Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
LOW TEMPERATURE COOLING SYSTEM
Document Type and Number:
WIPO Patent Application WO/2017/195657
Kind Code:
A1
Abstract:
[Problem] To provide a low temperature cooling system having an excellent energy efficiency using a mechanical refrigerator. [Solution] A low temperature cooling system 100 is characterized by having: a mechanical refrigerator 10 having a low-temperature end 14 refrigerated to a temperature equal to or lower than that of liquid hydrogen and a high-temperature end 20 heated to a temperature higher than that of the low-temperature end 14; a cryostat 11 thermally connected to the low-temperature end 14, the cryostat 11 housing therein a low-temperature operation device which operates at a temperature equal to or lower than that of liquid hydrogen; a liquid hydrogen storage container 22 that is thermally connected to the high-temperature end 20 and that stores liquid hydrogen therein, the liquid hydrogen storage container 22 being capable of cooling the high-temperature end using the latent heat from the vaporization of the liquid hydrogen when the liquid hydrogen undergoes a phase change to hydrogen gas; and a hydrogen power generation unit (fuel cell 25) capable of being driven with the hydrogen gas supplied from the liquid hydrogen storage container 22 through piping 24 serving as a power source, and capable of supplying generated electrical power to the mechanical refrigerator 10.

Inventors:
HIDAKA Mutsuo (Tsukuba Central 2 1-1, Umezono 1-chome, Tsukuba-sh, Ibaraki 68, 〒3058568, JP)
NAKAYAMA Tomonori (1-1-1 Tennodai, Tsukuba-sh, Ibaraki 77, 〒3058577, JP)
Application Number:
JP2017/016924
Publication Date:
November 16, 2017
Filing Date:
April 28, 2017
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY (3-1 Kasumigaseki 1-chome, Chiyoda-ku Tokyo, 21, 〒1008921, JP)
International Classes:
F25D16/00; F25B9/00; F25D3/10; H01M8/04; H01M8/10
Domestic Patent References:
WO2016047109A12016-03-31
Foreign References:
US9261295B12016-02-16
JP2001167781A2001-06-22
JPS5216014A1977-02-07
JP2010121860A2010-06-03
JP2006116042A2006-05-11
JP2005273681A2005-10-06
JPH07288206A1995-10-31
JPH01204482A1989-08-17
Attorney, Agent or Firm:
SHIODA Shin (Hometown patent office, Wako Building 201 10-14, Takezono 2-chome, Tsukuba-sh, Ibaraki 32, 〒3050032, JP)
Download PDF: