Absolute scale of thermoelectricity III

Roberts, R. B.; Righini, F.; Compton, R.C.

doi:10.1080/13642818508238957

Cited by 73 publications

(42 citation statements)

References 4 publications

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“…The thermoelectric power of tungsten and W-26 wt% Re were previously calibrated with a 'platinum 67' wire. Its absolute thermoelectric power was given by Roberts [21]. The error in the final results is estimated to be no more than ± 0.4µΩ.cm for the resistivity and ± 0.5 µV/°C for the thermoelectric power in the whole temperature range studied.…”

Section: Experimental Methodsmentioning

confidence: 99%

Electrical and thermal conductivities and Seebeck coefficient of liquid copper–bismuth alloys

Khalouk¹,

Chaïb²,

Gasser³

2009

Philosophical Magazine

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Section: Experimental Methodsmentioning

confidence: 99%

Electrical and thermal conductivities and Seebeck coefficient of liquid copper–bismuth alloys

Khalouk¹,

Chaïb²,

Gasser³

2009

Philosophical Magazine

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“…Most of the material thermopower is measured based on platinum. Thus, manipulation of absolute thermopower of platinum and EMF of thermoelements relative to platinum is necessary [8][9][10]. Figure 2 presents a plot of the absolute thermopowers of type K and type N thermoelements and platinum, which will be used as reference values in the measurement.…”

Section: Measurement Principlementioning

confidence: 99%

An Electromotive Force Measurement System for Alloy Fuels

Xing

Jensen

Ban

et al. 2010

Volume 7: Fluid Flow, Heat Transfer and Thermal Systems, Parts a and B

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The development of advanced nuclear fuels requires a better understanding of the transmutation and micro-structural evolution of the materials. Alloy fuels have the advantage of high thermal conductivity and improved characteristics in fuelcladding chemical reaction. However, information on thermodynamic and thermophysical properties is limited. The objective of this project is to design and build an experimental system to measure the thermodynamic properties of solid materials from which the understanding of their phase change can be determined. The apparatus was used to measure the electromotive force (EMF) of several materials in order to calibrate and test the system. The EMF of chromel was measured from 100°C to 800°C and compared with theoretical values. Additionally, the EMF measurement of Ni-Fe alloy was performed and compared with the Ni-Fe phase diagram. The prototype system is to be modified eventually and used in a radioactive hot-cell in the future.

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“…measurements of Thomson coefficient of lead, copper, and platinum [23][24][25]. Thomson coefficient was measured for lead in temperature range from 7 K (i.e., from superconducting transition temperature) to 600 K (up to nearly melting temperature).…”

Section: Thermoelectrics For Power Generation -A Look At Trends In Thmentioning

confidence: 99%

“…Roberts [23,24] α Cu (μV/K) Roberts [24] α Pt (μV/K) Roberts [25] α Pt (μV/K) Rudnitskii [20] In practice, for measuring thermopower at high temperature (above 100 K) are used thermocouples copper-constantan and platinum-platinum/rhodium and reference electrode of platinum or copper, respectively. For both, platinum and copper, the absolute thermopower was accurately determined by Roberts only above room temperature.…”

Section: Thermoelectrics For Power Generation -A Look At Trends In Thmentioning

confidence: 99%

Methods and Apparatus for Measuring Thermopower and Electrical Conductivity of Thermoelectric Materials at High Temperatures

Бурков¹,

Федотов²,

Новиков³

2016

Thermoelectrics for Power Generation - A Look at Trends in the Technology

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The principles and methods of thermopower and electrical conductivity measurements at high temperatures (100-1000 K) are reviewed. These two properties define the socalled power factor of thermoelectric materials. Moreover, in combination with thermal conductivity, they determine efficiency of thermoelectric conversion. In spite of the principal simplicity of measurement methods of these properties, their practical realization is rather complicated, especially at high temperatures. This leads to large uncertainties in determination of the properties, complicates comparison of the results, obtained by different groups, and hinders realistic estimate of potential thermoelectric efficiency of new materials. The lack of commonly accepted reference material for thermopower measurements exaggerates the problem. Therefore, it is very important to have a clear understanding of capabilities and limitations of the measuring methods and set-ups. The chapter deals with definitions of thermoelectric parameters and principles of their experimental determination. Metrological characteristics of state-of-the-art experimental set-ups for high temperature measurements are analyzed.

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Absolute scale of thermoelectricity III

Cited by 73 publications

References 4 publications

Electrical and thermal conductivities and Seebeck coefficient of liquid copper–bismuth alloys

Electrical and thermal conductivities and Seebeck coefficient of liquid copper–bismuth alloys

An Electromotive Force Measurement System for Alloy Fuels

Methods and Apparatus for Measuring Thermopower and Electrical Conductivity of Thermoelectric Materials at High Temperatures

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