The thermal conductivity of toluene and water

Ramires, M. L. V.; Fareleira, João M. N. A.; Castro, C. A. Nieto de; Dix, M.; Wakeham, W. A.

doi:10.1007/bf00503676

Cited by 17 publications

(25 citation statements)

References 14 publications

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“…This one hot-wire probe was firstly validated by measurements in water and toluene (22 • C). Ten successive measurements give water and toluene thermal conductivities of 0.602 W/mK and 0.1313 W/mK, respectively, in good agreement with bibliographic data [6]. The ten successive measurements give a standard deviation of 0.008 W/mK for the water and 0.002 W/mK for the toluene.…”

Section: Methodssupporting

confidence: 82%

“…The method has been particularly advanced these last forty years thanks to very accurate measurements, firstly due to two wires, electric bridges, and small-size devices and secondly due to finite-element simulations [2][3][4][5]. The THW method has been used for pure phases as gas, liquids [3,[6][7][8][9][10][11], solids, and melts [4,5]. The method was also developed for measurements in electroconducting and in highly corrosive liquids [12][13][14][15].…”

Section: Introductionmentioning

confidence: 99%

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Simplified Transient Hot-Wire Method for Effective Thermal Conductivity Measurement in Geo Materials: Microstructure and Saturation Effect

Merckx

Dudoignon

Garnier

et al. 2012

Advances in Civil Engineering

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The thermal conductivity measurement by a simplified transient hot-wire technique is applied to geomaterials in order to show the relationships which can exist between effective thermal conductivity, texture, and moisture of the materials. After a validation of the used "one hot-wire" technique in water, toluene, and glass-bead assemblages, the investigations were performed (1) in glassbead assemblages of different diameters in dried, water, and acetone-saturated states in order to observe the role of grain sizes and saturation on the effective thermal conductivity, (2) in a compacted earth brick at different moisture states, and (3) in a limehemp concrete during 110 days following its manufacture. The lime-hemp concrete allows the measurements during the setting, desiccation and carbonation steps. The recorded ΔT/ ln(t) diagrams allow the calculation of one effective thermal conductivity in the continuous and homogeneous fluids and two effective thermal conductivities in the heterogeneous solids. The first one measured in the short time acquisitions (<1 s) mainly depends on the contact between the wire and grains and thus microtexture and hydrated state of the material. The second one, measured for longer time acquisitions, characterizes the mean effective thermal conductivity of the material.

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Section: Methodssupporting

confidence: 82%

Section: Introductionmentioning

confidence: 99%

Simplified Transient Hot-Wire Method for Effective Thermal Conductivity Measurement in Geo Materials: Microstructure and Saturation Effect

Merckx

Dudoignon

Garnier

et al. 2012

Advances in Civil Engineering

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“…The average over the twenty values from the five sets of experiments gives the thermal conductivity of distilled water as 0.6154 W/m-K, with a standard deviation of 0.027. The present measurement shows excellent agreement with the experimental measurement by Ramires et al, 11 who reported a value of 0.6150±0.0006 W/m-K at 30 o C. The average over the fifteen values from the five sets of experiments gives the thermal conductivity of toluene as 0.1306 W/m-K, with a standard deviation of 0.002. The present measurement shows excellent agreement with the experimental measurement by Ramires et al, 11 who reported a value of 0.129±0.01 W/m-K at 30 o C. After benchmarking of the experimental set-up, the thermal conductivity of water-Al 2 O 3 nano fluid is measured for different volume concentrations (0.1%-3%) and at 30 o C.…”

Section: Resultssupporting

confidence: 91%

Investigation of particle size effect on thermal conductivity enhancement of distilled water-Al2 O3 nano fluids

Kokate¹,

Sonawane²

2019

FMRIJ

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“…From the aforementioned sets, 25 were considered as primary data. The data of Sun et al, 12 Watanabe and Seong, 13 Watanabe, 17 Assael and Dalaouti, 14 Assael et al, 20 Perkins et al, 15,21 Lei et al, 16 Ramires et al, 18,22 Yamada et al, 19 Taxis et al, 23 Charitidou et al, 24 Nieto de Castro et al, 26 and Nagasaka and Nagashima, 28 were all performed in transient hot-wire instruments in an absolute way, exhibited very low uncertainty (typically 60.5%), and fulfill the aforementioned criteria for primary data. The data of Wu et al 10,11 and Kashiwagi et al, 27 performed also in transient hot-wire instruments but of slightly higher uncertainty, were also included in the primary data sets.…”

Section: Methodsmentioning

confidence: 94%

Reference Correlation of the Thermal Conductivity of Toluene from the Triple Point to 1000 K and up to 1000 MPa

Assael

Mylona

Huber

et al. 2012

Journal of Physical and Chemical Reference Data

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This paper contains new, representative equations for the thermal conductivity of toluene. The equations are based in part upon a body of experimental data that has been critically assessed for internal consistency and for agreement with theory whenever possible. Although there are a sufficiently large number of data at normal temperatures, data at very low and very high temperatures as well as near the critical region are scarce. In the case of the dilute-gas thermal conductivity, a theoretically based correlation was adopted in order to extend the temperature range of the experimental data. Moreover, in the critical region, the experimentally observed enhancement of the thermal conductivity is well represented by theoretically based equations containing just one adjustable parameter. The correlations are applicable for the temperature range from the triple point to 1000 K and pressures up to 1000 MPa. The overall uncertainty (considered to be estimates of a combined expanded uncertainty with a coverage factor of two) of the proposed correlation is estimated, for pressures less than 700 MPa and temperatures less than 550 K, to be less than 3% for the liquid, while for the region 550 K ≤ T ≤ 700 K the uncertainty is estimated to be 4%. For the region T > 700 K and 500 MPa ≤ p ≤ 1000 MPa, the equations can safely be used with an uncertainty of the order of 10%. Finally, the uncertainty along the saturation line is estimated to be 2% with a coverage factor of two.

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The thermal conductivity of toluene and water

Cited by 17 publications

References 14 publications

Simplified Transient Hot-Wire Method for Effective Thermal Conductivity Measurement in Geo Materials: Microstructure and Saturation Effect

Simplified Transient Hot-Wire Method for Effective Thermal Conductivity Measurement in Geo Materials: Microstructure and Saturation Effect

Investigation of particle size effect on thermal conductivity enhancement of distilled water-Al2 O3 nano fluids

Reference Correlation of the Thermal Conductivity of Toluene from the Triple Point to 1000 K and up to 1000 MPa

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