Fuel loading and homogeneity analysis of HFIR design fuel plates loaded with uranium silicide fuel

Update to advanced neutron source steady-state thermal-hydraulic report

“…showing a 20% exceedance probability for critical heat flux a t z ....... [3][4][5][6][7][8][9][10][11] Illustrative Venn diagram consistent with results in Fig . 3 …”

“…The thickness of the beam tube is 14.1 mm, and both the water gap and the cooling shroud thickness are assumed to be 3 mm. [4][5][6][7][8][9][10][11][12][13] These calculations assumed that no heat is generated in the water between the shroud and the beam tube, The heat generated in the beam tube wall is transferred to the water gap. From the water gap, this heat is transferred to the inside surface of the cooling shroud, and the heat from there, together with the heat generated in the cooling shroud wall, is transferred to the water outside of the cooling shroud by natural convection.…”

“…Before the control rod is sheared, the AP from the hypothetical point of shear to the control rod exit is 80. 4 kPa outside the control rod (because of the roller plate AP) and only 12 kPa inside the control rod. It is assumed that the flow velocity is 6 m/s in the intact geometry, both inside and outside the control rod.…”