ML19340A710
| ML19340A710 | |
| Person / Time | |
|---|---|
| Site: | Dresden  |
| Issue date: | 10/06/1966 |
| From: | Bower D COMMONWEALTH EDISON CO. |
| To: | |
| References | |
| NUDOCS 8009030717 | |
| Download: ML19340A710 (18) | |
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Octobar 6, 19 t,6
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Dr. Peter A. Morris, Director Division of Reactor Licensing 1
U. S. Atomic Energy Commission
~
'f ashington, D. C.
20545
Subject:
Request for Amendment of Operating License DPR-2, as amended, Dresden Nuclear Power Station, including Exhibit I
Dear Dr. Morris:
Pursuant to 10 CFR 50.59 and Paragraph 3.a.(4) of License DPR-2, as amended ("DPR-2"), Commonwealth Edison Company reques ts that Appendix "A" of DPR-2 be amended to allow the operation of a modified fuel des 1 n, designated Type V fuel, in the Dresden reactor.
2 The amendments proposed are as follows:
Amendment No. 1 Amend iton "2.
Nuclear Core" of Section "3 DESIGN FEATURES" of Appenuix "A" to DPR-2 to road in its entirety:
"2 Nuclear Core
[,fil.' I. ],
Maximum active fuel length - cold 112 in,
" Maximum core diameter (circumscribed circle) 129 in.
6'y
\\3 Type I 166 s
Maximum number of fuel assemblies by types:
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Type III 192 d
'd..'
pg Type III-F 104
- , Lid s g i Type V 106
%e. r,,,,,27 Type PF-10 1
s b'Dr,.g.7/#
8 Type SA-1 1
/s'I.
4 qu / n
'\\ ip Ma),imum total number of fuel assemblies 438 "The reactor may be operated at any power up to and including rated power with any configuration of the various types of fuel assemblies installed, provided the maximum number is within the limits specified above."
Jock)D n.
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El IlML
4 Dr. Peter A. Morris October 6, 1966 Amendment No. 2 Amend item "3.
Determination of Maximum 9eactor Power" of Section "D.
F O 'T.1 diW AT I O.N" of Appendix "A"
to DPR-2 to read in its entirety:
"3.
Determination of Maximus Reactor Power The rated power of the reactor shall be linited to a maximum steady state value of 700 ml(t).
"The maximum allowabic steady state heat flux limits expressed in units of 3tu/(hr)(ft2) shall never exceed the following values:
Fuel Type I 350,000 Fuel Type III 360,000 Fuel Type III-F 390,000 Fuel Type V 360,000 Fuel Type PF-10 510,000 Fuel Type SA-1 425,000 "The reactor shall be operated within the above limits such that a minimum burnout ratio of at least 1.3, evalu-ated at 125 percent of rated power, will be maintained in each type of fuel closest to burnout in the hottest channel in the core based on a uniform steam quality over the cross section of the channel.
This burnout ratio shall be based upon the correlation in Edison's
" Recommended Curves of 3urnout Limit for Design and Operation of Soiling if ater Reactors", dated January 3, 1962.
The reactor shall be operated always well within the bounds of stability, as evidenced by the operation itself and any experiemental data produced."
Amendment No. 3 Amend Appendix "A" to D.PR-2 by deleting TA3LE II (revised 3/16/65) attached thereto and substituting Table II (revised 3/25/66) attached herewith.
Pursuant to 10 CFR 50.59 and 3.2.(4) of DPR-2, a Description and llazards Evaluation Report in support of the proposed amendments to Appendix " A" is attached hereto as "EXIII3IT I".
In our opinion the proposed cnanges shall not result in hazards which are greater than or different from, those analyzed in the !!azards Summary Report, specifically there is (1) no increase in the probability of, or (2) no increase in the possible consequ.nces of, or (3) the creation of a credible probability of an accident different from, those accidents QD
' 9 M'
T ]u 6 Jud. A Uh D
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Dr. Peter A. Morris October 6, 1966 previously analyzed la the ilasards Jumnary Report as amended or in connection with amendments to License DPR-2.
Very truly yours, COMMONNEALT!! EDISON CO'fPANY D.
R.
3ower Treasurer Attachments:
Table II Exhibit I S!13SCRI3ED and NORN to befo [re me,this 4 M day of
,tD&._
1966.
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o TABIE II (Revised @ 5/66 Cladding Reenlar Rods Special Corner Rods
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Wall 0.D.
