Share Recommended by the IIR / 
IIR document
Evaporative cooling system with natural refrigerant at -50 ℃ and 100 m underground.
Number: 1149
Author(s) : BARROCA P., HAFNER A., PARDINAS A., VERLAAT B., ZWALINSKI L., HULEK W., PETAGNA P., HANF P., BATTISTIN M.
Summary
The cooling systems of the future tracking detectors of both ATLAS and CMS experiments at the Large Hadron Collider (LHC) at CERN will be entirely based on CO2 refrigeration technology. The system is a booster refrigeration system, composed of a two stage primary part with standard R744 equipment and a low temperature secondary loop i.e. pumped oil free CO2 is cooling the tracking detectors and condensed in the low stage evaporator. The primary refrigeration sub-system installed on surface provides cold R744 (close to triple point temperature of -53°C) to the CO2 pumped loops installed 100 m underground and rejects the heat exchanged. The process must be reliable and remain stable regardless the amount of heat exchanged, which is expected to vary throughout the lifetime of the detectors. This paper reviews alternative concepts in the design of evaporative cooling systems using natural refrigerants capable of overcoming the technical challenges.
Available documents
Evaporative cooling system with natural refrigerant at -50 ℃ and 100 m underground
Pages: 7
Available
Public price
20 €
Member price*
Free
* Best rate depending on membership category (see the detailed benefits of individual and corporate memberships).
Details
- Original title: Evaporative cooling system with natural refrigerant at -50 ℃ and 100 m underground.
- Record ID : 30027945
- Languages: English
- Subject: Technology
- Source: 14th IIR-Gustav Lorentzen Conference on Natural Refrigerants(GL2020). Proceedings. Kyoto, Japon, December 7-9th 2020.
- Publication date: 2020/12/07
- DOI: http://dx.doi.org/10.18462/iir.gl.2020.1149
- Available in the IIR library
Links
See other articles from the proceedings (120)
See the conference proceedings
Indexing
-
Design-theoretical study of hybrid CO2 transcri...
- Author(s) : CHEN G., IERIN V., SHESTOPALOV K., et al.
- Date : 2015/08/16
- Languages : English
- Source: Proceedings of the 24th IIR International Congress of Refrigeration: Yokohama, Japan, August 16-22, 2015.
- Formats : PDF
View record
-
Development of pumped CO2 systems fo...
- Author(s) : VERLAAT B., PETAGNA P., ZWALINSKI L., DAGUIN J., GIAKOUMI D., BHANOT V., COLLOT J., LATIL S., POSTEMA H., TROPEA P., DAVOINE L., FERNANDEZ GARCIA M., HULEK W., SCHMID D.
- Date : 2020/12/07
- Languages : English
- Source: 14th IIR-Gustav Lorentzen Conference on Natural Refrigerants(GL2020). Proceedings. Kyoto, Japon, December 7-9th 2020.
- Formats : PDF
View record
-
CO2 transcritical compressors.
- Author(s) : PISANO G., DALLAI M.
- Date : 2011/06/10
- Languages : English
- Source: Green new deal - green economy. The latest technology in refrigeration and air conditioning: energy issues and climate change, new refrigerants, new European regulations, new plants. XIV European Conference: June 10-11, 2011, Milan.
- Formats : PDF
View record
-
Oil-free turbo-compressors for refrigeration ap...
- Author(s) : KUS B., NEKSÅ P.
- Date : 2012/06/25
- Languages : English
- Source: 10th IIR-Gustav Lorentzen Conference on Natural Working Fluids (GL2012). Proceedings. Delft, The Netherlands, June 25-27, 2012.
- Formats : PDF
View record
-
Challenges on the development of a CO2 compress...
- Author(s) : BOSCO R., WEBER G.
- Date : 2008/09/07
- Languages : English
- Source: 8th IIR-Gustav Lorentzen Conference on Natural Working Fluids (GL2008)
- Formats : PDF
View record