Turbine ROT Radial Outflow Turbine 24 Design and Worldwide Rights: NFT for sale... NFT for the ROT 24 energy turbine. Be part of the future with this NFT. This design can be bought and sold but only one design NFT exists. You may manufacture the unit, or get the revenues from its sale from Infinity Turbine. Royalties go to the developer (Infinity) to keep enhancing design and applications... More Info
Infinity Supercritical CO2 10 Liter Extractor Design and Worldwide Rights: The Infinity Supercritical 10L CO2 extractor is for botanical oil extraction, which is rich in terpenes and can produce shelf ready full spectrum oil. With over 5 years of development, this industry leader mature extractor machine has been sold since 2015 and is part of many profitable businesses. The process can also be used for electrowinning, e-waste recycling, and lithium battery recycling, gold mining electronic wastes, precious metals. CO2 can also be used in a reverse fuel cell with nafion to make a gas-to-liquids fuel, such as methanol, ethanol and butanol or ethylene. Supercritical CO2 has also been used for treating nafion to make it more effective catalyst. This NFT is for the purchase of worldwide rights which includes the design. More Info
NFT (Non Fungible Token): Buy our tech, design, development or system NFT and become part of our tech NFT network... More Info
Infinity Turbine Products: Special for this month, any plans are $10,000 for complete Cad/Cam blueprints. License is for one build. Try before you buy a production license. May pay by Bitcoin or other Crypto. Products Page... More Info
CONTACT TEL: 608-238-6001 Email: greg@infinityturbine.com (Standard Web Page)