Thickness Rod Number
% Fuel
% U02 Fuel Number
% Fuel
% Uo Fuel 2
Fuel Type tdaterial._
(inches)
(incheal Confiriration Reciu_Jred Cenposition Jjnrichment Dismeter Remtired ComTgl.t.irArL_prJr_hrg;n.t _lismeter I
Zr-2 0 567 0.030 6x6 36 100 UOp 15 0.4%
6x6 31 ryL85 Uoe 99.85 00 III Zr-2 0 555 0.035(1) 2 0.055 0.15 Er204 1.03 0.470 5
0.15 Ernoi 1.83 0.438 29 100 U02 2 3fe O. 82 III-F Tr-2 0.5625 0.035 6 x(>
1(2) 95.3 Al 023 0.h(35 6
100 002 1 77 0.h82 4.7 Gd 01 2
III-F
.)
100 UOn 2 34 0.482
+
(Special Poison) 7x-2 0 5625 0.035 6x6 6
100 Uo2 1*77 U.bO2 B0d")
1 (Gpecint test rods - see Note (4) 28 100 Uce 2 34 0.4925 III-F 7r-2 0 5625 0.035 6x6 1(2) 95 3 Al 023 0.465 6
100 uo 1 77 o.fm5 g
(Pc.vder )
4.7 Gd 03 2
I3) 100 UG>
2.34 0.482 I
v Zr-2 0 5625 0.035 6x6 30
- ee note (5) 2 34 0.482 6
100 U03 1 77 o.482 (6) 0.i 90 6
100 Uo V
Zr-2 0.5625 0.006 6x6 30 ke note (5) 2 34 2
1.77
- 0. 4'fl 4
n in Cind FF-lO Zr 4 0.412 0.025 8x8 51 ef).65 UCb 2.O' O.358 9
99.65 UO2 15 o.358 0 35 Er,03 o.35 Erpoi l0375 OA-1 Zr-2 0.1424 0.022 7x7 i
25 100 Uo?
3.0-3 5 0.375 24 100 von 2.76 (1) Five corner rods (2) Poison rod - relletized (3) Cpacer capture rod - relletized (4) G1x nonemblics will be londad with one of the following types of negmented burrable poison test rods:
Ide-trication It! = 97% Al 02 3 - 3.0% cd 02 3, 0.h65 inch O.D.,
2 3 - 7.1% Gd 0, 0.M5 inch O.D.; IM = 'f3.9% U02 - 1.1% Gd 02 3,177% enriched, 0.482 inch 0.D.,
DX = 97 3% UCp - 2 77 Gd 0,1.77% enriched, IV - 72 9% A1 0 23 23 s.
v O.h80 inch 0.D.
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FIGURE I DRESDEN TYPE Y M
W D
L
Ismtcr :.'IIZAR PC*aT2 STATION CYCLE 5 1CA0ET, 25 1
5 1
5 1
5 1
5 20 3
1 3
3 3f 3
3f 3
3 3r 1
1 23 1
1 3r 3
3r 3
3 3
3 3r 5
3 1
1 1
10 p_.
22 1
3 5
X 1
3 15 3
5 3r 5
3 8 3
5 3t 5
3 1
r -- - ' - - 'A A - ' ' ' ' '7 21 1
3 3
3 3
i3 3
3 3
3 3
3 3
3 3i 3
3 3
3*
9 p.
20 1
5 3r 5
13r 5
3r 5
3f 5
3f 5
3r 5
3f 5l 3r 5
1 1
39 1
3r 1
3 3
5 3
3 3
3 3
3 3
3 3
1 3
3 3
3 5
1 8
7 I8 1
5 3r h 3r 5
3r 3
3f 5
3f 5
3f 5
3r 5
3f 5
3r 5l 1
3r 1
a l
g 17 1
3 3
3 :13 3
3 3
3 3
3 3
3 3
3 3
3 3
3 3i 3
3 3
1 7 _.
Xl,!5 16 5
3 3fll5 3f 5
3f 5
3f 5
3f 5
3f 5
3f 5
3f 5
3f 5
3 5
15 1
3r 3
3r 3
3 3
3 3
3 3
3 3
3 3
3 3
3 3
3 3
'3 3
1 6-34 5
3 3l5 3r 5
3f 5
3f 5
3r 5
3f 5
3r 5
3f 5
3r 5
3r l5 3r 5
a 3l3 13 1
3t 38 3
3 3
3 3
3 3
3 3
3 3
3 3
3 3
3 83 3
1 9-i 12 5
3 3f l 5
3r 5
3r 5
3r 5
3f 5
3r 5
2f 5
3f 5
3f 5
3r 15 3r 5
II 1
3 SA-1
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3 3
3 3
3 3f 3
3 3
3 3
3 3
3r 3
3
.1-.3 1
1 4_
10 5
3r 3r 5 3r 5
3f 5
3 5
3r 5
3r 5
3f 5
3 5
3r 5!
