Safety and reliability assessment of CO2 refrigeration system for underground applications below -50 °C

A new CO2 refrigeration concept is evaluated to cool the ATLAS and CMS experiments installed close to 100 m underground, at the Large Hadron Collider (LHC) at CERN. The first prototype unit produced to validate the conceptual design and to assess safety and reliability of the system has been commissioned. This paper presents results obtained, discusses the safety and reliability of the system and discourses on the list of recommendations for the future final units to cover the cooling loads of 380 kW for ATLAS and 750 kW for CMS at -53 °C evaporation temperature.

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Publication Details

Journal
Refrigeration Technology
Published
2024-09-09
DOI
https://doi.org/10.17816/rf635386
Primary Topic
Refrigeration and Air Conditioning Technologies
Type
article
Field-Weighted Citation Impact
0.00
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article

Safety and reliability assessment of CO2 refrigeration system for underground applications below -50 °C

Pierre Barroca, Daniella Teixeira, B. Verlaat
Refrigeration Technology
Refrigeration and Air Conditioning Technologies
article

Safety and reliability assessment of CO2 refrigeration system for underground applications below -50 °C

Pierre Barroca, Daniella Teixeira, B. Verlaat
article en

Abstract

A new CO2 refrigeration concept is evaluated to cool the ATLAS and CMS experiments installed close to 100 m underground, at the Large Hadron Collider (LHC) at CERN. The first prototype unit produced to validate the conceptual design and to assess safety and reliability of the system has been commissioned. This paper presents results obtained, discusses the safety and reliability of the system and discourses on the list of recommendations for the future final units to cover the cooling loads of 380 kW for ATLAS and 750 kW for CMS at -53 °C evaporation temperature.

Refrigeration Technology
University of Cape Town (ZA), Energy Research Institute (CN)
Openalex Percentile: Top 86%
Refrigeration and Air Conditioning Technologies
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