Compact cooling devices based on giant electrocaloric effect dielectrics

Haiming Gu; Xinyu Li; S. G. Lu; Minren Lin; Xiaoshi Qian; J. P. Cheng; Q. M. Zhang; Ailan Cheng; Brent Craven

doi:10.1115/HT2012-58128

Compact cooling devices based on giant electrocaloric effect dielectrics

Haiming Gu, Xinyu Li, S. G. Lu, Minren Lin, Xiaoshi Qian, J. P. Cheng, Q. M. Zhang, Ailan Cheng, Brent Craven

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

1 Scopus citations

Abstract

The electrocaloric effect (ECE) refers to the change in temperature and/or entropy of a dielectric material due to the electric field induced change of dipolar states. Giant ECE is discovered in P(VDF-TrFE) ferroelectric copolymers near ferroelectric-paraelectric(F-P) transition temperature which is normally much higher than room temperature. This paper presents the two defect-inducing methods to lower and broaden working temperature range of P(VDF-TrFE) based copolymers for ECE, and thus make it preferable for practical cooling device. Giant ECE is experimentally demonstrated in large temperature range (0-55°C). In addition, an electrocaloric oscillatory refrigerator (ECOR) was proposed and simulated by finite volume method and its high performance was theoretically demonstrated. Temperature gradient larger than 30 °C can be maintained across the two sides of a 1 cm device. For ΔT=20 °C cooling condition, a high cooling power (5.4 W/cm²) and significantly higher coefficient of performance (COP) can be achieved (50% of Carnot efficiency).

Original language	English (US)
Title of host publication	ASME 2012 Heat Transfer Summer Conf. Collocated with the ASME 2012 Fluids Engineering Div. Summer Meeting and the ASME 2012 10th Int. Conf. on Nanochannels, Microchannels and Minichannels, HT 2012
Pages	635-639
Number of pages	5
DOIs	https://doi.org/10.1115/HT2012-58128
State	Published - 2012
Event	ASME 2012 Heat Transfer Summer Conference Collocated with the ASME 2012 Fluids Engineering Div. Summer Meeting and the ASME 2012 10th Int. Conf. on Nanochannels, Microchannels and Minichannels, HT 2012 - Rio Grande, Puerto Rico Duration: Jul 8 2012 → Jul 12 2012

Publication series

Name	ASME 2012 Heat Transfer Summer Conf. Collocated with the ASME 2012 Fluids Engineering Div. Summer Meeting and the ASME 2012 10th Int. Conf. on Nanochannels, Microchannels and Minichannels, HT 2012
Volume	2

Other

Other	ASME 2012 Heat Transfer Summer Conference Collocated with the ASME 2012 Fluids Engineering Div. Summer Meeting and the ASME 2012 10th Int. Conf. on Nanochannels, Microchannels and Minichannels, HT 2012
Country/Territory	Puerto Rico
City	Rio Grande
Period	7/8/12 → 7/12/12

All Science Journal Classification (ASJC) codes

Fluid Flow and Transfer Processes
Control and Systems Engineering
Electrical and Electronic Engineering
Mechanical Engineering
Condensed Matter Physics

Access to Document

10.1115/HT2012-58128

Cite this

Gu, H., Li, X., Lu, S. G., Lin, M., Qian, X., Cheng, J. P., Zhang, Q. M., Cheng, A., & Craven, B. (2012). Compact cooling devices based on giant electrocaloric effect dielectrics. In ASME 2012 Heat Transfer Summer Conf. Collocated with the ASME 2012 Fluids Engineering Div. Summer Meeting and the ASME 2012 10th Int. Conf. on Nanochannels, Microchannels and Minichannels, HT 2012 (pp. 635-639). (ASME 2012 Heat Transfer Summer Conf. Collocated with the ASME 2012 Fluids Engineering Div. Summer Meeting and the ASME 2012 10th Int. Conf. on Nanochannels, Microchannels and Minichannels, HT 2012; Vol. 2). https://doi.org/10.1115/HT2012-58128

Gu, Haiming ; Li, Xinyu ; Lu, S. G. et al. / Compact cooling devices based on giant electrocaloric effect dielectrics. ASME 2012 Heat Transfer Summer Conf. Collocated with the ASME 2012 Fluids Engineering Div. Summer Meeting and the ASME 2012 10th Int. Conf. on Nanochannels, Microchannels and Minichannels, HT 2012. 2012. pp. 635-639 (ASME 2012 Heat Transfer Summer Conf. Collocated with the ASME 2012 Fluids Engineering Div. Summer Meeting and the ASME 2012 10th Int. Conf. on Nanochannels, Microchannels and Minichannels, HT 2012).

