Electrical Appliance Industry, Transportation Industry

This report was compiled based on an article introduced in our periodical, “Yano E plus” of September 2019 issue.

Superconductivity has been easily accessible for us, as represented by MRI; High Demand in terms of resource conservation and low cost so as to achieve required ultralow temperature.

I. Ultralow Temperature and Cryogenic Refrigerator

II. Methods to Acquire Ultralow Temperature

   1. Dilution Refrigeration Method

   2. Adiabatic Demagnetization Method

              (1) Adiabatic Demagnetization Method Using Paramagnetic Salt

              (2) Adiabatic Demagnetization Method Using Nuclear Spin

III. Types of Cryogenic Refrigerator

1. GM Refrigerator
2. Magnetic Refrigerator
3. Dilution Refrigerator
4. Pulse Tube Refrigerator
5. Stirling Refrigerator

IV. Application Fields of Cryogenic Refrigerator

1. Energy
2. Transportation
3. Life Science
4. Life Electronics
5. Others

V. Transition and Forecast of Market Size of Cryogenic Refrigerator

   [Figure/Table 1: Transition and Forecast of Domestic and Worldwide Market Size of Cryogenic Refrigerator (2018-2022)]

   [Figure/Table 2: Transition and Forecast of Market Size of Cryogenic Refrigerator by Field in Demand (2018-2022)]

VI. Manufacturers’ Share

   [Figure/Table 3: Companies’ Share in Worldwide Cryogenic Refrigerator Market (2018)]

VII. Trends in Approaches of Companies and Research Institutes Related to Cryogenic Refrigerator

　1. ULVAC CRYOGENICS INCORPORATED

　2. Kochi University

[Figure 1: 1K Refrigerator Remodeled from Commercially Available Refrigerator]

[Figure 2: Schematic Diagram Showing Method Reducing Temperature Fluctuations to Less Than 1/100 in Ultralow Temperature]

　3. Sumitomo Heavy Industries, Ltd.

[Figure 3: Configuration of Major 4KGM Refrigerator

[Figure 4: 4KGM Refrigerator Line of Sumitomo Heavy Industries]

　4. Institute of Slush Hydrogen

[Figure 5: Schematic Diagram Showing the Difference between Magnetic Refrigeration Liquefaction Method and Gas Compression Liquefaction Method]

[Figure 6: Schematic Diagram Showing the Difference between Magnetic Refrigeration Liquefaction Method and Gas Compression Liquefaction Method (Temperature/Entropy Diagram)]

[Figure 7: High-efficiency Hydrogen Energy System Utilizing Slush Hydrogen]

   5. Tokyo Institute of Technology

1. Air Conditioning of Room Temperature by Magnetic Rrefrigeration
2. Application of Ultralow Temperature in Thermoelectric Element
3. Development of Superconducting Coil Cooling System

　6. Tohoku University

[Figure 8: Compact Adiabatic Demagnetization Refrigerator (ADR) Invented This Time]

[Figure 9: Cooling Process Using ADR]

　7. Rockgate Corporation

[Figure 10: XLD Series Cryogen-free Dilution Refrigerator, Manufactured by Bluefors]

XIII.　Future Prospects of Cryogenic Refrigerator