Heat transfer rate measurement using the optical properties of a

Thermal measuring and testing – Heat flux measurement

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356 43, 374 43, 374 54, 374135, G01K 1700, G01N 2518

Patent

active

047640235

ABSTRACT:
In a method of determining the rate of heat transfer from a surface due to liquid convection, a coating of a material capable of dissolving in the convecting liquid and whose optical properties on irradiation are proportional to the thickness of the coating, is applied to the surface and is then exposed to radiation and to the convecting liquid, the change in the amount of radiation transmitted or reflected from the coating giving an indication of the rate of heat transfer.

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patent: 3174824 (1965-03-01), Lupfer
patent: 3544222 (1970-12-01), Jannasch et al.
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patent: 3982420 (1976-09-01), Blevins et al.
patent: 4320967 (1982-03-01), Edgar
patent: 4431315 (1984-02-01), Utton et al.
patent: 4676883 (1987-06-01), Nelson et al.

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