Thermal energy storage composition comprising peat moss
AssigneeSaskatchewan Minerals
InventorPhilip G. Rueffel
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Abstract
Peat moss is used in a thermal energy storage composition to provide a network in which to trap an incongruently melting salt hydrate capable of storing thermal energy as latent heat of phase change. The peat moss network is effective in preventing the segregation of a dehydrated form of the salt between heating and cooling cycles. In a preferred embodiment that salt hydrate is the decahydrate of sodium sulphate. A nucleating agent such as sodium tetraborate decahydrate is included to prevent supercooling in the composition, and promote crystallization of the decahydrate of sodium sulphate.
Claims16
A thermal energy storage composition which utilizes latent heat of phase change to store thermal energy comprising:
- an incongruently melting salt hydrate, capable of storing thermal energy as latent heat of phase change, and a nucleating agent, both being trapped in a network of peat moss.
Dependencies are inferred from the claim text.