Clogging in micromachined Joule-Thomson coolers: Mechanism and preventive measures

Research output: Contribution to journalArticleAcademicpeer-review

7 Citations (Scopus)

Abstract

Micromachined Joule-Thomson coolers can be used for cooling small electronic devices. However, a critical issue for long-term operation of these microcoolers is the clogging caused by the deposition of water that is present as impurity in the working fluid. We present a model that describes the deposition process considering diffusion and kinetics of water molecules. In addition, the deposition and sublimation process was imaged, and the experimental observation fits well to the modeling predictions. By changing the temperature profile along the microcooler, the operating time of the microcooler under test at 105 K extends from 11 to 52 h.
Original languageUndefined
Article number034107
Pages (from-to)034107-1-034107-4
JournalApplied physics letters
Volume103
Issue number3
DOIs
Publication statusPublished - 18 Jun 2013

Keywords

  • IR-86891
  • METIS-297147

Cite this

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title = "Clogging in micromachined Joule-Thomson coolers: Mechanism and preventive measures",
abstract = "Micromachined Joule-Thomson coolers can be used for cooling small electronic devices. However, a critical issue for long-term operation of these microcoolers is the clogging caused by the deposition of water that is present as impurity in the working fluid. We present a model that describes the deposition process considering diffusion and kinetics of water molecules. In addition, the deposition and sublimation process was imaged, and the experimental observation fits well to the modeling predictions. By changing the temperature profile along the microcooler, the operating time of the microcooler under test at 105 K extends from 11 to 52 h.",
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year = "2013",
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Clogging in micromachined Joule-Thomson coolers: Mechanism and preventive measures. / Cao, Haishan; Vanapalli, Srinivas; Holland, Herman J.; Vermeer, Cristian Hendrik; ter Brake, Hermanus J.M.

In: Applied physics letters, Vol. 103, No. 3, 034107, 18.06.2013, p. 034107-1-034107-4.

Research output: Contribution to journalArticleAcademicpeer-review

TY - JOUR

T1 - Clogging in micromachined Joule-Thomson coolers: Mechanism and preventive measures

AU - Cao, Haishan

AU - Vanapalli, Srinivas

AU - Holland, Herman J.

AU - Vermeer, Cristian Hendrik

AU - ter Brake, Hermanus J.M.

PY - 2013/6/18

Y1 - 2013/6/18

N2 - Micromachined Joule-Thomson coolers can be used for cooling small electronic devices. However, a critical issue for long-term operation of these microcoolers is the clogging caused by the deposition of water that is present as impurity in the working fluid. We present a model that describes the deposition process considering diffusion and kinetics of water molecules. In addition, the deposition and sublimation process was imaged, and the experimental observation fits well to the modeling predictions. By changing the temperature profile along the microcooler, the operating time of the microcooler under test at 105 K extends from 11 to 52 h.

AB - Micromachined Joule-Thomson coolers can be used for cooling small electronic devices. However, a critical issue for long-term operation of these microcoolers is the clogging caused by the deposition of water that is present as impurity in the working fluid. We present a model that describes the deposition process considering diffusion and kinetics of water molecules. In addition, the deposition and sublimation process was imaged, and the experimental observation fits well to the modeling predictions. By changing the temperature profile along the microcooler, the operating time of the microcooler under test at 105 K extends from 11 to 52 h.

KW - IR-86891

KW - METIS-297147

U2 - 10.1063/1.4815987

DO - 10.1063/1.4815987

M3 - Article

VL - 103

SP - 034107-1-034107-4

JO - Applied physics letters

JF - Applied physics letters

SN - 0003-6951

IS - 3

M1 - 034107

ER -