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Home / Store / Journals / Electronic Articles / Fusion Science and Technology / Volume 28 / Number 4 / Pages 1720-1731

Calorimetry, Excess Heat, and Faraday Efficiency in Ni-H2O Electrolytic Cells

Zvi Shkedi, Robert C. McDonald, John J. Breen, Stephen J. Maguire, Joe Veranth

Fusion Science and Technology / Volume 28 / Number 4 / Pages 1720-1731

November 1995

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Apparent excess heat is observed in light water electrolytic cells containing a variety of nickel cathodes, a platinum anode, and an electrolyte of K2CO3 in H2O. High-accuracy calorimetric measurements show apparent excess heat in the range of 15 to 37% of input power if a 100% Faraday efficiency is assumed for H2 and O2 gas release. The H2 and O2 gases released during electrolysis are recombined in a vessel external to the cell, and the quantity of recombined H2O is compared with the quantity of H2O expected from 100% efficient electrolysis. The measured Faraday efficiency is shown to be significantly <100%, and conventional chemistry can account for the entire amount of observed apparent excess heat to within an accuracy of better than 0.5%.

 
 
 
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