@inproceedings{2548f853aa014e5f80d0498d92a8cac4,

title = "Compact cooling devices based on giant electrocaloric effect dielectrics",

abstract = "The electrocaloric effect (ECE) refers to the change in temperature and/or entropy of a dielectric material due to the electric field induced change of dipolar states. Giant ECE is discovered in P(VDF-TrFE) ferroelectric copolymers near ferroelectric-paraelectric(F-P) transition temperature which is normally much higher than room temperature. This paper presents the two defect-inducing methods to lower and broaden working temperature range of P(VDF-TrFE) based copolymers for ECE, and thus make it preferable for practical cooling device. Giant ECE is experimentally demonstrated in large temperature range (0-55°C). In addition, an electrocaloric oscillatory refrigerator (ECOR) was proposed and simulated by finite volume method and its high performance was theoretically demonstrated. Temperature gradient larger than 30 °C can be maintained across the two sides of a 1 cm device. For ΔT=20 °C cooling condition, a high cooling power (5.4 W/cm2) and significantly higher coefficient of performance (COP) can be achieved (50% of Carnot efficiency).",

author = "Haiming Gu and Xinyu Li and Lu, {S. G.} and Minren Lin and Xiaoshi Qian and Cheng, {J. P.} and Zhang, {Q. M.} and Ailan Cheng and Brent Craven",

year = "2012",

doi = "10.1115/HT2012-58128",

language = "English (US)",

isbn = "9780791844786",

series = "ASME 2012 Heat Transfer Summer Conf. Collocated with the ASME 2012 Fluids Engineering Div. Summer Meeting and the ASME 2012 10th Int. Conf. on Nanochannels, Microchannels and Minichannels, HT 2012",

pages = "635--639",

booktitle = "ASME 2012 Heat Transfer Summer Conf. Collocated with the ASME 2012 Fluids Engineering Div. Summer Meeting and the ASME 2012 10th Int. Conf. on Nanochannels, Microchannels and Minichannels, HT 2012",

note = "ASME 2012 Heat Transfer Summer Conference Collocated with the ASME 2012 Fluids Engineering Div. Summer Meeting and the ASME 2012 10th Int. Conf. on Nanochannels, Microchannels and Minichannels, HT 2012 ; Conference date: 08-07-2012 Through 12-07-2012",

}

Gu, H, Li, X, Lu, SG, Lin, M, Qian, X, Cheng, JP, Zhang, QM, Cheng, A & Craven, B 2012, Compact cooling devices based on giant electrocaloric effect dielectrics. in ASME 2012 Heat Transfer Summer Conf. Collocated with the ASME 2012 Fluids Engineering Div. Summer Meeting and the ASME 2012 10th Int. Conf. on Nanochannels, Microchannels and Minichannels, HT 2012. ASME 2012 Heat Transfer Summer Conf. Collocated with the ASME 2012 Fluids Engineering Div. Summer Meeting and the ASME 2012 10th Int. Conf. on Nanochannels, Microchannels and Minichannels, HT 2012, vol. 2, pp. 635-639, ASME 2012 Heat Transfer Summer Conference Collocated with the ASME 2012 Fluids Engineering Div. Summer Meeting and the ASME 2012 10th Int. Conf. on Nanochannels, Microchannels and Minichannels, HT 2012, Rio Grande, Puerto Rico, 7/8/12. https://doi.org/10.1115/HT2012-58128

Compact cooling devices based on giant electrocaloric effect dielectrics. / Gu, Haiming; Li, Xinyu; Lu, S. G. et al.
ASME 2012 Heat Transfer Summer Conf. Collocated with the ASME 2012 Fluids Engineering Div. Summer Meeting and the ASME 2012 10th Int. Conf. on Nanochannels, Microchannels and Minichannels, HT 2012. 2012. p. 635-639 (ASME 2012 Heat Transfer Summer Conf. Collocated with the ASME 2012 Fluids Engineering Div. Summer Meeting and the ASME 2012 10th Int. Conf. on Nanochannels, Microchannels and Minichannels, HT 2012; Vol. 2).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

TY - GEN

T1 - Compact cooling devices based on giant electrocaloric effect dielectrics

AU - Gu, Haiming

AU - Li, Xinyu

AU - Lu, S. G.

