Thermal conductivity of mercury vapor to 1000 C.

Author: Siegel, J. R.
Published: United States : [publisher not identified], 1977.
[Oak Ridge, Tennessee] : [U.S. Atomic Energy Commission], 1977.
Physical Description: microfiche : negative ; 11 x 15 cm
Additional Creators: Bonilla, C. F.

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Summary

The method employing the frequency response of a thin hot wire has been used to determine the thermal conductivity of mercury vapor in a temperature range from 254/sup 0/C to 992/sup 0/C with an average superheat range up to 75/sup 0/C. A thin tungsten wire was surrounded by mercury vapor in a cell and heated with an alternating current. The thermal conductivity of the mercury vapor was determined relative to that of argon by comparing the frequency response of the same wire to both mercury vapor and argon. The phenomenon of mercury dimerization is also discussed. Several references on the diatomic nature of mercury vapor at various operating conditions have been correlated and the effects of the disassociation of mercury vapor on its thermal conductivity estimated. An empirical correlation for percent dimer as a function of temperature and pressure is presented.

Report Numbers

COO-3027-33; CONF-770537-12

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Collection

U.S. Atomic Energy Commission depository collection.

Note

DOE contract number: EY-76-S-02-3027
OSTI Identifier 5222738
Research organization: Columbia Univ., New York (USA). Dept. of Chemical Engineering and Applied Chemistry.

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Thermal conductivity of mercury vapor to 1000 C.

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