Please use this identifier to cite or link to this item: http://hdl.handle.net/2445/25056
Title: New experimental apparatus for the study of the Bénard-Rayleigh problem
Author: Moreno, J.
Jiménez, J.
Córdoba, A.
Rojas Blasi, Emilio
Zamora, M.
Keywords: Mesurament
Calor
Mecànica de fluids
Termodinàmica
Mensuration
Heat
Fluid mechanics
Thermodynamics
Issue Date: Jan-1980
Publisher: American Institute of Physics
Abstract: A new experimental system to measure the equivalent thermal conductivity of a liquid with regard to the Bénard-Rayleigh problem was constructed. The liquid is enclosed within walls of polymethylmethacrylate between two copper plates in which there are thermocouples to measure the difference in temperature between the lower and upper surfaces of the layer of liquid. Heat flux is measured by means of a linear heat fluxmeter consisting of 204 thermocouples in series. The fluxmeter was calibrated and the linear relationship that exists between the heat flux and the emf generated was verified. The thermal conductivity of the polymethylmethacrylate employed was measured and measurements of the equivalent conductivity in cylindrical boundaries of two silicone oils were made. The critical value of the temperature difference and the contribution of the convective process to the transmission of heat were determined.
Note: Reproducció del document publicat a: http://dx.doi.org/10.1063/1.1136024
It is part of: Review of Scientific Instruments, 1980, vol. 51, p. 101-104
Related resource: http://dx.doi.org/10.1063/1.1136024
URI: http://hdl.handle.net/2445/25056
ISSN: 0034-6748
Appears in Collections:Articles publicats en revistes (Física Quàntica i Astrofísica)

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