AU - Lin, Minren

AU - Qian, Xiaoshi

AU - Cheng, J. P.

AU - Zhang, Q. M.

AU - Cheng, Ailan

AU - Craven, Brent

PY - 2012

Y1 - 2012

N2 - The electrocaloric effect (ECE) refers to the change in temperature and/or entropy of a dielectric material due to the electric field induced change of dipolar states. Giant ECE is discovered in P(VDF-TrFE) ferroelectric copolymers near ferroelectric-paraelectric(F-P) transition temperature which is normally much higher than room temperature. This paper presents the two defect-inducing methods to lower and broaden working temperature range of P(VDF-TrFE) based copolymers for ECE, and thus make it preferable for practical cooling device. Giant ECE is experimentally demonstrated in large temperature range (0-55°C). In addition, an electrocaloric oscillatory refrigerator (ECOR) was proposed and simulated by finite volume method and its high performance was theoretically demonstrated. Temperature gradient larger than 30 °C can be maintained across the two sides of a 1 cm device. For ΔT=20 °C cooling condition, a high cooling power (5.4 W/cm2) and significantly higher coefficient of performance (COP) can be achieved (50% of Carnot efficiency).

AB - The electrocaloric effect (ECE) refers to the change in temperature and/or entropy of a dielectric material due to the electric field induced change of dipolar states. Giant ECE is discovered in P(VDF-TrFE) ferroelectric copolymers near ferroelectric-paraelectric(F-P) transition temperature which is normally much higher than room temperature. This paper presents the two defect-inducing methods to lower and broaden working temperature range of P(VDF-TrFE) based copolymers for ECE, and thus make it preferable for practical cooling device. Giant ECE is experimentally demonstrated in large temperature range (0-55°C). In addition, an electrocaloric oscillatory refrigerator (ECOR) was proposed and simulated by finite volume method and its high performance was theoretically demonstrated. Temperature gradient larger than 30 °C can be maintained across the two sides of a 1 cm device. For ΔT=20 °C cooling condition, a high cooling power (5.4 W/cm2) and significantly higher coefficient of performance (COP) can be achieved (50% of Carnot efficiency).

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M3 - Conference contribution

AN - SCOPUS:84892645281

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T3 - ASME 2012 Heat Transfer Summer Conf. Collocated with the ASME 2012 Fluids Engineering Div. Summer Meeting and the ASME 2012 10th Int. Conf. on Nanochannels, Microchannels and Minichannels, HT 2012

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BT - ASME 2012 Heat Transfer Summer Conf. Collocated with the ASME 2012 Fluids Engineering Div. Summer Meeting and the ASME 2012 10th Int. Conf. on Nanochannels, Microchannels and Minichannels, HT 2012

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Y2 - 8 July 2012 through 12 July 2012

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Gu H, Li X, Lu SG, Lin M, Qian X, Cheng JP et al. Compact cooling devices based on giant electrocaloric effect dielectrics. In ASME 2012 Heat Transfer Summer Conf. Collocated with the ASME 2012 Fluids Engineering Div. Summer Meeting and the ASME 2012 10th Int. Conf. on Nanochannels, Microchannels and Minichannels, HT 2012. 2012. p. 635-639. (ASME 2012 Heat Transfer Summer Conf. Collocated with the ASME 2012 Fluids Engineering Div. Summer Meeting and the ASME 2012 10th Int. Conf. on Nanochannels, Microchannels and Minichannels, HT 2012). doi: 10.1115/HT2012-58128

Compact cooling devices based on giant electrocaloric effect dielectrics

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