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|Heat pulse line-source method to determine thermal conductivity of consolidated rocks
|Fernández i Ortiga, Manel
Banda, E. (Enric)
Rojas Blasi, Emilio
|Conducció de la calor
Conduction of heat
|American Institute of Physics
|An instrument designed to measure thermal conductivity of consolidated rocks, dry or saturated, using a transient method is presented. The instrument measures relative values of the thermal conductivity, and it needs calibration to obtain absolute values. The device can be used as heat pulse line source and as continuous heat line source. Two parameters to determine thermal conductivity are proposed: TMAX, in heat pulse line source, and SLOPE, in continuous heat line source. Its performance is better, and the operation simpler, in heat pulse line-source mode with a measuring time of 170 s and a reproducibility better than 2.5%. The sample preparation is very simple on both modes. The performance has been tested with a set of ten rocks with thermal conductivity values between 1.4 and 5.2 W m¿1 K¿1 which covers the usual range for consolidated rocks.
|Reproducció del document publicat a: http://dx.doi.org/10.1063/1.1139052
|It is part of:
|Review of Scientific Instruments, 1986, vol. 57, p. 11
|Appears in Collections:
|Articles publicats en revistes (Física Quàntica i Astrofísica)
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