High temperature direct contact thermal energy storage using phase change media

Patent · Tue Apr 23 00:00:00 EST 1985

OSTI ID:5336273

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 3000/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 and sulfates and metal, metallic alloys 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, power generating heat engines and the like.

• Assignee: Institute of Gas Technology
• Patent Number(s): US 4512388
• OSTI ID: 5336273
• Resource Relation: Patent File Date: Filed date 20 Jun 1983; Other Information: PAT-APPL-506030
• Country of Publication: United States
• Language: English

Related Subjects

25 ENERGY STORAGE
THERMAL ENERGY STORAGE EQUIPMENT
DESIGN
ALKALINE EARTH METAL COMPOUNDS
CERAMICS
DIRECT CONTACT HEAT EXCHANGERS
FIBERS
HEAT STORAGE
HEAT TRANSFER FLUIDS
PARTICULATES
PHASE CHANGE MATERIALS
THERMAL CONDUCTIVITY
ENERGY STORAGE
EQUIPMENT
FLUIDS
HEAT EXCHANGERS
MATERIALS
PARTICLES
PHYSICAL PROPERTIES
STORAGE
THERMODYNAMIC PROPERTIES
250600* - Energy Storage- Thermal