The thermal conductivity of the molten NaNO3-KNO3 eutectic between 525 and 590 K

DiGuilio, Ralph M.; Teja, Amyn S.

doi:10.1007/bf00501942

Cited by 13 publications

(7 citation statements)

References 19 publications

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“…The transient hot-wire apparatus employing a single glass capillary filled with a liquid metal has been used for measuring the thermal conductivity of electrically conducting liquids at high temperatures. The apparatus has an estimated accuracy of ±2% and has been used to measure thermal conductivity up to temperatures of 493 K. Similar cells incorporating quartz capillaries have been used to measure the thermal conductivity of molten salts to 590 K (7). Although other insulated hot-wire methods are capable of higher accuracy, the liquid metal filled glass capillary has been shown to be more versatile and can be used over a broader range of conditions.…”

Section: Discussionmentioning

confidence: 99%

“…The first method was developed by Omotani et al (19) who heated and stretched a section of glass tubing to form the capillary. The second method was introduced by DiGuilio and Teja (6,7). They sealed a quartz capillary into a larger quartz support tube using high-temperature silicone rubber cement or quartz adhesive.…”

Section: Alloush Et Almentioning

confidence: 99%

“…To account for the finite extent of the fluid, Healy et al (7) where b is the inside diameter of the cell, Yu is the zeroorder Bessel function of the second kind, gv are the roots of Jo, the zero-order Bessel function of the first kind.…”

Section: Experimental Apparatusmentioning

confidence: 99%

“…Kestin and Wakeham (13) proposed a method to mathematically account for two wires with slightly different radii. DiGuilio and Teja (7) successfully designed an apparatus using two liquid metal filled glass capillaries with a diameter tolerance of ±10%. As stated earlier, the main drawback of this approach was the sealing of the capillaries.…”

Section: Experimental Apparatusmentioning

confidence: 99%

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Thermal Conductivity of Electrically Conducting Liquids by the Transient Hot-Wire Method

Bleazard¹,

Teja²

1995

J. Chem. Eng. Data

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A relative transient hot-wire apparatus for the measurement of the thermal conductivity of electrically conducting liquids is described. The instrument consists of a single glass capillary filled with mercury to act as an insulated hot wire. The resistance change in the wire with respect to time is used to obtain the thermal conductivity of the liquid surrounding the wire with an estimated accuracy of ±2%. The most significant advantage of the liquid metal filled glass capillary is its increased temperature limit compared to other types of transient hot-wire cells. The use of the new method at temperatures up to 493 K is shown for several aqueous systems, and new data are reported for propionic acid + water mixtures.

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Section: Discussionmentioning

confidence: 99%

Section: Alloush Et Almentioning

confidence: 99%

Section: Experimental Apparatusmentioning

confidence: 99%

Section: Experimental Apparatusmentioning

confidence: 99%

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Thermal Conductivity of Electrically Conducting Liquids by the Transient Hot-Wire Method

Bleazard¹,

Teja²

1995

J. Chem. Eng. Data

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“…When one measures the thermal conductivity of an electrically conductive liquid using this technique, a wire has to be insulated. Ion plating of Al 2 O 3 , 2 dip coating with SiO 2 slurry, 3 liquid metal in a glass capillary, 4,5 and anodic oxidation 6 have been utilized for insulating a wire probe for applying an electrically conductive liquid.…”

mentioning

confidence: 99%

Internal and External Oxidation of Pt(Al) Solid Solution at Elevated Temperatures

Nanko

Ozawa

Maruyama

2000

J. Electrochem. Soc.

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High temperature oxidation of Pt(Al) solid solution and Pt(Al) with Pt 3 Al was investigated in order to prepare a Pt wire with an external Al 2 O 3 film for a hot-wire technique to measure thermal conductivities of fused metals. At temperatures from 1373 to 1673 K in air, Pt-4.6 mol % Al (solid solution) indicated internal oxidation. Continuous Al 2 O 3 scales developed on Pt-9.4 mol % Al (solid solution) and Pt-13.1 mol % (the two-phase alloy). External scales formed on those alloys after high temperature oxidation under low oxygen pressure of Ar-10%H 2 -0.6%H 2 O gas mixture. The oxidation rate increased with increasing Al content and oxygen partial pressure. The Al concentration at the transition from internal to external oxidation was determined by using oxygen permeability through Pt-Al alloys calculated from internal oxidation kinetics.) unless CC License in place (see abstract). ecsdl.org/site/terms_use address. Redistribution subject to ECS terms of use (see 130.237.29.138 Downloaded on 2015-03-08 to IP ) unless CC License in place (see abstract). ecsdl.org/site/terms_use address. Redistribution subject to ECS terms of use (see 130.237.29.138 Downloaded on 2015-03-08 to IP

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Transport Properties of Molten Salts

Okada

Modern Aspects of Electrochemistry

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The thermal conductivity of the molten NaNO3-KNO3 eutectic between 525 and 590 K

Cited by 13 publications

References 19 publications

Thermal Conductivity of Electrically Conducting Liquids by the Transient Hot-Wire Method

Thermal Conductivity of Electrically Conducting Liquids by the Transient Hot-Wire Method

Internal and External Oxidation of Pt(Al) Solid Solution at Elevated Temperatures

Transport Properties of Molten Salts

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