Study of R-404a and R-488a Refrigerants in Low Temperature Refrigeration of Electronics

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F18%3A00325935" target="_blank" >RIV/68407700:21220/18:00325935 - isvavai.cz</a>
Result on the web
<a href="http://iifiir.org/clientBookline/service/reference.asp?INSTANCE=EXPLOITATION&OUTPUT=PORTAL&DOCID=IFD_REFDOC_0024875&DOCBASE=IFD_REFDOC_EN&SETLANGUAGE=EN" target="_blank" >http://iifiir.org/clientBookline/service/reference.asp?INSTANCE=EXPLOITATION&OUTPUT=PORTAL&DOCID=IFD_REFDOC_0024875&DOCBASE=IFD_REFDOC_EN&SETLANGUAGE=EN</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.18462/iir.hfo.2018.1180" target="_blank" >10.18462/iir.hfo.2018.1180</a>

Result language
angličtina
Original language name
Study of R-404a and R-488a Refrigerants in Low Temperature Refrigeration of Electronics
Original language description
The more ecological alternatives to R-404A such is the R-448A, R-449A or R-452A are viable non-flammable fluids for low temperature refrigeration. Very low evaporation temperatures can be achieved with two-stage reciprocating compressors, which are commercially available from multiple large manufacturers. The combination of these fluids and two-stage compressions with inter-stage cooling enables low evaporation temperature down to -70°C. The ecological replacements for R-404A have many disadvantages including lower cooling capacities, very high temperature glides and high discharge temperatures. Number of studies has been presented recently but little attention has been paid to the low temperature applications outside commercial refrigeration. We present a comparison of R-448A and R-404A refrigerants to R-218, which can be taken as a benchmark fluid in our field of low temperature cooling of high-tech electronic devices like elementary particle detectors. Our measurements were performed using special oil-less experiment cooling circuit equipped with large number of pressure and temperature sensor, flowmeters, etc. We have used Roman Pot detectors as a real power load that is installed in the Large Hadron Collider tunnel at CERN.
Czech name
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Czech description
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Project
<a href="/en/project/LM2015058" target="_blank" >LM2015058: Research Infrastructure for Experiments at CERN</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
Proceedings of 1st IIR international conference on the application of HFO refrigerants
ISBN
9782362150272
ISSN
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e-ISSN
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Number of pages
9
Pages from-to
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Publisher name
International Institute of Refrigeration
Place of publication
Paris
Event location
Birmingham
Event date
Sep 2, 2018
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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