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L. Mansani [email protected]. WP1.2 EFIT and XP-ADS Data. Reference Documents. EFIT - PowerPoint PPT Presentation
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1EUROTRANS: WP1.5 Technical meeting, Bologna, May 28-29, 2008
L. Mansani
WP1.2WP1.2EFIT and XP-ADS DataEFIT and XP-ADS Data
2EUROTRANS: WP1.5 Technical meeting, Bologna, May 28-29, 2008
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)
3EUROTRANS: WP1.5 Technical meeting, Bologna, May 28-29, 2008
P- head 1.37 bar
SG
ΔPsg0.4 bar
mfr 4500 kg/s
ΔPp0.27 bar
mfr9000 kg/s
ΔPc = 0.7barmfr = 33000 kg/s
ΔPc-in = 0.3 barΔPc-out = 0.1 barΔP-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
ΔPc: 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
2v5.0p
Pump ΔPp= 0.5 ξρv2
ξ=2.2 pump in operationξ=3.7 pump freeξ= 5.6 pump locked
4EUROTRANS: WP1.5 Technical meeting, Bologna, May 28-29, 2008
SGv = 0.6 m/s
Lead Mass Distribution and Average Velocities in the EFIT Primary System
Pump ductv = 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
DHRv = 0.15 m/s
M = 170 tons
+1085
+1473
+406
+1985
DH
R
M =
17
4 t
Corev = 1 m/s
5EUROTRANS: WP1.5 Technical meeting, Bologna, May 28-29, 2008
EFIT Primary Pump Characteristic
6EUROTRANS: WP1.5 Technical meeting, Bologna, May 28-29, 2008
XT- ADS General Arrangement
7EUROTRANS: WP1.5 Technical meeting, Bologna, May 28-29, 2008
XT- ADS General Arrangement
8EUROTRANS: WP1.5 Technical meeting, Bologna, May 28-29, 2008
XT- ADS Primary Heat Exchanger
9EUROTRANS: WP1.5 Technical meeting, Bologna, May 28-29, 2008
Core Mass Flow RatesFuel A: 4518 kg/sBy Pass: 296 kg/sDummy A: 1258 kg/sTarget: 206 kg/sStorage F: 90 kg/sOthers: 631 kg/s
Core Pressure DropMass flow rate: 4518 kg/sPressure drop: 90900 PaCore v = 1.5 m/s
Pump (N° 2)mfr/pump: 3500 kg/sΔPpump: 47000 PaPump duct v = 1.9 m/sΔppump = 0.5 ξ ρ v2
ξ= 2.5 pump workingξ= 3.3 pump not lockedξ= 4.8 pump locked
PHX (N° 4)mfr/PHX: 1750 kg/sΔPPHX = 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
Mid PointFuel
Mid PointPHX
2000
900
10EUROTRANS: WP1.5 Technical meeting, Bologna, May 28-29, 2008
XT- ADS Primary Pump Characteristic