6th Blemab meeting 30/11/2022

6th Blemab meeting 30/11/2022

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Muon tracking handling system under construction at CSM laboratory. The scintillator planes can rotate around one horizontal axis and the rotation of the system can be controlled remotely. The maximum allowed rotation is approximately +- 60° with respect to the vertical axis..

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KTH has employed a 2D slot Discrete Element (DEM) model to generate a layered burden structure of coke and ore inside the blast furnace. In this model, coke particles are removed from the bottom to simulate its consumption in raceway and the ore particles are removed after they pass cohesive zone, whose shape and location has been assumed. As the particles are removed, the alternate layers of coke and ore are charged at the top of the blast furnace according to a given ratio. The layered structure thus generated will then be used a starting state for predicting the cohesive zone using a DEM-CFD model. On the other hand, KTH has employed asymptotic methods to analyse the two phase steady-state Euler-Euler model for gas-solid flow in blast furnace with realistic scaling assumptions. This approach has been tested on a 2D axisymmetric blast furnace geometry and yielded mathematical expressions for solid volume fraction and solid velocity at next to no computational cost. The approach will be later expanded to include transient behaviour of burden flow with two particle types, coupled with heat transfer and chemical reactions to determine the different zones inside the blast furnace.

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Construction of detector modules by INFN:

  • Scintillator bars production is on going
  • Optical sensors are available (already installed for 3 complete modules)
  • Detector’s modules: 1st module completed + 2 modules almost completed (for the 1st detector)
  • Starting in parallel the production of other 3 modules
  • DAQ electronics and cabling have been produced and tested in Naples, already available in Florence for one full prototype
  • Internal cabling of each module: preparation on going.