Method and apparatus for measuring fluid thermal conductivity

Details Method and apparatus for measuring fluid thermal conductivity Method and apparatus for measuring fluid thermal conductivity

1993-06-21

1994-09-20

Gutierrez, Diego F. F.

Thermal measuring and testing

Determination of inherent thermal property

Thermal conductivity

374164, G01N 2518, G01K 114

Patent

active

053483944

ABSTRACT:
A heating sensor is disposed within a pipe with a clearance between an inner wall of the pipe and an outer surface of the heating sensor such that a measurement of thermal conductivity is free from any influence of a convective heat transfer. Temperatures of the fluid and the heating sensor are measured and a differential temperature therebetween in steady state heating is determined. A correlation is established between the differential temperature and a thermal conductivity of the fluid and is utilized to obtain the thermal conductivity of this fluid.

REFERENCES:
patent: 2475138 (1949-07-01), Hood, Jr. et al.
patent: 3672205 (1972-06-01), Leidenfrost
patent: 4232543 (1980-11-01), Eguchi et al.

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