Heat Transfer Characteristics of Latent Thermal Storage Units with Sodium Hydroxide-Based Molten Salts

Katsuhiko Kanari; Yoshiyuki Abe; Kotaro Tanaka; Yoshio Takahashi; Ryuji Sakamoto; Masayuki Kamimoto; Takeo Ozawa

doi:10.1252/kakoronbunshu.17.15

Heat Transfer Characteristics of Latent Thermal Storage Units with Sodium Hydroxide-Based Molten Salts

Katsuhiko Kanari, Yoshiyuki Abe, Kotaro Tanaka, Yoshio Takahashi, Ryuji Sakamoto, Masayuki Kamimoto, Takeo Ozawa

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

The present paper describes experimental and computer simulation results for horizontal U-tube latent thermal storage units with a eutectic of sodium hydroxide-sodium nitrate. Through 1000 melting-freezing (charge-discharge) cycle tests on two 30 kWh scale storage units of bare-tube and finned-tube stypes, the heat transfer characteristics were evaluated. Computer simulations of both types of storage units were performed with a two dimensional model. For the finned-tube type, the effect of fin was included in the effective thermal conductivity of molten salt around the tubes. The calculated results were in good agreement with experimental ones. The heat transfer characteristics were evaluated for various storage units with different parameters such as number of passes, and number of heat transfer pipes.

Original language	English
Pages (from-to)	15-21
Number of pages	7
Journal	KAGAKU KOGAKU RONBUNSHU
Volume	17
Issue number	1
DOIs	https://doi.org/10.1252/kakoronbunshu.17.15
Publication status	Published - 1991
Externally published	Yes

Keywords

Computer Simulation
Energy
Heat Transfer
High Temperature
Latent Heat
Molten Salt
Sodium Hydroxide
Thermal Storage

ASJC Scopus subject areas

Chemistry(all)
Chemical Engineering(all)

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10.1252/kakoronbunshu.17.15

Cite this

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title = "Heat Transfer Characteristics of Latent Thermal Storage Units with Sodium Hydroxide-Based Molten Salts",

abstract = "The present paper describes experimental and computer simulation results for horizontal U-tube latent thermal storage units with a eutectic of sodium hydroxide-sodium nitrate. Through 1000 melting-freezing (charge-discharge) cycle tests on two 30 kWh scale storage units of bare-tube and finned-tube stypes, the heat transfer characteristics were evaluated. Computer simulations of both types of storage units were performed with a two dimensional model. For the finned-tube type, the effect of fin was included in the effective thermal conductivity of molten salt around the tubes. The calculated results were in good agreement with experimental ones. The heat transfer characteristics were evaluated for various storage units with different parameters such as number of passes, and number of heat transfer pipes.",

keywords = "Computer Simulation, Energy, Heat Transfer, High Temperature, Latent Heat, Molten Salt, Sodium Hydroxide, Thermal Storage",

author = "Katsuhiko Kanari and Yoshiyuki Abe and Kotaro Tanaka and Yoshio Takahashi and Ryuji Sakamoto and Masayuki Kamimoto and Takeo Ozawa",

year = "1991",

doi = "10.1252/kakoronbunshu.17.15",

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publisher = "Society of Chemical Engineers, Japan",

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T1 - Heat Transfer Characteristics of Latent Thermal Storage Units with Sodium Hydroxide-Based Molten Salts

AU - Kanari, Katsuhiko

AU - Abe, Yoshiyuki

AU - Tanaka, Kotaro

AU - Takahashi, Yoshio

AU - Sakamoto, Ryuji

AU - Kamimoto, Masayuki

AU - Ozawa, Takeo

PY - 1991

Y1 - 1991

N2 - The present paper describes experimental and computer simulation results for horizontal U-tube latent thermal storage units with a eutectic of sodium hydroxide-sodium nitrate. Through 1000 melting-freezing (charge-discharge) cycle tests on two 30 kWh scale storage units of bare-tube and finned-tube stypes, the heat transfer characteristics were evaluated. Computer simulations of both types of storage units were performed with a two dimensional model. For the finned-tube type, the effect of fin was included in the effective thermal conductivity of molten salt around the tubes. The calculated results were in good agreement with experimental ones. The heat transfer characteristics were evaluated for various storage units with different parameters such as number of passes, and number of heat transfer pipes.

AB - The present paper describes experimental and computer simulation results for horizontal U-tube latent thermal storage units with a eutectic of sodium hydroxide-sodium nitrate. Through 1000 melting-freezing (charge-discharge) cycle tests on two 30 kWh scale storage units of bare-tube and finned-tube stypes, the heat transfer characteristics were evaluated. Computer simulations of both types of storage units were performed with a two dimensional model. For the finned-tube type, the effect of fin was included in the effective thermal conductivity of molten salt around the tubes. The calculated results were in good agreement with experimental ones. The heat transfer characteristics were evaluated for various storage units with different parameters such as number of passes, and number of heat transfer pipes.

KW - Computer Simulation

KW - Energy

KW - Heat Transfer

KW - High Temperature

KW - Latent Heat

KW - Molten Salt

KW - Sodium Hydroxide

KW - Thermal Storage

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Heat Transfer Characteristics of Latent Thermal Storage Units with Sodium Hydroxide-Based Molten Salts

Abstract

Keywords

ASJC Scopus subject areas

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