Thermodynamics of Thermoelectric Phenomena and Applications

Goupil, Christophe; Seifert, W.; Zabrocki, Knud; Müller, E.; Snyder, G. Jeffrey

doi:10.3390/e13081481

Cited by 275 publications

(278 citation statements)

References 122 publications

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“…we note that the optimal entropy flow rate ex o S is equal to half of the cutoff entropy flow rate ex sc S in the case of an exo-reversible heat engine which recalls a well-known result in the field of thermoelectric conversion [46]. By injecting the optimal entropy flow rate in (7), we obtain the expression of maximum output power of the exo-reversible heat engine:…”

Section: Determination Of the Maximum Mechanical Power And The Associmentioning

confidence: 69%

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Association of Finite-Dimension Thermodynamics and a Bond-Graph Approach for Modeling an Irreversible Heat Engine

Dong

El-Bakkali

Feidt

et al. 2012

Entropy

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Abstract:In recent decades, the approach known as Finite-Dimension Thermodynamics has provided a fruitful theoretical framework for the optimization of heat engines operating between a heat source (at temperature T hs ) and a heat sink (at temperature T cs ). We will show in this paper that the approach detailed in a previous paper [1] can be used to analytically model irreversible heat engines (with an additional assumption on the linearity of the heat transfer laws). By defining two dimensionless parameters, the intensity of internal dissipation and heat leakage within a heat engine were quantified. We then established the analogy between an endoreversible heat engine and an irreversible heat engine by using the apparent temperatures (T cs → T λ,φ cs , T hs → T

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Section: Determination Of the Maximum Mechanical Power And The Associmentioning

confidence: 69%

“…This is again a well-known result in the field of thermoelectric conversion [46]. The optimal electric current is defined by:…”

Section: Determination Of the Maximum Mechanical Power And The Associmentioning

confidence: 70%

Association of Finite-Dimension Thermodynamics and a Bond-Graph Approach for Modeling an Irreversible Heat Engine

Dong

El-Bakkali

Feidt

et al. 2012

Entropy

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“…When treating the extensive variables entropy S and electrical charge q equal in rank, the description of the thermoelectric effect by the Onsager-de Groot-Callen model (see Callen (2012), Goupil et al (2011)) takes a highly symmetric form:…”

mentioning

confidence: 99%

“…2) will have an even more rudimentary form. Remember, instead of the entropy per charge carrier S Ã , widely the Seebeck coefficient α is used to describe the material's property, which has then the meaning of entropy transported per unit charge; see Scott (1962), Goupil et al (2011):…”

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confidence: 99%

A High-Temperature Thermoelectric Generator Based on Oxides

Feldhoff

Geppert

2014

Energy Harvesting and Systems

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The thermoelectric energy conversion is described in terms of fluxes of extensive variables entropy and charge, which gives a clear meaning to the figure of merit and to the power factor. Strength and sign of coupling of entropy current and electrical current is decisive for the function of a thermoelectric generator, which was built from n-type and p-type oxide ceramics to be suitable for the high-temperature range.

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“…This is considered in detail by Gray [2] and Iordanishvili and Babin [4]. Goupil [5,6] studied non-stationary operation with Onsager approach and calculates for thermoelectric device the important parameters for transient regimes: time constant τ and capacitance C.…”

Section: Quasi-stationary Thermoelectricitymentioning

confidence: 99%

Non-Stationary Thermoelectric Generators

Stockholm¹

2016

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

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A review of theoretical publications on non-steady thermoelectrics is given. Review concerns different aspects of non-stationary and pulsed processes in thermoelectric materials and devices. Theoretical analysis of dynamic behaviour of thermoelectric devices, including analysis of small and large signals of thermoelectric generator, is given and details of concepts of quasi-equilibrium thermoelectricity are discussed as well. Special attention is paid to theoretical study of the non-routine regime of nonsteady thermoelectricity-fast-time dependence of thermoelectric properties when material or device is well out of equilibrium. Theoretical findings of fast-time dependence give reason to believe that it can increase the output electrical power of thermoelectric generator compared to stationary regime of operation. We also present experimental results obtained with first non-stationary thermoelectric generator prototype, which was designed for operation in fast-time dependence mode. Several research teams are presently making and testing devices to confirm that more electrical power can be obtained in AC mode (AC frequency about hundreds of kHz) than in DC mode. Descriptions with an analysis are given.

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Thermodynamics of Thermoelectric Phenomena and Applications

Cited by 275 publications

References 122 publications

Association of Finite-Dimension Thermodynamics and a Bond-Graph Approach for Modeling an Irreversible Heat Engine

Association of Finite-Dimension Thermodynamics and a Bond-Graph Approach for Modeling an Irreversible Heat Engine

A High-Temperature Thermoelectric Generator Based on Oxides

Non-Stationary Thermoelectric Generators

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