Accession Number : AD0633736

Title :   A ROTATING DISC THERMOCELL. II. EXPERIMENTAL.

Descriptive Note : Technical rept.,

Corporate Author : NEW YORK UNIV N Y DEPT OF CHEMISTRY

Personal Author(s) : Sundheim,B. R. ; Sauerwein,W.

Report Date : 15 MAY 1966

Pagination or Media Count : 20

Abstract : A thermocell consisting of a rotating disc electrode and another wire electrode in an electrolytic solution is described. The temperature difference is produced by mounting a heater inside the rotating disc electrode while the temperature of the bulk solution is kept constant at a mean temperature of 21?C. The change of the thermoelectric power for 0.1 and 1.0 N aqueous KC1 solution with Ag/AgCl electrodes was independent of the speed of rotation below 375-400 rpm (laminar flow range). At speeds > 400 rpm the thermoelectric power values became dependent on the rotation speed, presumably because of increasing turbulence of the liquid. In the laminar flow range the mean values were 185 microvolts/deg and 250 microvolts/deg for 1.0 N and 0.1 N aqueous KC1 solutions, respectively. (Author)

Descriptors :   (*THERMOELECTRICITY, *ELECTROLYTIC CELLS), ELECTRODES, DISKS, ROTATION, ELECTROLYTES, HEATERS, POWER, POTASSIUM COMPOUNDS, CHLORIDES, SILVER, SILVER COMPOUNDS, CHLORIDES, TURBULENCE, LAMINAR FLOW, ENERGY CONVERSION

Subject Categories : Electric Power Production and Distribution

Distribution Statement : APPROVED FOR PUBLIC RELEASE