A new approach to optimum design in thermoelectric cooling systems

Yamanashi, Masaki

doi:10.1063/1.362740

Cited by 66 publications

(40 citation statements)

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“…When a TEC system is optimized, it is convenient to rewrite the heat balance Equations (9) and (13), into the dimensionless form as follows [5],…”

Section: Dimensionless Equivalent Heat Balance Equationsmentioning

confidence: 99%

“…This approach includes the Joulean heat loss [5,6]. Thus, we are interested in the analysis of inhomogeneous composite TECS, and we propose a general approach, based in Ioffe's approach, which includes all thermoelectric properties of the TEMs constituting the TECS.…”

Section: Introductionmentioning

confidence: 99%

“…Yamanashi [5] has considered the effects of the thermal resistance of heat exchangers on the performance of a TEC, with a constant thermocouple number. He has obtained the design parameters through the dimensionless heat balance equations.…”

Section: Introductionmentioning

confidence: 99%

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General Approach for Composite Thermoelectric Systems with Thermal Coupling: The Case of a Dual Thermoelectric Cooler

Flores-Niño

Olivares-Robles

Loboda

2015

Entropy

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Abstract:In this work, we show a general approach for inhomogeneous composite thermoelectric systems, and as an illustrative case, we consider a dual thermoelectric cooler. This composite cooler consists of two thermoelectric modules (TEMs) connected thermally in parallel and electrically in series. Each TEM has different thermoelectric (TE) properties, namely thermal conductance, electrical resistance and the Seebeck coefficient. The system is coupled by thermal conductances to heat reservoirs. The proposed approach consists of derivation of the dimensionless thermoelectric properties for the whole system. Thus, we obtain an equivalent figure of merit whose impact and meaning is discussed. We make use of dimensionless equations to study the impact of the thermal conductance matching on the cooling capacity and the coefficient of the performance of the system. The equivalent thermoelectric properties derived with our formalism include the external conductances and all intrinsic thermoelectric properties of each component of the system. Our proposed approach permits us changing the thermoelectric parameters of the TEMs and the working conditions of the composite system. Furthermore, our analysis shows the effect of the number of thermocouples on the system. These considerations are very useful for the design of thermoelectric composite systems. We reproduce the qualitative behavior of a commercial composite TEM connected electrically in series.

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“…When a TEC system is optimized, it is convenient to rewrite the heat balance Equations (9) and (13), into the dimensionless form as follows [5],…”

Section: Dimensionless Equivalent Heat Balance Equationsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

General Approach for Composite Thermoelectric Systems with Thermal Coupling: The Case of a Dual Thermoelectric Cooler

Flores-Niño

Olivares-Robles

Loboda

2015

Entropy

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“…2 and 3) the deposition characteristics of Bi-Te can be determined a priori. MATHEMATICAL DESIGN An analytical model was developed following Yamanashi's approach [4][5] to establish the relation between the required cooling parameters and the TEC structure. In this preliminary model, all of the material properties were assumed to be independent of temperature and heat balance equations were calculated for each interface.…”

Section: Electrodepositionmentioning

confidence: 99%

Electrodeposition Characteristics of Bismuth-Telluride Films

et al. 2004

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This work is a part of an on-going research effort to develop an array of micro thermoelectric coolers (TECs) for highly localized control of temperature at the cellular level. Prefabrication experimentation and modeling were carried out to understand the behavior of the proposed device. Mathematical models were used to identify important device parameters and optimal device dimensions. Preliminary experiments have shown that it is feasible to produce the TECs through electrodeposition of bismuth and telluride on modules produced using a modified multistep LIGA (Lithographie, Galvanoformung and Abformung) technique. The development and characterization of the proposed TECs would enable the bioengineer highly localized control of temperature in a native or artificial tissue system. Thus enabling further usage of low temperatures in biological systems for both destructive (cryosurgical) and beneficial (cryopreservation) procedures.

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“…Considering the inner structure of a thermoelec-tric refrigerator, a significant increase in the cooling load or coefficient of performance (COP) can be achieved by modifying the dimensions of the thermoelectric elements [10]. Yamanashi [11], Chen et al [12], Huang et al [13], and Xuan [14] analyzed the thermoelectric refrigerators in various ways using non equilibrium thermodynamics.…”

Section: Introductionmentioning

confidence: 99%

Performance Prediction and Irreversibility Analysis of a Thermoelectric Refrigerator with Finned Heat Exchanger

2011

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A developed model of commercial thermoelectric refrigerators with finned heat exchanger is established by introducing finite time thermodynamics. A significant novelty is that physical properties, dimension parameters, temperature parameters and flow parameters are all taken into account in the model. Numerical studies and comparative investigation on the performance of a typical commercial water-cooling thermoelectric refrigerator which consists of 127 thermoelectric elements, are performed for cooling load and coefficient of performance. The results show that the maximum cooling load is 2.33 W and the maximum coefficient of performance is 0.54 when the cooling temperature difference is 10 K. Comparing the simulation results of several models, it is found that the heat convection of the heat exchanger and the heat leakage through the air gap are the main factors, which cause irreversibility and decrease the performance. Moreover, the performance can be improved by optimizing the length and cross-section area of thermoelectric elements. The model and calculation method may be applied to not only the analysis and performance prediction of practical thermoelectric refrigerators, but also the design and optimization of heat exchangers.

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A new approach to optimum design in thermoelectric cooling systems

Cited by 66 publications

References 1 publication

General Approach for Composite Thermoelectric Systems with Thermal Coupling: The Case of a Dual Thermoelectric Cooler

General Approach for Composite Thermoelectric Systems with Thermal Coupling: The Case of a Dual Thermoelectric Cooler

Electrodeposition Characteristics of Bismuth-Telluride Films

Performance Prediction and Irreversibility Analysis of a Thermoelectric Refrigerator with Finned Heat Exchanger

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