High-temperature direct-contact thermal energy storage using phase-change media

Patent · Tue Dec 20 00:00:00 EST 1983

OSTI ID:6930102

Claar, T D; Petri, R J

A high-temperature direct-contact thermal energy storage element for use in a system for storage and retrieval of thermal energy in the range of about 400/sup 0/ to about 2000/sup 0/ F. The thermal energy is directly stored, without heat exchange tubes in composite latent/sensible heat thermal energy storage media utilizing the heat of fusion and high-temperature stability of alkaline metal and alkaline earth carbonates, chlorides, nitrates, nitrites, fluorides, hydroxides, sulfates, and mixtures thereof maintained within a porous support-structure material which itself is capable of storage as sensible heat. The thermal energy storage according to the invention may be effectively utilized for storage of thermal energy derived from solar, industrial waste, process heat, and high-temperature gas reactor energy sources and retrieved for a wide variety of uses such as combustion air preheating, drying, space heating, heating of process gases, and the like.

• Assignee: Institute of Gas Technology, Chicago, Ill.
• Patent Number(s): US 4421661
• OSTI ID: 6930102
• Resource Relation: Patent File Date: Filed date 19 Jun 1981; Other Information: PAT-APPL-275380
• Country of Publication: United States
• Language: English

Related Subjects

25 ENERGY STORAGE
DIRECT CONTACT HEAT EXCHANGERS
DESIGN
PHASE CHANGE MATERIALS
THERMAL ENERGY STORAGE EQUIPMENT
ALKALINE EARTH METAL COMPOUNDS
CARBONATES
CHLORIDES
FLUORIDES
HEAT SOURCES
HYDROXIDES
LATENT HEAT STORAGE
MIXTURES
NITRATES
NITRITES
OPERATION
POROUS MATERIALS
SENSIBLE HEAT STORAGE
SULFATES
USES
CARBON COMPOUNDS
CHLORINE COMPOUNDS
DISPERSIONS
ENERGY STORAGE
EQUIPMENT
FLUORINE COMPOUNDS
HALIDES
HALOGEN COMPOUNDS
HEAT EXCHANGERS
HEAT STORAGE
HYDROGEN COMPOUNDS
MATERIALS
NITROGEN COMPOUNDS
OXYGEN COMPOUNDS
STORAGE
SULFUR COMPOUNDS
250600* - Energy Storage- Thermal