Abstract
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.
| Original language | English |
|---|---|
| Pages (from-to) | 37-43 |
| Number of pages | 7 |
| Journal | Kagaku Kogaku Ronbunshu |
| Volume | 18 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 1992 |
| Externally published | Yes |
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Keywords
- Corrosion
- Energy
- High temperature
- Latent heat
- Molten salt
- Sodium hydroxide
- Thermal storage
ASJC Scopus subject areas
- Chemical Engineering(all)
- Chemistry(all)
Cite this
Latent thermal storage using sodium hydroxide-based molten salts - Demonstration of 30kWh-scale storage units. / Abe, Yoshiyuki; Takahashi, Yoshio; Tanaka, Kotaro; Kanari, Katsuhiko; Sakamoto, Ryuji; Kamimoto, Masayuki; Ozawa, Takeo.
In: Kagaku Kogaku Ronbunshu, Vol. 18, No. 1, 1992, p. 37-43.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Latent thermal storage using sodium hydroxide-based molten salts - Demonstration of 30kWh-scale storage units
AU - Abe, Yoshiyuki
AU - Takahashi, Yoshio
AU - Tanaka, Kotaro
AU - Kanari, Katsuhiko
AU - Sakamoto, Ryuji
AU - Kamimoto, Masayuki
AU - Ozawa, Takeo
PY - 1992
Y1 - 1992
N2 - 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.
AB - 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.
KW - Corrosion
KW - Energy
KW - High temperature
KW - Latent heat
KW - Molten salt
KW - Sodium hydroxide
KW - Thermal storage
UR - http://www.scopus.com/inward/record.url?scp=84945539853&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84945539853&partnerID=8YFLogxK
U2 - 10.1252/kakoronbunshu.18.37
DO - 10.1252/kakoronbunshu.18.37
M3 - Article
AN - SCOPUS:84945539853
VL - 18
SP - 37
EP - 43
JO - Kagaku Kogaku Ronbunshu
JF - Kagaku Kogaku Ronbunshu
SN - 0386-216X
IS - 1
ER -