Replication Data for: R744 modular refrigeration technology at -50degC (doi:10.18710/DCD62U)

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Replication Data for: R744 modular refrigeration technology at -50degC

doi:10.18710/DCD62U

DataverseNO

2022-07-05

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Blust, Stefanie; Barroca, Pierre A. C.; Petagna, Paolo; Hanf, Pierre; Hafner,Armin, 2022, "Replication Data for: R744 modular refrigeration technology at -50degC", https://doi.org/10.18710/DCD62U, DataverseNO, V1

Replication Data for: R744 modular refrigeration technology at -50degC

doi:10.18710/DCD62U

Blust, Stefanie (NTNU – Norwegian University of Science and Technology)

Barroca, Pierre A. C. (NTNU – Norwegian University of Science and Technology)

Petagna, Paolo (CERN – European Organization for Nuclear Research)

Hanf, Pierre (CERN – European Organization for Nuclear Research)

Hafner,Armin (NTNU – Norwegian University of Science and Technology)

Barroca, Pierre A. C.

NTNU – Norwegian University of Science and Technology

2021-10-20

Dymola

TIL

TILMedia

DaVE

MATLAB

DataverseNO

NTNU – Norwegian University of Science and Technology

Blust, Stefanie

Blust, Stefanie

2022-05-11

2022-07-13

https://doi.org/10.18710/DCD62U

Engineering, Refrigeration, Natural refrigerant, Carbon Dioxide, CERN, Detector cooling, 2-stage compression, Modular technology

To cool down the detectors of the Large Hadron Collider, namely ATLAS and CMS, a R744-R744 cascade system is needed having a primary 2-stage compression loop on the high pressure side and a pumped, oil-free low-pressure loop on the evaporation side. The primary refrigeration system is used to guaranty the pump of the secondary loop a stable 10K sub-cooling. Two demonstration plants (System A & B) are built to evaluate the control logic and oil management before the cooling system is built on-site. Field and simulation data of System A are analyzed to evaluate the systems control logic.<br> This work presents the experimental results obtained for a modular, trans-critical demonstration plant "System A" at CERN (DEMO). The experimental tests are carried out to analyze the systems control logic to guarantee a stable and reliable operation on the final system.<br> Furthermore, it presents simulation results obtained for a modular, trans-critical demonstration plant "System A" at CERN (DYM). Simulations are done to validate the experimental results. The simulation of the demonstration plant explores the systems control logic adopted to manage two vapour compressor modules.

S, B., C, B. P. A., P, P., P, H., & A, H. (2022, June 13). R744 modular refrigeration technology at -50℃. [Text]. 15th IIR-Gustav Lorentzen Conference on Natural Refrigerants (GL2022). Proceedings. Trondheim, Norway, June 13-15th 2022. https://doi.org/10.18462/iir.gl2022.0023

10.18462/iir.gl2022.0023

S, B., C, B. P. A., P, P., P, H., & A, H. (2022, June 13). R744 modular refrigeration technology at -50℃. [Text]. 15th IIR-Gustav Lorentzen Conference on Natural Refrigerants (GL2022). Proceedings. Trondheim, Norway, June 13-15th 2022. https://doi.org/10.18462/iir.gl2022.0023

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00_README_file.txt

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Figure4_DYM_Averagedpressuretrend.mat

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Data set used in Figure 4.

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Figure4_DYM_coolingload.mat

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Figure4_DYM_massflow.mat

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Figure5_27_DYM_pressuretrends.mat

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Figure 5: simulation results: pressure trends (trans-critical, liquid receiver and suction pressure)

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Figure5_DEMO_27_massflow.csv

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Mass flow rate extracted from System A and used as input in simulation tool Dymola.

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Figure5_DEMO_PT5002Pa.csv

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Experimental trans-critical pressure trend (System A)

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Figure5_DEMO_PT5004Pa.csv

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Experimental liquid receiver pressure trend (System A)

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Figure5_DEMO_PT5064Pa.csv

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Experimental suction pressure trend (System A)

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