Radiation effects in the transient hot-wire technique -: Measurement of the thermal conductivity of n-pentane

被引：8

作者：

Shi, Y. ^{[1
]}

Sun, L. ^{[1
]}

Venart, J. E. S. ^{[1
]}

Prasad, R. C. ^{[1
]}

机构：

[1] Univ New Brunswick, Dept Engn, St John, NB E2L 4L5, Canada

来源：

JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY | 2006年 / 86卷 / 03期

关键词：

argon; hot-wire technique; natural convection; n-pentane; thermal conductivity; thermal radiation;

D O I：

10.1007/s10973-006-7711-2

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The transient hot-wire technique is widely used for absolute measurements of the thermal conductivity and thermal diffusivity of fluids. It is well established that fluid radiation effects significantly influence these measurements, especially those for the thermal diffusivity. Corrections for radiation effects are based on the models developed and deviations of the measured data from the ideal line source model. In this paper, the effect of fluid radiation on the measurements of the thermal conductivity of n-pentane is presented. For comparison, the influence of thermal radiation effect on measurement of transparent fluids, such as argon is also shown. The difference between the influence of natural convection and thermal radiation is also demonstrated.

引用

页码：585 / 590

页数：6

共 14 条

[1]

Buyukbicer E. F., 1986, High Temperatures - High Pressures, V18, P55

[2]

Carslaw H.S., 1959, CONDUCTION HEAT SOLI, VSecond, P339

[3] RADIATIVE HEAT-TRANSFER IN TRANSIENT HOT-WIRE MEASUREMENTS OF THERMAL-CONDUCTIVITY [J].

DECASTRO, CAN ;

PERKINS, RA ;

RODER, HM .

INTERNATIONAL JOURNAL OF THERMOPHYSICS, 1991, 12 (06) :985-997

[4]

DECASTRO CAN, 1983, INT J THERMOPHYS, V4, P344

[5]

HEALY JJ, 1976, PHYSICA C, V82, P393

[6] ABSOLUTE MEASUREMENTS OF THE THERMAL-CONDUCTIVITY OF LIQUIDS AT PRESSURES UP TO 500 MPA [J].

MENASHE, J ;

WAKEHAM, WA .

BERICHTE DER BUNSEN-GESELLSCHAFT-PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 1981, 85 (04) :340-347

[7] EFFECT OF ABSORPTION OF RADIATION ON THERMAL-CONDUCTIVITY MEASUREMENTS BY THE TRANSIENT HOT-WIRE TECHNIQUE [J].

MENASHE, J ;

WAKEHAM, WA .

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 1982, 25 (05) :661-673

[8] A HIGH-TEMPERATURE TRANSIENT HOT-WIRE THERMAL-CONDUCTIVITY APPARATUS FOR FLUIDS [J].

PERKINS, RA ;

RODER, HM ;

DECASTRO, CAN .

JOURNAL OF RESEARCH OF THE NATIONAL INSTITUTE OF STANDARDS AND TECHNOLOGY, 1991, 96 (03) :247-269

[9] The thermal conductivity, thermal diffusivity, and specific heat of liquid n-pentane [J].

Sun, L ;

Venart, JES ;

Prasad, RC .

INTERNATIONAL JOURNAL OF THERMOPHYSICS, 2002, 23 (02) :391-420

[10] The thermal conductivity, thermal diffusivity, and heat capacity of gaseous argon [J].

Sun, L ;

Venart, JES ;

Prasad, RC .

INTERNATIONAL JOURNAL OF THERMOPHYSICS, 2002, 23 (02) :357-389

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