Some problems in measuring thermal conductivity using the coaxial cylinders method. II

Rastorguev, Yu. L.; Ganiev, Yu. A.; Safronov, G. A.

doi:10.1007/bf00860881

Cited by 3 publications

(1 citation statement)

References 7 publications

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“…The experimental data combined in Fig. 1 however have been obtained with different methods; the data of Brykov et al [3] with a steady state hot wire method, those of Ganiev and Rastorguev [4], Geller et al [5], Rastorguev et al [6], and Leidenfrost [7] with a vertical concentric cylinder device, those of Poltz and Jugel [8], Sch6del and Grigull [9], Gurenkova et al [10], and Ogiwara et al [11] with a parallel plate device and our own values with a rotating horizontal cylinder device [12]. Because of the variety of the measuring devices it is scarcely possible that the systematic increase of thermal conductivity with layer thickness, as presented in Fig.…”

Section: Convection and Radiationmentioning

confidence: 99%

A proposal for thermal conductivity standards with special respect to convection and radiation effects

Fischer¹

1986

Wärme- und Stoffübertragung

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Abstract. The influence of convection and especially radiation on measured liquid thermal conductivities is discussed for steady state methods and the transient hot wire method. New radiation and convection free thermal conductivity data are given for a mixture of 90% toluene and 10% ethanol, and for mono-, di-, and triethyleneglycol. The glycols are suitable as thermal conductivity standards for steady state methods and the transient hot wire method. Ein Vorschlag ffir W~irmeleitfdhigkeitsstandards unter besonderer Beriicksichtigung der Konvektion und StrahlungZusammenfassung. Ftir station~ire MeBmethoden und ftir die instation~ire Hitzdrahtmethode wird der Einflul3 der Konvektion und der Strahlung auf die gemessene W~irmeleitffihigkeit von Fliissigkeiten diskutiert. Neue strahlungs-und konvektionsfreie W~irmeleitf~ihigkeitswerte werden ftir ein Gemisch aus 90% Toluol und 10% Ethanol und ftir Mono-, Di-und Triethylenglycol angegeben. Die Glycole sind als W~irmeleitf~ihigkeitsstandard sowohl ffir station~ire Methoden als auch ftir die instation~ire Hitzdrahtmethode geeignet.

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