1. EUROTRANS: WP1.5 Technical meeting, Bologna, May 28-29, 2008 1 L. Mansani mansani@nuc.ansaldo.it WP1.2 EFIT and XP-ADS Data

2. EUROTRANS: WP1.5 Technical meeting, Bologna, May 28-29, 2008 2 Reference Documents EFIT D1.24 Main Component Functional Sizing of the EFIT (under review to make consistent with D1.26 and to include primary system pressure losses, Lead volume, primary and target pumps characteristics, DHR 1 & DHR 2, CFX evaluation, etc) D1.26 Main Component Assembly Drawings of EFIT (issued) XT-ADS D1.27 & D1.28 Description and functional sizing of the Main Components of the Reference Design of the XT-ADS (Draft) Main Component Assembly Drawings of EFIT (Draft)

3. EUROTRANS: WP1.5 Technical meeting, Bologna, May 28-29, 2008 3 P- head 1.37 bar SG ΔPsg 0.4 bar mfr 4500 kg/s ΔPp 0.27 bar mfr 9000 kg/s ΔPc = 0.7bar mfr = 33000 kg/s ΔPc-in = 0.3 bar ΔPc-out = 0.1 bar ΔP-rods = 0.2bar ΔPc-grids = 0.1 bar ΔPsg + ΔPc = P-head – ΔPp ΔPsg Pressure Drops and Free Levels in the EFIT Primary System Primary coolant flow rates [Kg/s] total: 36000 across the core - fuel assemblies: 33000 - fuel assemblies by-pass: 650 - dummy assemblies: 550 across the HX of the Target Unit: 1500 across each pump: 9000 across each SG: 4500 Δ Pc: fuel assemblies pressure drop ΔPp: pump duct pressure drop, with pump working ΔPsg: SG pressure drop P-head: head of the pump +1085 +1473 +406 +1985 SGU Midplane -1655 Core Midplane -5355 Pump ΔPp= 0.5 ξρv 2 ξ=2.2 pump in operation ξ=3.7 pump free ξ= 5.6 pump locked

4. EUROTRANS: WP1.5 Technical meeting, Bologna, May 28-29, 2008 4 SG v = 0.6 m/s Lead Mass Distribution and Average Velocities in the EFIT Primary System Pump duct v = 1.5 m/s M = 570 tons M = 855 tons M = 589 tons (8 SGs & 4 PPs) M = 3596 tons Total Mass of Lead = 5954 tons DHR v = 0.15 m/s M = 170 tons +1085 +1473 +406 +1985 DHR M = 174 t Core v = 1 m/s

5. EUROTRANS: WP1.5 Technical meeting, Bologna, May 28-29, 2008 5 EFIT Primary Pump Characteristic

6. EUROTRANS: WP1.5 Technical meeting, Bologna, May 28-29, 2008 6 XT- ADS General Arrangement

7. EUROTRANS: WP1.5 Technical meeting, Bologna, May 28-29, 2008 7 XT- ADS General Arrangement

8. EUROTRANS: WP1.5 Technical meeting, Bologna, May 28-29, 2008 8 XT- ADS Primary Heat Exchanger

9. EUROTRANS: WP1.5 Technical meeting, Bologna, May 28-29, 2008 9 Core Mass Flow Rates Fuel A: 4518 kg/s By Pass: 296 kg/s Dummy A:1258 kg/s Target: 206 kg/s Storage F: 90 kg/s Others: 631 kg/s Core Pressure Drop Mass flow rate: 4518 kg/s Pressure drop: 90900 Pa Core v = 1.5 m/s Pump (N° 2) mfr/pump: 3500 kg/s ΔP pump : 47000 Pa Pump duct v = 1.9 m/s Δp pump = 0.5 ξ ρ v 2 ξ= 2.5 pump working ξ= 3.3 pump not locked ξ= 4.8 pump locked PHX (N° 4) mfr/PHX: 1750 kg/s ΔP PHX = 25000 Pa v = 1 m/s Mass Flow Rate, Pressure Drops and Free Levels In the XT-ADS Primary System Data for primary system design

10. EUROTRANS: WP1.5 Technical meeting, Bologna, May 28-29, 2008 10 XT- ADS Primary Pump Characteristic