Accession Number:

AD0431189

Title:

FEASIBILITY INVESTIGATION OF HEAT-FLOWRATE MEASURING TECHNIQUES.

Descriptive Note:

Final rept., Dec 62-Aug 63,

Corporate Author:

ROCKETDYNE CANOGA PARK CALIF

Personal Author(s):

Report Date:

1964-01-01

Pagination or Media Count:

152.0

Abstract:

The design of a zero blockage heat-flowrate transducer is discussed. The measuring technique is one in which 1 all of the flow measured is normal to and passes through two precisely located cross sections of a thermally conducting material, and 2 the electrical output is a precise measure of the integral average differential temperature between these cross sections and is proportional to the heat flowrate through them. Fabrication techniques are considered, and a step-by-step description of the assembly of an experimental transducer is described. The finished transducer was calibrated in the heat-flux range of 0 to 2.5 Btusec-sq in. and was used to measure steady-state and transient heat flux as high as 4.1 Btusec-sq in. Hot-side temperatures up to 865 F 463 C were reached. It was concluded that it is feasible to use miniaturized transducers, which can be installed directly in thin walls without special cooling provision, to measure high steady-state or dynamic heat flux. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE