Low-temperature thermoelectric refrigerating device using curren

Details Low-temperature thermoelectric refrigerating device using curren Low-temperature thermoelectric refrigerating device using curren

1989-10-26

1991-10-15

Bennett, Henry A.

Superconductor technology: apparatus, material, process

High temperature , per se

Having tc greater than or equal to 150 k

62 32, 505888, 505891, H01B 1200, F25B 2100

Patent

active

050574906

ABSTRACT:
A refrigerating device (34 or 46) is formed using a refrigerating unit (10) having a hot end (32) at which heat is transferred to a heat sink (22), a cold end (30) at which heat is transferred from a cooling load (28) to the unit (10), a first junction (14) of a material (16) carrying electrical current in a nonsuperconducting mode to a material (12) carrying electrical current in a superconducting mode nearest the hot end (32), a second junction (18) of a material (12) carrying electrical current in a superconducting mode to a material (20) carrying electrical current in a nonsuperconducting mode nearest the cold end (30), and an electrical current source (24) that forces a flow of electrical current in the direction from the first junction (14) toward the second junction (18). As the electrical current flows, heat is transferred from the cooling load (28) into the cold end (30), and expelled to the heat sink (22) at the hot end (32). Preferably, a number of the refrigerating units (10) are connected electrically in series, to form single stage (34) or multistage (46) refrigerating devices.

REFERENCES:
patent: 4362023 (1982-12-01), Falco
patent: 4493939 (1985-01-01), Blaske et al.
Choi et al, Crystal Physics & . . . , "The n-p Transition in YBa.sub.2 Cu.sub.3 O.sub.6.5+x", 12/4/87.

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