To accommodate societal electrification and decarbonization, renewable energy resources continue to expand their share of the global energy market. The intermittency of renewable energy technologies as well as the high power density of modern electrified platforms necessitates the need for both efficient thermal management and high-density thermal storage. Phase change materials are a promising passive thermal energy storage solution. However, difficulties with efficient system implementation stemming from the inherent melt pool formation hinder their potential. We develop an innovative strategy, termed dynamic phase change material “dynPCM,” to address this thermal transport issue by ensuring a constant, thin, melt layer. We analyze the fundamental limits of dynPCMs, characterize the peak achievable heat flux and energy/power densities, estimate the power consumption of dynPCM systems, and investigate the fundamental physics which govern dynPCM behavior. We show that dynPCM can eliminate the classical trade-off seen between energy density and power density and achieve ultrahigh heat fluxes, ∼105 W/cm2, with heat flux-to-required power ratios as high as ∼107. We also demonstrate achievable power densities as high as ∼100 W/cm3 at energy densities as high as ∼10 kJ/cm3. Throughout this work, we develop a methodology to evaluate the operating limits, enabling adaptation of the dynPCM system concept to a variety of applications and industries.
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18 March 2024
Research Article|
March 20 2024
Fundamental limits of dynamic phase change materials Available to Purchase
Vivek S. Garimella
;
Vivek S. Garimella
(Conceptualization, Data curation, Formal analysis, Investigation, Methodology, Validation, Writing – original draft, Writing – review & editing)
1
Mechanical Science and Engineering, University of Illinois at Urbana-Champaign
, Urbana, Illinois 61801, USA
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Wuchen Fu
;
Wuchen Fu
(Conceptualization, Data curation, Formal analysis, Investigation, Methodology, Validation, Writing – original draft, Writing – review & editing)
1
Mechanical Science and Engineering, University of Illinois at Urbana-Champaign
, Urbana, Illinois 61801, USA
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Robert A. Stavins
;
Robert A. Stavins
(Conceptualization, Formal analysis, Investigation, Writing – original draft, Writing – review & editing)
1
Mechanical Science and Engineering, University of Illinois at Urbana-Champaign
, Urbana, Illinois 61801, USA
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Soonwook Kim
;
Soonwook Kim
(Conceptualization, Formal analysis, Investigation, Writing – original draft, Writing – review & editing)
1
Mechanical Science and Engineering, University of Illinois at Urbana-Champaign
, Urbana, Illinois 61801, USA
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Tomer Shockner
;
Tomer Shockner
(Conceptualization, Investigation, Writing – original draft, Writing – review & editing)
2
Department of Mechanical Engineering, Ben-Gurion University of the Negev
, Beer-Sheva 84105, Israel
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Elad Koronio
;
Elad Koronio
(Conceptualization, Methodology, Writing – original draft, Writing – review & editing)
2
Department of Mechanical Engineering, Ben-Gurion University of the Negev
, Beer-Sheva 84105, Israel
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Gennady Ziskind
;
Gennady Ziskind
(Conceptualization, Formal analysis, Funding acquisition, Project administration, Supervision, Writing – original draft, Writing – review & editing)
2
Department of Mechanical Engineering, Ben-Gurion University of the Negev
, Beer-Sheva 84105, Israel
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William P. King
;
William P. King
a)
(Conceptualization, Formal analysis, Funding acquisition, Investigation, Methodology, Project administration, Resources, Supervision, Validation, Writing – original draft, Writing – review & editing)
1
Mechanical Science and Engineering, University of Illinois at Urbana-Champaign
, Urbana, Illinois 61801, USA
3
Materials Research Laboratory, University of Illinois at Urbana-Champaign
, Urbana, Illinois 61801, USA
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Nenad Miljkovic
Nenad Miljkovic
a)
(Conceptualization, Formal analysis, Funding acquisition, Investigation, Methodology, Project administration, Resources, Supervision, Validation, Writing – original draft, Writing – review & editing)
1
Mechanical Science and Engineering, University of Illinois at Urbana-Champaign
, Urbana, Illinois 61801, USA
3
Materials Research Laboratory, University of Illinois at Urbana-Champaign
, Urbana, Illinois 61801, USA
4
Electrical and Computer Engineering, University of Illinois at Urbana-Champaign
, Urbana, Illinois 61801, USA
5
Institute for Sustainability, Energy and Environment (iSEE), University of Illinois
, Urbana, Illinois 61801, USA
6
International Institute for Carbon Neutral Energy Research (WPI-I2CNER), Kyushu University
, Fukuoka, Japan
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Vivek S. Garimella
1
Wuchen Fu
1
Robert A. Stavins
1
Soonwook Kim
1
Tomer Shockner
2
Elad Koronio
2
Gennady Ziskind
2
William P. King
1,3,a)
Nenad Miljkovic
1,3,4,5,6,a)
1
Mechanical Science and Engineering, University of Illinois at Urbana-Champaign
, Urbana, Illinois 61801, USA
2
Department of Mechanical Engineering, Ben-Gurion University of the Negev
, Beer-Sheva 84105, Israel
3
Materials Research Laboratory, University of Illinois at Urbana-Champaign
, Urbana, Illinois 61801, USA
4
Electrical and Computer Engineering, University of Illinois at Urbana-Champaign
, Urbana, Illinois 61801, USA
5
Institute for Sustainability, Energy and Environment (iSEE), University of Illinois
, Urbana, Illinois 61801, USA
6
International Institute for Carbon Neutral Energy Research (WPI-I2CNER), Kyushu University
, Fukuoka, Japan
Appl. Phys. Lett. 124, 123904 (2024)
Article history
Received:
December 05 2023
Accepted:
March 11 2024
Citation
Vivek S. Garimella, Wuchen Fu, Robert A. Stavins, Soonwook Kim, Tomer Shockner, Elad Koronio, Gennady Ziskind, William P. King, Nenad Miljkovic; Fundamental limits of dynamic phase change materials. Appl. Phys. Lett. 18 March 2024; 124 (12): 123904. https://doi.org/10.1063/5.0190273
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