Transient distributed parameter electrical analogous model of TE devices

Mitrani, Daniel; Soler, Jordi; Turó, A.; García, M.J.; Chávez, J.A.

doi:10.1016/j.mejo.2008.06.038

Cited by 29 publications

(33 citation statements)

References 6 publications

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“…In this model, there was good agreement with other models 14 and this model is the basis of the work herein. Sullivan et al 39 compared his SPICE model results with a finite volume Fluent model.…”

Section: Methodssupporting

confidence: 82%

“…The model was originally developed by Mitrani et al 14 The height of the thermoelement was 5 mm with a cross sectional area was 1 mm 2 .…”

Section: Methodsmentioning

confidence: 99%

“…Differential equations derived for transient thermoelectric operation are unable to be solved in closed form, 14 therefore other solution methods are used. Snyder et al 15 derived a 1D linear approximation model of a couple that was capable or modeling the supercooling portion of a transient pulse event.…”

Section: Methodsmentioning

confidence: 99%

“…[14][15][16] In contrast to transient conditions, steady state cooling power at T c for n couples is expressed aṡ Q c = n αT c I − 1 2…”

mentioning

confidence: 99%

“…19 Variables that affect pulsed Peltier cooling include: thermoelement length, 15 current pulse amplitude 15,19 pulse duration, 19 pulse shape, 14,16,19,[22][23][24][25][26][27] time between pulses, 28 thermoelectric figure of merit, 15 thermoelement thermal diffusivity 15 , thermoelement shape [29][30][31] and the number of stages of a multi-stage thermoelectric cooler. 32 Of these variables, there are only two that can be varied to change the operating conditions for any given pulse shape.…”

mentioning

confidence: 99%

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Peltier Supercooling with Isosceles Current Pulses: A Response Surface Perspective

Piggott

Allen

2017

ECS J. Solid State Sci. Technol.

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Using a pulsed electrical current enables a temporary state in which a Peltier element achieves temperatures below that obtained with a steady current. This is referred to as supercooling. Supercooling is followed by a period of superheating during which Peltier heat transfer is diminished and the surface temperatures increases. Most studies have found that the duration of superheating is longer than the duration of supercooling. As a result, the current pulse generates a net heating instead of enhanced cooling. There are limited studies that have shown the possibility of net cooling during a current pulse. The objective of this paper is to discuss the operating conditions for which net cooling is possible and maximized. The interaction between pulse duration and pulse height using isosceles shaped current pulses on net cooling was investigated using response surfaces generated using electrical-thermal analogies in SPICE. Pulse duration ranged from 0.1 to 10.0 seconds and pulse height ranging from 1.01 to 6.0 times steady current. Response surfaces were used to map a variety of performance factors; including the transient time to achieve a minimum temperature, the pulse cooling enhancement, transient penalty and transient advantage. The optimal combination of pulse duration and pulse height was identified.

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Section: Methodssupporting

confidence: 82%

“…The model was originally developed by Mitrani et al 14 The height of the thermoelement was 5 mm with a cross sectional area was 1 mm 2 .…”

Section: Methodsmentioning

confidence: 99%