ESS target helium experiments at Lund University

Per Nilsson, Alessandro Schönborn, Jens Klingmann

Research output: Chapter in Book/Report/Conference proceedingPaper in conference proceedingpeer-review

Abstract

In ESS, a 5 MW proton beam will hit a helium cooled tungsten target to generate neutrons by spallation. For the purpose of investigating various aspects of cooling with helium, an experimental system has been constructed at Lund University, Department of Energy Sciences. A helium flow of 3 g/s is circulated in a closed loop with pre-heater, cooler, filters and a test vessel. The vessel has windows for measurements and is designed for 10 bar and above 400°C. In the test vessel, a tube forms a helium jet of up to 150 m/s onto a coin shaped material sample. One purpose of the system is to investigate erosion of sample surfaces. Drilling and attaching equipment to the surface had to be avoided, so the setup has been benchmarked and the comparison was used to tune a CFD model. Then the model is used to assess the conditions in the experiments. The setup, as well as the tests and calculations, are described and it is concluded that the temperature and velocity estimates are sufficient for the experiments to be performed.

Original languageEnglish
Title of host publication2016 24th International Conference on Nuclear Engineering
Subtitle of host publicationThermal-Hydraulics
PublisherAmerican Society Of Mechanical Engineers (ASME)
Number of pages11
Volume3
ISBN (Electronic)9780791850039
DOIs
Publication statusPublished - 2016
Event2016 24th International Conference on Nuclear Engineering, ICONE 2016 - Charlotte, United States
Duration: 2016 Jun 262016 Jun 30

Conference

Conference2016 24th International Conference on Nuclear Engineering, ICONE 2016
Country/TerritoryUnited States
CityCharlotte
Period2016/06/262016/06/30

Subject classification (UKÄ)

  • Energy Engineering

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