Dissipative effects in dilution refrigerators

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Abstract

Research on the flow properties of 3He- 4He mi.xtures in our group has resulted in a description of the 3He-iHe flow properties taking into account both mutual friction ruld viscosity . In this paper the effects of these dissipative forces on the operation of 3He circulating dilution refrigerators are analyzed numerically. It will be shown that mutual friction leads to rather severe conditions regarding the diameter and the length of the dilute exit tube of the mixing chamber for a specified flow rate. The limiting temperature in the Single-cycle mode is in the low flow-rate regime determined by viscous dissipation. but at higher flow rates the temperature increases with the molar 3He-flow rate as a result of the increasing influence of mutual friction.
Original languageEnglish
Pages (from-to)29-30
JournalEuropean Physical Journal : Applied Physics
Volume26
Issue number3
DOIs
Publication statusPublished - 1987

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Refrigerators
refrigerators
Dilution
dilution
flow velocity
Flow rate
friction
Friction
dissipation
chambers
tubes
Temperature
cycles
temperature

Cite this

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title = "Dissipative effects in dilution refrigerators",
abstract = "Research on the flow properties of 3He- 4He mi.xtures in our group has resulted in a description of the 3He-iHe flow properties taking into account both mutual friction ruld viscosity . In this paper the effects of these dissipative forces on the operation of 3He circulating dilution refrigerators are analyzed numerically. It will be shown that mutual friction leads to rather severe conditions regarding the diameter and the length of the dilute exit tube of the mixing chamber for a specified flow rate. The limiting temperature in the Single-cycle mode is in the low flow-rate regime determined by viscous dissipation. but at higher flow rates the temperature increases with the molar 3He-flow rate as a result of the increasing influence of mutual friction.",
author = "J.G.M. Kuerten and J.C.H. Zeegers and {Waele, de}, A.T.A.M. and H.M. Gijsman",
year = "1987",
doi = "10.1051/epjap:2004022",
language = "English",
volume = "26",
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journal = "European Physical Journal : Applied Physics",
issn = "1286-0042",
publisher = "EDP Sciences",
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}

Dissipative effects in dilution refrigerators. / Kuerten, J.G.M.; Zeegers, J.C.H.; Waele, de, A.T.A.M.; Gijsman, H.M.

In: European Physical Journal : Applied Physics, Vol. 26, No. 3, 1987, p. 29-30.

Research output: Contribution to journalArticleAcademicpeer-review

TY - JOUR

T1 - Dissipative effects in dilution refrigerators

AU - Kuerten, J.G.M.

AU - Zeegers, J.C.H.

AU - Waele, de, A.T.A.M.

AU - Gijsman, H.M.

PY - 1987

Y1 - 1987

N2 - Research on the flow properties of 3He- 4He mi.xtures in our group has resulted in a description of the 3He-iHe flow properties taking into account both mutual friction ruld viscosity . In this paper the effects of these dissipative forces on the operation of 3He circulating dilution refrigerators are analyzed numerically. It will be shown that mutual friction leads to rather severe conditions regarding the diameter and the length of the dilute exit tube of the mixing chamber for a specified flow rate. The limiting temperature in the Single-cycle mode is in the low flow-rate regime determined by viscous dissipation. but at higher flow rates the temperature increases with the molar 3He-flow rate as a result of the increasing influence of mutual friction.

AB - Research on the flow properties of 3He- 4He mi.xtures in our group has resulted in a description of the 3He-iHe flow properties taking into account both mutual friction ruld viscosity . In this paper the effects of these dissipative forces on the operation of 3He circulating dilution refrigerators are analyzed numerically. It will be shown that mutual friction leads to rather severe conditions regarding the diameter and the length of the dilute exit tube of the mixing chamber for a specified flow rate. The limiting temperature in the Single-cycle mode is in the low flow-rate regime determined by viscous dissipation. but at higher flow rates the temperature increases with the molar 3He-flow rate as a result of the increasing influence of mutual friction.

U2 - 10.1051/epjap:2004022

DO - 10.1051/epjap:2004022

M3 - Article

VL - 26

SP - 29

EP - 30

JO - European Physical Journal : Applied Physics

JF - European Physical Journal : Applied Physics

SN - 1286-0042

IS - 3

ER -