ML20043G192
| ML20043G192 | |
| Person / Time | |
|---|---|
| Site: | North Anna  |
| Issue date: | 06/08/1990 |
| From: | VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.) |
| To: | |
| Shared Package | |
| ML20043F454 | List: |
| References | |
| NUDOCS 9006200014 | |
| Download: ML20043G192 (7) | |
Text
{{#Wiki_filter:{~', m t . Attachment l' f Core Surveillance Report for North Anna 2 Cycle 7 with Extended License Burnup Limit f I l 4 l1 l 9006200014 900608 PDR ADOCK 0D000339 P PDR
h khd she st - nn 1 psit ' q o NORTH ANNA UNIT 2 CYCLE 7 CORE SURVEILLANCE REPORT 'y FOR REDUCED TEMPERATURE OPERATION This Core Surveillance Report is provided in accordance with Section 6.9.1.7 of the North Anna Unit 2 Tecnnical Specifications, e4 M The ournuo-oependent Cycle 7 N(z) function for Technical Specification 4.2.2,2.0 is shown in Figures 1-4. N(z) was calculated accoraing to tne s procecure of VEP-NE-1-A. M The N(:) function
- will be used to confirm that the heat flux not channel 9) f artor, ~Q(:), will be limited to the Tecnnical Specification > values of l
2.19 K(z) -Q(:) s ----------, P > 0.5 and P i FQ(:) s 4.38 'K(Z), P s 0.5. The Cycle 7 Axial Flux Difference (AFD) limits for Technical Specification 3.2.1 are shown in Figure 5. These limits were calculated according to the metnoas of VEP-NE-1-A and are -comparable to the previous Cycle 7 limits. The limits on Axial-Flux Difference assure that the FQ(:) uoper ' bounc envelope is not exceeded auring eitner normal operation or in tne event of xenon recistribution following power enanges. o f "The N(:) function, when aoolied to a oower distribution measurea unaer equiliorium conditions, demonstrates that the initial conditions assumea in tne LOCA analysis are met, aiong witn tne ECCS acceptance criteria of 10CFR50.46. e
y P k . v.g n f \\ FIGURE 1 N(Z) FUNCTION FOR N2C7 AT 2893 MW HEIGHT NZ5 REDUCED TEMPERATURE OPERATION. FROM' 5000 to 7000 ~ MWD /MTU BLRNUP r TOP AND BOTTOM 15 PERCENT EXCLUDED 10.20 1.191' AS PER TECH SPEC 4.2.2.2.G. 10.00 1.186 1 -9.80 1.180 9.60 l'.175-r U 9.40 -.1.173 - 9.20. 1.179 9.00 1.188 8.80 1.199 1.22+00 8.60 1.~207 [ l-l 'l .f I l /' 8.40 1.213 [ 8.20 1.217 i i ~j i / 8.00 1.219 \\l l l
- 1. 20 + 001 l
\\ 7.80 1.219 i i 7.60 1.217 i l k l I 7.40 1.214 <= i 7.20 1.208 U -l l l ~-l l,7 l \\ ff 7.00 1.202 1.1g+00 E' 1 6.80 1.195 l / Y C 6.60 1.187 n 6.40 l'177 l f E _j 3:#gn 6.20 1.166 =. 6.00-1.155 E I 5.80. 1.145 5.60 1.139 5.1. H +00 \\ l / 5.40 -1.132 cr 20 1.120 W. l ~[ l l l 5.00. '1.-110 =. 4.80 1.106 i '{' I/ i i 1 4.60-1.109 1.12+001 i t\\ I/ I l 4,40 .1,115-l t \\ ] 4.20 1.122 l I \\ f i 4.00 -1.126 i V 1.10+00 l 3.80 1.130 i 3.60 1.132 3.40 1.133 0.00+00 2.00+00 4.00+00 6.00+00 8.00+00 1.00+01 3.20 1.133 COREHEIGHT(TEET) 3.00 1.133 2.80 1.132 i 2.60 1.132 2.40 1.135 N207/.'U N(2) TUNCil0N AT 5000-7000 llWD/nlTV SURNUP 2.20 1.140 2.00 1.147 1.80 1.152
c= .\\ t 1 ' FIGURE 2 - N(Z) FUNCTION F' OR N2C7 AT 2893 MW HEIGHT NZ6 REDUCED TEMPERATURE OPERATION FROM 7000 to 9000 MWD /MTU BtRNUP TOP AND BOTTOM 15 PERCENT EXCLUDED 10.20 1.191 AS PER TECH SPEC 4.2.2.2.G 10.00 1.186 9.80 1.180 ~ 9.60 1.175 '9.40 1.173 9.20 1.179 9.00 1.188-8.80 3.199 1.22+00 8.60 1.207 A 8.40 1.213 / lh 8.20 1.217 i l / 8.00-1.219 i 1.20+00 ( 7.80 1.219 7.60 1.217 I I I [ k 7.40 1.214 / 7.20 1.208 g i,io.00 l / \\ / 7.00 1.202 m 6.80 1.195 \\ f 6.60 1.187 g 6.40 1.177 \\ f = 6.20 -1.166 1.II+00 3 6.00 1.155 .\\ 5.80 1.145 '=. 5.60 1.139 g 1.14+00 \\ / i 5.40 1.132 5.20 1.120 g I l/ 5.00 1.110 g-I 4.80 1.106 1.12600-4.60 1.109-4.40 1.115 / 4.20 1.122 \\ / 4.00 1.126 V 3.80 1.130 1.10+00 3.60 1.132 3.40 1.134 0.00+00 2.00+00 4.00+00 6.00+00 8.00+00 1.00+01 3.20 1.139 CORE HEIGHT (FEET) 3.00 1.146 2.80 1.152 2.60 1.158 2.40 1.164 lL N207/JU N(Z) FUNCil0N AT 7000-9000 HD/WTUBURNUP 2.20 1.168 2.00 1.174 1.80 1.182 ( (
. f-t- l, [
- ir.
