Variable thermal resistor based on self-powered Peltier effect

Min, Gao; Yatim, Nadhrah Md

doi:10.1088/0022-3727/41/22/222001

Cited by 23 publications

(14 citation statements)

References 7 publications

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“…The change in the temperature difference is inevitable because of inherent thermoelectric processes described in a recent publication. 5 This problem was resolved owing to advances in modern electronic measurement systems. Such a system uses an ''electronic load'' and can scan a full I-V sweep within a period of less than a second, while the temperature difference across a thermoelectric generator takes a much longer time to change due to the large thermal mass and specific heat.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Thermoelectric Generators by I–V Curves

Min

Singh

Garcı́a-Cañadas

et al. 2015

Journal of Elec Materi

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A recent theoretical study proposes a new way to evaluate thermoelectric devices by measuring two I-V curves-one obtained under a constant temperature difference and the other obtained for a constant thermal input. We report an experimental demonstration of the feasibility of this novel technique. A measurement system was designed and constructed, which enables both types of I-V curves to be obtained automatically. The effective ZT values of a thermoelectric module were determined using this system and compared with those measured by an impedance spectroscopy technique. The results confirm the validity of the proposed technique. In addition, the capability of measuring ZT under a large temperature difference was also investigated. The results show that the ZTs obtained for a large temperature difference are significantly smaller than those for a small temperature difference, providing insights into the design and operation of thermoelectric modules in realistic applications.

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Section: Introductionmentioning

confidence: 99%

Evaluation of Thermoelectric Generators by I–V Curves

Min

Singh

Garcı́a-Cañadas

et al. 2015

Journal of Elec Materi

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“…On the other hand, the COP is much larger when operating in the heat pump mode, where the temperature of solar cell is higher than (or equal to) the temperature of heat sink. A more interesting operation is self-powered heat pumping mode, [5] where the thermoelectric device does not require input power. The Peltier cooling takes place when the terminals of thermoelectric device are short-circuited.…”

Section: Hybrid System With Thermoelectric Coolingmentioning

confidence: 99%

Prospective Photovoltaic-Thermoelectric Hybrid System

Min¹

2022

ES Mater. Manuf.

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“…The heat current is also a function of the working conditions because of its convective part as already stressed in Refs. [42,26]. This dependence may be given through the introduction of an extended Fourier law [26]:…”

Section: Appendix: Reaching the Different Regimesmentioning

confidence: 99%

Causality in thermoelectric systems: Insights from block diagrams

Apertet¹

2016

Eur. Phys. J. Plus

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While Carnot's model engines demonstrate ideal performances regarding conversion efficiency, they cannot be actually used as energy converters since they are non causal systems. Such an unphysical behavior indeed restrains the working conditions to a single point where, in the case of a refrigerator (generator), the cooling power (output power) vanishes. Focusing on the example of a thermoelectric refrigerator, we study the impact of different dissipation sources on the causality of such systems. Basing our analysis on the block diagram description of this system, we discuss particularly the fact that heat conduction cannot ensure causality.PACS. 05.70.Ln Nonequilibrium and irreversible thermodynamics -84.60.Rb Thermoelectric, electrogasdynamic and other direct energy conversion -72.20.Pa Thermoelectric and thermomagnetic effects

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Variable thermal resistor based on self-powered Peltier effect

Cited by 23 publications

References 7 publications

Evaluation of Thermoelectric Generators by I–V Curves

Evaluation of Thermoelectric Generators by I–V Curves

Prospective Photovoltaic-Thermoelectric Hybrid System

Causality in thermoelectric systems: Insights from block diagrams

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