Fuel Cells- Why(cont'd) Quiet No moving parts Long device life Competitive price 1 g Pt/1 kW cell =$20-$50/kW Relatively low weight and small size 1 kg/kW
Fuel Cells - Why (cont’d) Quiet No moving parts Long device life Competitive price 1 g Pt/1 kW cell = $20-$50/kW) Relatively low weight and small size 1 kg/kW
Efficiency Heat engine Second Law-Carnot cycle Top efficiency 40% Higher temperatures, higher efficiency Fuel cell No such limitations
Efficiency Heat engine Second Law - Carnot cycle Top efficiency 40% Higher temperatures, higher efficiency Fuel Cell No such limitations
Fuel Cells why not? High initial cost-difficult to enter market Technology unfamiliar to power industry No existing infrastructure Regulatory
Fuel Cells - Why Not? High initial cost - difficult to enter market Technology unfamiliar to power industry No existing infrastructure Regulatory
History 1839 Sir William grove Electrolysis of water Fatherof the fuel Cell 1889 Ludwig Mond and charles Langer/ fuel cell First practical device based on pt Figure 6, 6. Ihe Bacon high pressure H, O, cell. (By courtesy of Mr. I 1932 Francis bacon Bacon Alkali=electrolyte Hart, A.B. Womack, G.J. Fuel Cells: Theory and Application Chapman and Hall: London, 1967 Nickel=electrodes
History 1839 Sir William Grove Electrolysis of water “Father” of the Fuel Cell 1889 Ludwig Mond and Charles Langer “fuel cell” First practical device based on Pt 1932 Francis Bacon Alkali=electrolyte Nickel=electrodes Hart, A.B.; Womack, G.J. Fuel Cells: Theory and Application Chapman and Hall: London, 1967
History (Cont'd 1912-1942 Bauer Molten alkali carbonate electrolyte, solid C anode@ 10000C 1945 davtyan Mixed carbonates and oxides with sand separator work basis for post-war fuel cell work 1950S NASA
History (Cont’d) 1912-1942 Bauer Molten alkali carbonate electrolyte, solid C anode @ 10000C 1945 Davtyan Mixed carbonates and oxides with sand separator work basis for post-war fuel cell work 1950’s NASA