Accession Number : ADD014016

Title :   LIH Thermal Storage Capsule/Heat Exchanger.

Descriptive Note : Patent, Filed 24 Apr 87, patented 7 Mar 89,

Corporate Author : DEPARTMENT OF THE AIR FORCE WASHINGTON DC

Personal Author(s) : Kennel, Elliot B ; Mahefkey, Edward T ; Beam, Jerry E

Report Date : 07 Mar 1989

Pagination or Media Count : 6

Abstract : A thermal storage apparatus for use with space-based burst power supplies. Lithium hydride is encapsulated within spherical hollow capsules. Each capsule is made of a three layer hollow shell. The inner layer of each shell is molybdemum, the middle layer silicon carbide, and the outer layer molybdemum. The lithium hydride occupies only about sixty percent of the interior volume of each capsule at ambient temperatures to allow for thermal expansion. The outer diameter of each capsule is 3 cm. The thickness of the layers is 0.1 mm for the inner and outer layer, and 0.3-0.5 mm for the middle layer. The capsules are arranged in a packed array for use in heat storage. A heat transfer working fluid, such as lithium, sodium or potassium, transfers heat to and from the packed array. Keywords: Heat sinks; Thermal storage; Patents. (kt)

Descriptors :   *LITHIUM HYDRIDE, *PATENTS, *HEAT EXCHANGERS, ARRAYS, ENERGY STORAGE, EXTERNAL, FLUIDS, HEAT, HEAT SINKS, HEAT TRANSFER, INTERNAL, LAYERS, LITHIUM, POTASSIUM, SHELLS(STRUCTURAL FORMS), SILICON CARBIDES, SODIUM, THERMAL EXPANSION, THERMAL PROPERTIES, THICKNESS, VOLUME, POWER SUPPLIES

Subject Categories : Air Condition, Heating, Lighting & Ventilating

Distribution Statement : APPROVED FOR PUBLIC RELEASE