Development of 1.5W 4K G-M Cryocooler with Magnetic Regenerator Material

Satoh, Toshimi; Onishi, Atsushi; Li, Rui; Asami, Hiroshi; Kanazawa, Yoshiaki

doi:10.1007/978-1-4613-0373-2_205

Cited by 22 publications

(6 citation statements)

References 1 publication

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“…Cryocoolers as described for instance by Satoh et al (1996) are used to cool down small cryogenic systems. In the CryoCoolers subpackage, simple models representing several types of cryocoolers are included.…”

Section: Cryocoolersmentioning

confidence: 99%

The CryoLib - Modelling Superconductors with Modelica

Pollok¹,

Zimmer²

2019

Linköping Electronic Conference Proceedings

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A Modelica library for the thermal and electrical modelling of cryogenic and superconducting systems is presented. The library design is compatible with the electrical and fluid components from the Modelica Standard library. At the same time, several typical effects of cryogenic systems are modelled that have no equivalent in the Standard library. Easy usability and extendability of the components is emphasized. In this paper, the different parts of the library are explained in more detail. To illustrate the capabilities of the library, three showcases are presented: a simple solenoid magnet system, a current lead and a current limiter. The results show that many effects occuring in cryogenic and superconducting systems can successfully be simulated using this library.

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Section: Cryocoolersmentioning

confidence: 99%

The CryoLib - Modelling Superconductors with Modelica

Pollok¹,

Zimmer²

2019

Linköping Electronic Conference Proceedings

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“…Since the early 1990s, the development of rare-earth-based magnetic regenerator such as Er 3 Ni, having high heat capacity at temperatures below 10 K, has allowed improvement in the cooling power of regenerative-cycle cryocoolers at very low temperatures, permitting the achievement of working refrigeration temperatures in the liquid helium [10]. The use of rare earth compounds having a heat capacity peak at a low temperature has made it possible for today's Gifford-McMahon (GM) cryocoolers to achieve cooling powers higher than 1 W at 4.2 K [11]. If materials with larger heat capacity at temperature below 10 K than Er 3 Ni are available, the cooling efficiency of GM cryocoolers is improved.…”

Section: Introductionmentioning

confidence: 99%

Magnetocaloric effects of ferromagnetic erbium mononitride

Nakagawa

Arakawa

Sako

et al. 2006

Journal of Alloys and Compounds

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“…GM cryocooler has made great progress in its refrigeration power below 10 K. using magnetic regenerator materials such as ErNio.gCoo.1 [2]. The largest cooling capacity at 4.2 K is above 1 W, and it realizes some practical and reliable applications of the 4 K-GM cryocooler.…”

Section: Introductionmentioning

confidence: 99%

Experimental apparatus for critical current measurement above 5 K using Bi-based oxide current leads

Hasebe

Mitsubori

Sakuraba

et al. 1997

IEEE Trans. Appl. Supercond.

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An experimental a p p a r a t u s f o r the measurement of temperature dependence of critical current within a s t r o n g magnetic field has been developed. Samples, which a r e tested by the four probe method, a r e cooled by a Gifford-McMahon (GM) type cryocooler to the lowest temperature of 5K. The sample holder has a diameter of 70 mm a n d a height of 70 mm. Transport currents, up to 150 A, is supplied to two samples through Bi-based oxide superconducting current leads. An external magnetic field of up to 15 T, which is applied to the samples perpendicularly to sample axis, is generated by a water cooled single Bitter magnet with a room temperature bore of 82 mm. As a performance test, the critical current properties of a silver clad Bibased oxide tape have been measured at 5.5 K, 30 K and 50 K within a magnetic field u p to 15 T. This experiment has demonstrated t h e validity of this experimental apparatus.

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Development of 1.5W 4K G-M Cryocooler with Magnetic Regenerator Material

Cited by 22 publications

References 1 publication

The CryoLib - Modelling Superconductors with Modelica

The CryoLib - Modelling Superconductors with Modelica

Magnetocaloric effects of ferromagnetic erbium mononitride

Experimental apparatus for critical current measurement above 5 K using Bi-based oxide current leads

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