3r 5
3r 3
09 1
3 1 3 3
3 3
3 3
3 3
3 3r 3
3 3
3 3
3 3
1 1
3 J
08 1
3f 5
3f l5 3f 5
3r 5
3r 5
3 5
3r 5
3r 5
yI 5
1 5
1 pL_..
__J e
OF 1
1 3
3 3
5 3
3 3
3 3
3 PFC 3
3' 3
3 3
1 1
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3r 5
3r ' 5 3f 3
3r 5
3f 5
3r 5
3f '
5 3r 5
3r 5
e i
I 3'
05 1
jf 1
3 3f 3 3 3
3 3
3 3
3 3
3 3
1 1
i 04 1
5 1
5 3f 5
3f 5
3f 5
3r 5
1 5
1 03 1
1 3
3f 3
3r 3
3r 3
3r 1
1 02 3
1 5
1 5
1 5
1 l
l A
B C
D E
F G
H J
K 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 1 ! ICAS n?E I
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?!OL"RE 2
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TABLE 1 LIMITI'iG MODERATOR REACTIVITY COEFFICIEITS DURING CYCLE FIVE (END-OF-CYCLE 5)
TE'9ERATURE COEFFICIE'IT Temperature Coefficient
_Molerator Temperature (*F) 1/k dk/d? (1/*F) 68
+5.2 x 10-5 h20 0.0 Sh6 h.8 x 10~5 VOID COEFFICIEiT Void Fraction Moderator Void Coefficient (Interior to Flow Cnannel)
Temo. ('F) 1/k dk/5 Void 0
68
-1.3 x 10~
10 68
-2.0 x 10~
t e
-=
TABIE 2 ACCE24BLY AVERAGE IATR 1CE IATA UNIRIMDIATED TYPE 1, III, III-F AND V ktJEL V
V Pael Type I
I I
III III 177 III-F TII-F III-F ChP-$(1) GRP-5 GRP-5 GRP-1(2) GRP-1 GHP-1 Temperature (OF) 68 546 546 68 546 546 68 546 546 68 51.6 546 (B
$46 5%
Uoid tYaetion O
O O.00 0
0 0.20 0
0 0.20 0
0
.25 0
0
.J5 (Within F1ow Chtunne1) k, thacontrolled 1.132 1.151 1.145 1.154 1.160 1.150 1.210 1.201 1.197 1.125 1.0)j 1.063 1.191 1.172 1.154 k,, Controlled 0 946 0.684 0.8 52 0 970 0 904 0.873 1.00) 0.927 0.9T O.967 0.905 0.645 1.024 0.974 0.917 Control Worth (t* ts) 0.164 0.232 0.256 0.15) 0.221 0.241 0.166 0.232 0.246 0. 11.0 0.172 0.206 0.11.0 0.169 0.2W M
(ca )
39.8 63.5 75.4 38.8 61 9 74.1 39.0 61 7 77 0 36.6 60.8 72.0 40.6 61.8 76.0 Durnable Poison Worth 0.048 0.055 0.131 0.000 (t*/k)
(1) TYPE V GROUP-5 Defines the reload fuel with the greatest Gd 023 1 ceding.
(2) TYPE V Ggoup-l Defines the reload fuel with the least Gd 023 loading.
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MEMO:
REPORT:
OTHER:
3 k
TOs ORIG.s CC; OTH ER :
[
llorris x
2 19 m f d '78-I ACTION NECESS ARY XX CONCURRENCE C! DATE ANSWERED:
NO ACTION NECESSARY C COMMENT C
BYt l
CLA SSIFICATION :
POST OFFICE FILE CODE:
/
l g
R Eo. No.,
DOCKIT 50-10V
)
c ESC RIPTIO N :
( Must BE UsecuB8W'ED S REFERRED TO l DATE i RECEIVED my l DATE k
Ltr. :wquesting changs in Apperdix A of 'ic DP3-2 *o allow the operstica of 2
W'2
.x:x11ried fuel desif;2, desi ted Type 7 w/all exures 1-CR.CfICri i
h-(:xm.m 10-6-46 I
l ENCLOSURES:
Dr. Morris ly> /ir.fo cy) i Table II l
Exhibit I (22 each) l l
t
/
" ' " ^ " " * '
i Distribution:
1 - fo.:nal filef i
l 1-filev i
I shy l
l t-W'FNe/L.n u /:lD n B" i
1 "U
S. ATOMIC ENERGY COMM[SSiON MAIL CONTROL FORM rn m.ms ams I
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