FEASIBILITY INVESTIGATION OF HEAT-FLOWRATE MEASURING TECHNIQUES.
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 Btu/sec-sq in. and was used to measure steady-state and transient heat flux as high as 4.1 Btu/sec-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)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 1964
- Accession Number
- AD0431189
Entities
People
- J. J. Vrolyk
- P. A. Kinzie
Organizations
- Rocketdyne