Abstract
| Original language | English |
|---|---|
| Pages (from-to) | 223-231 |
| Journal | International journal of refrigeration |
| Volume | 69 |
| DOIs | |
| Publication status | Published - 2016 |
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Keywords
- IR-101270
- METIS-317874
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A micromachined Joule–Thomson cryogenic cooler with parallel two-stage expansion. / Cao, Haishan; Vanapalli, Srinivas; Holland, Herman J.; Vermeer, Cristian Hendrik; ter Brake, Hermanus J.M.
In: International journal of refrigeration, Vol. 69, 2016, p. 223-231.Research output: Contribution to journal › Article › Academic › peer-review
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 -