5th Blemab meeting 22/06/2022

The muon tracking module handling system is being set up.

KTH model for evaluating the burden distribution inside blast furnace is divided into two sub models: Burden charging and Burden descent models. The Burden charging model is expected to estimate the formation of new stock line and evaluate radial ore to coke distribution in the first layer in throat by using Discrete element method(DEM). This model is being tested on the geometry of the LKAB experimental blast furnace (MuBlast report) and needs to be tuned with process data from Bremen blast furnace. The information obtained from this Burden charging model is expected to be used as boundary condition for the Burden descent model. KTH has adopted two approaches in modelling the gas solid flow in Blast furnace. The first approach uses conventional Computational fluid dynamics (CFD), to solve the Euler-Euler model, with only two phases: solid and gas phases. The second approach uses asymptotic methods to analyse the two phase steady-state Euler-Euler model for gas-solid flow in blast furnace. The governing equations in the second approach are simplified using realistic scaling assumptions based on difference in residence times between as and solid phase in blast furnace. Such a model reduction has never been performed before and could produce similar results to CFD t next to no computational cost.

The full MC simulation tool developed for the BLEMAB project is released together with some inspection tools, including a visualizer for the event display of the simulation: in this way, the user can check the geometry and the behavior of the generated muons. In the picture an example of event display is shown.

Laboratory setup to test the performance of the BLEMAB detector front-end electronics and DAQ. A good characterization of the electronics allows it to be calibrated to optimize muon tracking and data acquisition.