Evaporative CO2 heat transfer measurements for cooling systems of particle physics detectors
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Date
Authors
Colijn, A. P.
Verlaat, B.
Journal Title
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Volume Title
Publisher
International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics
Abstract
Paper presented at the 7th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, Turkey, 19-21 July, 2010.
A major challenge in particle physics detectors is to transport the heat developed in their electronics to the outside world. Particle detectors require a minimum of material in order not to disturb accurate measurements of particle trajectories. CO, has superior behavior in small diameter- low material - tubes, although detailed experimental data are lacking. Understanding the behavior of evaporative C02 cooling in small diameter tubing is therefore of large interest for future detector cooling developments.At the Dutch Institute for Subatomic Physics, Nikhef, we are developing an automated CO, test set-up able to scan the full phase space of mass fluxes, heat fluxes, vapor quality and temperature. A wide range of tube diameters (0.5 to 4mm) will be explored and data will be compared to the available models.In this paper we will present the test setup and the first measurements of heat transfer, pressure drop, and dry-out behavior at room temperature. Lower evaporation temperatures down to -50°C will be explored in a later stage after an upgrade of the research plant.
A major challenge in particle physics detectors is to transport the heat developed in their electronics to the outside world. Particle detectors require a minimum of material in order not to disturb accurate measurements of particle trajectories. CO, has superior behavior in small diameter- low material - tubes, although detailed experimental data are lacking. Understanding the behavior of evaporative C02 cooling in small diameter tubing is therefore of large interest for future detector cooling developments.At the Dutch Institute for Subatomic Physics, Nikhef, we are developing an automated CO, test set-up able to scan the full phase space of mass fluxes, heat fluxes, vapor quality and temperature. A wide range of tube diameters (0.5 to 4mm) will be explored and data will be compared to the available models.In this paper we will present the test setup and the first measurements of heat transfer, pressure drop, and dry-out behavior at room temperature. Lower evaporation temperatures down to -50°C will be explored in a later stage after an upgrade of the research plant.
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Keywords
Particle physics detectors, Cooling systems, Nikhef
Sustainable Development Goals
Citation
Colijn, AP & Verlaat, B 2010, 'Evaporative CO2 heat transfer measurements for cooling systems of particle physics detectors', Paper presented to the 7th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, Turkey, 19-21 July 2010.