Latent Thermal Storage Using Sodium Hydroxide-Based Molten Salts: —Demonstration of 30kWh-scale storage units—

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

研究成果: Article査読

抄録

The present paper describes experimental results of the operation of 30kWh-scale molten salt latent thermal storage units using a eutectic of sodium hydroxide and sodium nitrate which is suitable for thermal storage around 250°C. The main problems of molten salt as a latent thermal storage material are its large volume change on phase change and its feasibility for use with structural materials. Using mild steel, two different U-tube storage units were built for testing heat transfer performance, structural feasibility and compatibility with the molten salt. From thorough and comprehensive material analyses after 1,000 melting-freezing (charge-discharge) cycle tests, it was concluded that the present storage unit structure (horizontal U-tube and multiple-path type) and material selection were fairly feasible for a latent thermal storage unit with this particular molten salt.

本文言語English
ページ(範囲)37-43
ページ数7
ジャーナルKAGAKU KOGAKU RONBUNSHU
18
1
DOI
出版ステータスPublished - 1992
外部発表はい

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)

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