Thermal storage medium, process for producing the same and thermal storage system using the same
First Claim
1. A thermal storage medium obtained by dispersing, in an oil-in-water manner, a mixture comprising an oil substance having a thermal storing property by phase change, an aqueous medium and a dispersant, wherein an amount of change in a volume average particle diameter of a dispersion of said oil substance after carrying out a 50 times of repetition of solidification/melting by phase change is within ±
- 50% relative to a volume average particle diameter before carrying out the repetition of solidification/melting.
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Abstract
The present invention is a thermal storage medium obtained by dispersing, in an oil-in-water manner, a mixture comprising an oil substance having a thermal storing property by phase change, an aqueous medium and a dispersant, wherein an amount of change in a volume average particle diameter of a dispersion of said oil substance after carrying out a 50 times of repetition of solidification/melting by phase change is within ±50% relative to a volume average particle diameter before carrying out the repetition of solidification/melting.
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16 Claims
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1. A thermal storage medium obtained by dispersing, in an oil-in-water manner, a mixture comprising an oil substance having a thermal storing property by phase change, an aqueous medium and a dispersant,
wherein an amount of change in a volume average particle diameter of a dispersion of said oil substance after carrying out a 50 times of repetition of solidification/melting by phase change is within ± - 50% relative to a volume average particle diameter before carrying out the repetition of solidification/melting.
- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
Specification