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Thermodynamics of phase-change energy storage: The effects of liquid superheating during melting, and irreversibility during solidification

Publication ,  Journal Article
De Lucia, M; Bejan, A
Published in: Journal of Solar Energy Engineering, Transactions of the ASME
January 1, 1991

This paper considers the question of whether the optimum phase-change temperature for maximum exergy storage is universally equal to the geometric mean of the heat source and environment temperature, Tm= (T∞, Te)1/2. The study consists of three parts. The first deals with the conduction-melting process, and shows that the optimum melting temperature is generally greater than the geometric mean of the source and environment temperatures. The second part covers the conduction-solidification process, and concludes that the irreversibility of solidification decreases monotonically as the phase-change temperature increases. The third part treats the complete cycle of melting (storage) followed by solidification (retrieval), and demonstrates that the optimum phase-change temperature is greater than the optimum temperature of the melting process alone. © 1991 by ASME.

Duke Scholars

Published In

Journal of Solar Energy Engineering, Transactions of the ASME

DOI

EISSN

1528-8986

ISSN

0199-6231

Publication Date

January 1, 1991

Volume

113

Issue

1

Start / End Page

2 / 10

Related Subject Headings

  • Energy
  • 4008 Electrical engineering
  • 0915 Interdisciplinary Engineering
  • 0913 Mechanical Engineering
 

Citation

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Chicago
ICMJE
MLA
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De Lucia, M., & Bejan, A. (1991). Thermodynamics of phase-change energy storage: The effects of liquid superheating during melting, and irreversibility during solidification. Journal of Solar Energy Engineering, Transactions of the ASME, 113(1), 2–10. https://doi.org/10.1115/1.2929947
De Lucia, M., and A. Bejan. “Thermodynamics of phase-change energy storage: The effects of liquid superheating during melting, and irreversibility during solidification.” Journal of Solar Energy Engineering, Transactions of the ASME 113, no. 1 (January 1, 1991): 2–10. https://doi.org/10.1115/1.2929947.
De Lucia M, Bejan A. Thermodynamics of phase-change energy storage: The effects of liquid superheating during melting, and irreversibility during solidification. Journal of Solar Energy Engineering, Transactions of the ASME. 1991 Jan 1;113(1):2–10.
De Lucia, M., and A. Bejan. “Thermodynamics of phase-change energy storage: The effects of liquid superheating during melting, and irreversibility during solidification.” Journal of Solar Energy Engineering, Transactions of the ASME, vol. 113, no. 1, Jan. 1991, pp. 2–10. Scopus, doi:10.1115/1.2929947.
De Lucia M, Bejan A. Thermodynamics of phase-change energy storage: The effects of liquid superheating during melting, and irreversibility during solidification. Journal of Solar Energy Engineering, Transactions of the ASME. 1991 Jan 1;113(1):2–10.

Published In

Journal of Solar Energy Engineering, Transactions of the ASME

DOI

EISSN

1528-8986

ISSN

0199-6231

Publication Date

January 1, 1991

Volume

113

Issue

1

Start / End Page

2 / 10

Related Subject Headings

  • Energy
  • 4008 Electrical engineering
  • 0915 Interdisciplinary Engineering
  • 0913 Mechanical Engineering