Thermal energy storage device and method for making the same

Patent · Tue Nov 10 04:00:00 EST 1981

OSTI ID:5714003

Campbell, S

A thermal energy storage device and method for making the same are described. The thermal energy storage device is in the form of a sealed tube-like container such as a tube-like cylinder or other geometrical configuration partially filled with a phase change material such as calcium chloride hexahydrate. The cylinder is made of tubular high density polyethylene and more particularly an ultra high molecular weight high density polyethylene having a molecular weight of about 500,000 to 700,000 which is tough, chemically resistant, withstands low and high temperatures, acts as a moisture vapor barrier and can be fused and sealed. The calcium hexahydrate is filled in an open top cylinder, closed at the bottom by dissolving two parts of calcium chloride dihydrate with one part of water to provide calcium chloride hexahydrate in liquid form. The cylinder is filled to about 90% by volume and a cap of the same material is then preheated to about fusion temperature. The open top of the cylinder is then brought up to fusion temperature and the cap is fused to it under pressure.

• Assignee: Pipe Systems Inc
• Patent Number(s): US 4299274
• OSTI ID: 5714003
• Country of Publication: United States
• Language: English

Related Subjects

25 ENERGY STORAGE
250600* -- Energy Storage-- Thermal
ALKALINE EARTH METAL COMPOUNDS
BONDING
CALCIUM CHLORIDES
CALCIUM COMPOUNDS
CALCIUM HALIDES
CHLORIDES
CHLORINE COMPOUNDS
DESIGN
ENERGY STORAGE
EQUIPMENT
FABRICATION
HALIDES
HALOGEN COMPOUNDS
HEAT RESISTANT MATERIALS
HEAT STORAGE
HEAT TREATMENTS
HYDROGEN COMPOUNDS
JOINING
LATENT HEAT STORAGE
MATERIALS
ORGANIC COMPOUNDS
ORGANIC POLYMERS
OXYGEN COMPOUNDS
PHASE CHANGE MATERIALS
POLYETHYLENES
POLYMERS
POLYOLEFINS
STORAGE
THERMAL ENERGY STORAGE EQUIPMENT
TUBES
WATER