Calorimetric measurements on electrochemical cells with Pd-D cathodes

Conference · Sun Jan 01 04:00:00 EST 1989

DOI:https://doi.org/10.1007/BF01059238· OSTI ID:5529167

Redey, L; Myles, K M; Dees, D; Krumpelt, M; Vissers, D R

Two series of experiments were performed to determine the conditions of cell operation that produce sufficient heat to be useful for the production of energy. In the first series, the results from a differential temperature analysis of identical light- and heavy-water electrochemical cells were too ambiguous and, thus not suitable for evaluating excess heat effects. In the second series, two Pd-D/LiOD-saturated D{sub 2}O/Pt cells were operated at current densities between 15 and 500 mA/cm{sup 2} in a constant-heat-loss-rate twin calorimeter for 460 hours. Water loss measurements during the experiments indicated that the recombination reaction (D{sub 2} + O{sub 2} {yields} D{sub 2}O) did not occur. The D/Pd ratio was determined gravimetrically during the experiments. No excess heat was found within the sensitivity (0.13 W, 0.082 W/cm{sup 3} of Pd, 0.013 W/cm{sup 2} of Pd) and precision ({plus minus}0.3 W) of the calorimeter. 11 refs., 11 figs.

• Research Organization: Argonne National Lab., IL (USA)
• Sponsoring Organization: DOE/ER
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 5529167
• Report Number(s): CONF-8905126-7; ON: DE90002198
• Country of Publication: United States
• Language: English

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