Phase change thermal storage materials with crust forming stabilizers

Patent · Tue Feb 05 00:00:00 EST 1980

OSTI ID:5745570

Telkes, M

A body for the storage of heat or for the storage of coolness is, in its solid phase, a conglomerate of a mass of crystalline particles of a salt-hydrate, and a rigid cellular support structure in the form of a crust formed by a chemical reaction with the surfaces of the crystalline particles. By way of example , strontium nitrate is reacted with uniformly sized crystalline particles of sodium sulfate decahydrate to form an integral support crust structure of the compound strontium sulfate, which compound is insoluble in water. When the crystalline particles are transformed to the liquid phase, the liquid is confined within the cells of the support structure. The body is enclosed in a moisture impermeable skin to prevent evaporation of the water of crystallization in the liquid phase. Several methods of fabricating such a body are disclosed, including the mixing of the crystalline particles with a solution of soluble strontium nitrate in sufficient quantity to provide the desired supporting crust structure, pouring that mixture into a suitable mold, and providing the desired moisture impervious skin for the cast.

• Assignee: American Technological University
• Patent Number(s): US 4187189
• OSTI ID: 5745570
• Resource Relation: Patent File Date: Filed date 2 May 1978; Other Information: PAT-APPL-902239
• Country of Publication: United States
• Language: English

Related Subjects

25 ENERGY STORAGE
14 SOLAR ENERGY
LATENT HEAT STORAGE
PHASE CHANGE MATERIALS
FUSION HEAT
THERMAL ENERGY STORAGE EQUIPMENT
DESIGN
CHEMICAL PREPARATION
HEAT EXCHANGERS
HYDRATES
RADIANT HEAT TRANSFER
SODIUM SULFATES
SOLAR ENERGY
STRONTIUM NITRATES
STRONTIUM SULFATES
SUPPORTS
ALKALI METAL COMPOUNDS
ALKALINE EARTH METAL COMPOUNDS
ENERGY
ENERGY SOURCES
ENERGY STORAGE
ENERGY TRANSFER
ENTHALPY
EQUIPMENT
HEAT STORAGE
HEAT TRANSFER
MATERIALS
MECHANICAL STRUCTURES
NITRATES
NITROGEN COMPOUNDS
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
RENEWABLE ENERGY SOURCES
SODIUM COMPOUNDS
STORAGE
STRONTIUM COMPOUNDS
SULFATES
SULFUR COMPOUNDS
SYNTHESIS
THERMODYNAMIC PROPERTIES
TRANSITION HEAT
250600* - Energy Storage- Thermal
142000 - Solar Energy- Heat Storage- (1980-)