A micromachined Joule–Thomson cryogenic cooler with parallel two-stage expansion

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4 Citations (Scopus)

Abstract

There is an increasing need for localized cooling in integrated circuit/microfluidic chips, where cooling is currently achieved by relatively large and bulky cooling systems. Joule–Thomson (JT) cryocoolers are suitable to address these size limitations because they have no cold moving parts and, therefore, can be easily miniaturized. We present a JT microcooler with parallel two-stage expansion that cools down to a no-load temperature of 83 K with an ambient temperature of 295 K, whereas a single-stage microcooler typically cools to about 100 K. In addition, this microcooler has the attractive feature of providing cooling powers at two temperature levels without additional manufacturing or processing steps. In changing the temperature at the first expansion position, the cooling power can be exchanged between the two expansion stages. A dynamic model was developed to predict the actual performance of the microcooler. The accuracy of this model was verified through the comparison between experimental and simulation results.
Original languageEnglish
Pages (from-to)223-231
JournalInternational journal of refrigeration
Volume69
DOIs
Publication statusPublished - 2016

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Cryogenics
Cooling
Temperature
Cooling systems
Microfluidics
Integrated circuits
Dynamic models
Processing

Keywords

  • IR-101270
  • METIS-317874

Cite this

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title = "A micromachined Joule–Thomson cryogenic cooler with parallel two-stage expansion",
abstract = "There is an increasing need for localized cooling in integrated circuit/microfluidic chips, where cooling is currently achieved by relatively large and bulky cooling systems. Joule–Thomson (JT) cryocoolers are suitable to address these size limitations because they have no cold moving parts and, therefore, can be easily miniaturized. We present a JT microcooler with parallel two-stage expansion that cools down to a no-load temperature of 83 K with an ambient temperature of 295 K, whereas a single-stage microcooler typically cools to about 100 K. In addition, this microcooler has the attractive feature of providing cooling powers at two temperature levels without additional manufacturing or processing steps. In changing the temperature at the first expansion position, the cooling power can be exchanged between the two expansion stages. A dynamic model was developed to predict the actual performance of the microcooler. The accuracy of this model was verified through the comparison between experimental and simulation results.",
keywords = "IR-101270, METIS-317874",
author = "Haishan Cao and Srinivas Vanapalli and Holland, {Herman J.} and Vermeer, {Cristian Hendrik} and {ter Brake}, {Hermanus J.M.}",
year = "2016",
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pages = "223--231",
journal = "International journal of refrigeration",
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TY - JOUR

T1 - A micromachined Joule–Thomson cryogenic cooler with parallel two-stage expansion

AU - Cao, Haishan

AU - Vanapalli, Srinivas

AU - Holland, Herman J.

AU - Vermeer, Cristian Hendrik

AU - ter Brake, Hermanus J.M.

PY - 2016

Y1 - 2016

N2 - There is an increasing need for localized cooling in integrated circuit/microfluidic chips, where cooling is currently achieved by relatively large and bulky cooling systems. Joule–Thomson (JT) cryocoolers are suitable to address these size limitations because they have no cold moving parts and, therefore, can be easily miniaturized. We present a JT microcooler with parallel two-stage expansion that cools down to a no-load temperature of 83 K with an ambient temperature of 295 K, whereas a single-stage microcooler typically cools to about 100 K. In addition, this microcooler has the attractive feature of providing cooling powers at two temperature levels without additional manufacturing or processing steps. In changing the temperature at the first expansion position, the cooling power can be exchanged between the two expansion stages. A dynamic model was developed to predict the actual performance of the microcooler. The accuracy of this model was verified through the comparison between experimental and simulation results.

AB - There is an increasing need for localized cooling in integrated circuit/microfluidic chips, where cooling is currently achieved by relatively large and bulky cooling systems. Joule–Thomson (JT) cryocoolers are suitable to address these size limitations because they have no cold moving parts and, therefore, can be easily miniaturized. We present a JT microcooler with parallel two-stage expansion that cools down to a no-load temperature of 83 K with an ambient temperature of 295 K, whereas a single-stage microcooler typically cools to about 100 K. In addition, this microcooler has the attractive feature of providing cooling powers at two temperature levels without additional manufacturing or processing steps. In changing the temperature at the first expansion position, the cooling power can be exchanged between the two expansion stages. A dynamic model was developed to predict the actual performance of the microcooler. The accuracy of this model was verified through the comparison between experimental and simulation results.

KW - IR-101270

KW - METIS-317874

U2 - 10.1016/j.ijrefrig.2016.06.023

DO - 10.1016/j.ijrefrig.2016.06.023

M3 - Article

VL - 69

SP - 223

EP - 231

JO - International journal of refrigeration

JF - International journal of refrigeration

SN - 0140-7007

ER -