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

研究成果: Article査読

3 被引用数 (Scopus)

抄録

The present paper describes experimental and computer simulation results for 30 kWh scale horizontal U-tube type latent thermal-energy storage units using a eutectic of sodium hydroxide-sodium nitrate as a phase change material. Through 1000 melting/freezing (charge/discharge) cycle tests on two storage units of bare-tube and finned-tube types, the heat-transfer characteristics were evaluated. Computer simulations on both the storage units were performed with a two-dimensional model. In the case of the finned-tube type, the effect of fins was included in the effective thermal conductivity of molten salt around the tubes. The calculated results were in good agreement with the observed ones. The model was also applied to practical-scale storage units, and the influence of the parameters, such as the ratio of the diameter to the length of the storage vessel, the number of heat-transfer pipes and channel partitions, etc., on the heat-transfer performance was evaluated.

本文言語English
ページ(範囲)686-699
ページ数14
ジャーナルHeat Transfer - Japanese Research
20
7
出版ステータスPublished - 1991
外部発表はい

ASJC Scopus subject areas

  • Fluid Flow and Transfer Processes

フィンガープリント 「Heat-transfer characteristics of latent thermal-storage units with sodium hydroxide-based molten salts」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル