PDF Publication Title:
Text from PDF Page: 122
Figure 4-5 Influence of Temperature on O2, (air) Reduction in 12 N KOH. Source: Fig. 10, p. 324, Reference (21). Early data by Clark, et al. (22) indicated a temperature coefficient for AFCs operating between 50 to 70 °C of about 3 mV/°C at 50 mA/cm2, and cells with higher polarization had higher temperature coefficients under load. Later measurements by McBreen, et al. (23) on H2/air single cells (289 cm2 active area, carbon-based Pd anode and Pt cathode) with 50 percent KOH showed that the temperature coefficient above 60 °C was considerably lower than that obtained at lower temperatures, as shown in Figure 4-6. The McBreen data suggest the following expressions for evaluating the change in voltage (∆VT) as a function of temperature (T) at 100 mA/cm2: or ∆Vt (mV) = 4.0 (T2-T1) for T < 63 °C (4-5) ∆Vt (mV) = 0.7 (T2-T1) for T > 63 °C (4-6) Alkaline cells exhibit reasonable performance when operating at low temperatures (room temperature up to about 70 °C). This is because the conductivity of KOH solutions is relatively high at low temperatures. For instance, an alkaline fuel cell designed to operate at 70 °C will reduce to only half power level when its operating temperature is reduced to room temperature (24). 4-10PDF 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 | RSS | AMP |