1 FIGURE 3 - N(2) FUNCTION F' R N2C7 AT 2893 MW HEIGHT NZ7 O REDUCED TEMPERATURE OPERATION FROM 9000 to 15600 MWD /MTU BURNUP TOP Am BOTTOM 15 PERCENT EXCLUDED 10.20 ~1.'191 AS PER TECH SPEC 4.2.2.2.G 10.00 1.186 9.80 1.180 9.60-.1.175 9.40 1.173 9.20 1.179' 9.00 1.188 B.80 1.199 n 1.24+00-B.60 1.207-i 8.40 1.213 L I l 8.20 1.217 !\\ 8.00 1.219 1.22+00l i 7.80 1.221 I l I l f '\\ ~ 7.60 .1.224 7.40 1.227 oc 7.20 1.230 .,;gical I i l t / .\\ 7.00 1.230
- t
-k 6.80 1.230 l f i 6.60 1.226 .g g 6.40 1.222 l l f ( j 6.20 1.214 = l. g 1 18+003 3 6.00 1.207 \\ f V 5.80 1.196 5 \\ 5.60 1.185 1 \\ f = 5.40 1.169- .g 1.16f00 5.20 1.147 g i 1 \\ f 5.00 1.133 l = 4.80 1.130 l i 1 1 ) l 4.60 1.129 i I 1,14+001 I t \\ i 4.40 1.126 l l l\\ i f 4.20 1.125 + l 1\\l s 4.00 1.126 l Nj 3.80 1.129 1.12100 3.60 1.131 3.40 1.133 0.00+00 2.00+00 4.00+00 6.00+00 8.00+00 1.00+01 3.20 1.139 COREHEIGHT(FEET) 3.00 1.145 2.80 1.152 2.60 1.158 -{ 2.40 .1.164 N207/JU N(2) FUNCil0N AT 9000-15600 HD/WiUBURNUP2.20 1.168 2.00 1.174 1.80 1.182 l
1-l. i FIGURE 4 - N(2) FUNCTION FOR N2C7 AT 2893 MW REDUCED TEMPERATlRE OPERATION HEIGHT NZ8 FROM 15600 MWD /MTU BWNUP TO EOL TOP Am BOTTOM 15 PERCENT EXCLl0ED AS PER TECH SPEC 4.2.2.2.G f' 9.80 1.142 9.60 1.140 i 9.40 1.147 1 9.20 1.162 9.00 1.175 8.80 1.188 8.60; 1.199. l 8.40 1.207' 8.20 1.214 [\\ 8.00 1.218 1.22+00 j 7.80 1.221 / 7.60 1.224 / 7.40 1.228 / 7.20 1.230 ae t 7.00 1.230 C-L 6.80 1.230 l-g 1.1s+00 6.60 1.226' 6.40 1.222 l' E-6.20 1.214 ( -6.00 1.207. -l \\ 5.80 1.196-5.60 1.185^ 5.40 1.169 1 3 \\ / 5.20 1.148 W 1.14+00 / 5.00 1.134 [ E \\ l l 4.80 1.131 l \\ /. 4.40 1.127 f 4.60 1.130 \\ 4.20-1.123-4.00 1.118 3.80 1.112 f.10+00 3.60-1.107 i L 0.00+00 2.00+00 4.00+GO 8.00+00 8.00+00 1.00+01 3.20 1.109 3.40 1.105~ L 'COREHEIGHT(FEET) 3.00 1.113 J l 2.80 1.120 2.60 1.125 2.40 1.130 L. N2C7/JU N(2) FUNCil0N AT 15600 MWD /MTU TO ECL 2.20 1.135 i 2.00 1.141 1.80 1.149 l'
!,c. s FIGLRE 5 - AXIAL FLUX DIFFERENCE LIMITS-AS A FIMCTION OF RATED THERMAL POWER FROM 150 MW/MTU BLRWP TO EOC F(R NWtTH AM UNIT 2 CYCLE 7 1 i.20+42 l I l l i.00482 (-12, 100) (6 100) I / \\ = = f s i
- 8.00+01
/ \\ Unaccept able [ \\ E- \\-Operati,on - = / \\ ~ g,gg+gt / A4ceptable \\ -.i S 3 / o,..u -3 (-27i 50) .(20; 50) 4,gg,g3 ~= w .U 2.00+8, o.se+es -i.....i -3...+.i . i... i i...+,i 3...+,i 3.4,+,, PERCENTFLUIDIFFERENCE(DELTA-1)
- v+'e-
-}}