Vibration free 4.5K sorption cooler

J.F. Burger; H.J. Holland; R.J. Meijer; A. Sirbi; H.J.M. ter Brake

doi:10.1063/1.2908529

Vibration free 4.5K sorption cooler

J.F. Burger, H.J. Holland, R.J. Meijer, A. Sirbi, H.J.M. ter Brake

Research output: Contribution to conference › Paper › Academic

4 Citations (Scopus)

Abstract

At the University of Twente, a breadboard 4.5 K sorption cooler was developed under ESA contract. It has no moving parts and, therefore, is essentially vibration-free. Moreover, it has the potential of a very long life. This cooler is a favorite option for missions such as ESA's Darwin mission, which is a future space interferometer consisting of a few free flying telescopes and a central beam combiner. Because of the optics involved, hardly any vibration can be tolerated. The cooler consists of a hydrogen stage cooling from 80 K to 14.5 K and a helium stage establishing 10 mW at 4.5 K. Both stages use micro-porous activated carbon as the adsorption material. The two cooler stages need 8 W of input power and are heat sunk at two passive radiators at temperatures of about 50 and 80 K. We developed and built a demonstrator of the helium stage. In the paper, the design, realization and tests of this demonstrator cooler are reviewed.

Original language	English
Pages	1613-1620
DOIs	https://doi.org/10.1063/1.2908529
Publication status	Published - 16 Jul 2008
Event	2007 Cryogenic Engineering Conference and International Cryogenic Materials Conference, CEC/ICMC 2007 - Chattanooga Convention Center, Chattanooga, United States Duration: 16 Jul 2007 → 20 Jul 2007 http://www.cec-icmc.org/cec-icmc-2007/

Conference

Conference	2007 Cryogenic Engineering Conference and International Cryogenic Materials Conference, CEC/ICMC 2007
Abbreviated title	CEC/ICMC
Country	United States
City	Chattanooga
Period	16/07/07 → 20/07/07
Internet address	http://www.cec-icmc.org/cec-icmc-2007/

Keywords

METIS-252484

Access to Document

10.1063/1.2908529

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title = "Vibration free 4.5K sorption cooler",

abstract = "At the University of Twente, a breadboard 4.5 K sorption cooler was developed under ESA contract. It has no moving parts and, therefore, is essentially vibration-free. Moreover, it has the potential of a very long life. This cooler is a favorite option for missions such as ESA's Darwin mission, which is a future space interferometer consisting of a few free flying telescopes and a central beam combiner. Because of the optics involved, hardly any vibration can be tolerated. The cooler consists of a hydrogen stage cooling from 80 K to 14.5 K and a helium stage establishing 10 mW at 4.5 K. Both stages use micro-porous activated carbon as the adsorption material. The two cooler stages need 8 W of input power and are heat sunk at two passive radiators at temperatures of about 50 and 80 K. We developed and built a demonstrator of the helium stage. In the paper, the design, realization and tests of this demonstrator cooler are reviewed.",

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AB - At the University of Twente, a breadboard 4.5 K sorption cooler was developed under ESA contract. It has no moving parts and, therefore, is essentially vibration-free. Moreover, it has the potential of a very long life. This cooler is a favorite option for missions such as ESA's Darwin mission, which is a future space interferometer consisting of a few free flying telescopes and a central beam combiner. Because of the optics involved, hardly any vibration can be tolerated. The cooler consists of a hydrogen stage cooling from 80 K to 14.5 K and a helium stage establishing 10 mW at 4.5 K. Both stages use micro-porous activated carbon as the adsorption material. The two cooler stages need 8 W of input power and are heat sunk at two passive radiators at temperatures of about 50 and 80 K. We developed and built a demonstrator of the helium stage. In the paper, the design, realization and tests of this demonstrator cooler are reviewed.

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