ML20198C417
| ML20198C417 | |
| Person / Time | |
|---|---|
| Site: | Vermont Yankee, Yankee Rowe, Maine Yankee, 05000000 |
| Issue date: | 11/05/1985 |
| From: | Papanic G YANKEE ATOMIC ELECTRIC CO. |
| To: | Zwolinski J Office of Nuclear Reactor Regulation |
| References | |
| FYR-85-127, NUDOCS 8511120086 | |
| Download: ML20198C417 (7) | |
Text
P YANKEE ATOMIC ELECTRIC COMPANY we*one (6 ") a' -s '"
THOC 710 380-7619 I'~
7
>. y 2.C.2.1 m
i 1671 Worcester Road, Framinghant Massachusetts 01701
. - 22i_f.il j
FYR 85-127
,, (/.ist; lie, '
November 5, 1985 United States Nuclear Regulatory Commission Washington, DC 20555 Attention:-
Mr. John A. Zwolinski, Chief Operating Reactors Branch No. 5 Division of Licensing
References:
(a) License No. DPR-3 (Docket No. 50-29)
(b) License No. DPR-28 (Docket No. 50-271)
(c) License No. DPR-36 (Docket No. 50-309)
(d) USNRC Letter to YAEC and MYAPCO, dated May 11, 1984 (e) Topical Report:
"RELAPSYA - A Computer Program for Light Watte Reactor System Thermal-Hydraulic Analysis," Yankee Atomic Electric Company, YAEC-1300P, October 1982 (f) YAEC Letter to USNRC, dated November 1, 1985
Subject:
Additional Information on RELAPSYA
Dear Sir:
Reference (d) requested answers to 197 questions on YAEC's Topical Report on RELAPSYA [ Reference (e)]. Responses to the last 43 questions were provided to you as an attachment to Reference (f).
Figures VI.9-I to VI.9-9 belonging to Appendix A.VI.9 were inadvertently left out of the package. These figures are enclosed and should be placed after Page 47 of the attachment to Reference (f).
We apologize for the inconvenience and trust this information is satisfactory. However, if you have any questions, please contact us.
Very truly yours, YANKEE ATOMIC ELECTRIC COMPANY l
J^
George anic, Jr Senior Project Eng neer - Licensing Yankee Project GP/ba Enclosures 1851 1120 N st
e s
Type 11 steam generator Type il steam generator (intact loop)
(twoken loop)
~
Special Features:
- Instrumented SG Honeycome insulation e
Pipe heat tracing
- New core Pressurtzer Vessel tl lNI m
r Pump l
Hot leg a
k Hot leg %'u allp areak assembly Cold 109
.k by Pump suction b"O I
l
- Blowdownvetve e
2 I
Condensing coils M
Pump suction #g
,lp y'.
y Condensate measuring tanks v.es.idowneo e/lik neev u r tes Y
m.,a v
l Figure VI.9-1:
Isometric View of the Semiscale Mod-2A System
i 4
O C7 l
l
- Steam generator a
i l
1 Pressurl2er CleVesset top cap Hot leg
[
\\
ceia seg Pump replacement
_ y,,,,
spool Pump Downcomer - =-
suc tion --*=
i m n 4 e aos Figure VI.9-2:
Schematic of the Single-Loop Configuration
1 i
i l
Osov asa is EI J 884 p'see E
son ses i
j g-g ass ato y 3 -c-)
aos i
_ _A_
301 aoi "id#ast I
sat saa 104 sea,,,,,,
y-
,os C "w i.E l;-
see s er sis
-c
- V,..
%,,, y u t see n
e saa
[
so?
sis ses ses w
sto L s
me 884 sie r_ *T.,ief-~7 ess q _ s set m'
Figure VI.9-3:
RELAP5 Nodalization for S-NC-2
SSN02 - 30 KW - HOT LEG TEMP j
820.0 815.0 -
810.0 -
005.0 -
d 800.0-SN.0 -
500.0 -
g 586.0 -
+
Q.
500.0 -
g 575.0-Data g
f c.s 570.0 -
i kJ E Ej 'l
.0 -
RELAP5YA H
k.
500.0-555 o-
_ m.
550.0 -
w E
6
- ~ ~ E E %
545.0 -
t 540.0
- 50. 55. 00. 85. 70. 75.
00..
- 85. 90. 95. 100.
% INVENTORY Figure VI.9-4:
Comparison of RELAP5YA Calculated llot Leg Temperature with Data (30KW)
SSNC2 - 30 KW - PRINflRY PRESSURE 13.0 12.5 -
~
12.0 -
11.5 -
l l C
11.0 -
10.5 -
l 10.0-9.5 -
9.0 -
0.5 Data N
8.0 -
a sg 7.5 -
RELAP5YA
{
7.0 -
=Eg;.. -
8.5 -
a
=
5.5 -
5.0 50, 35. 00. 85. 70. 75. 80.
85.. 90. 95. 100.
% INVENTORY Figure VI.9-5:
Comparison of RELAPSYA Calculated Primary Pressure with Data (30KW)
SSNC2 - 30 KW - NASS PLOW 1.2 -
1.1 -
1.0 -
0.9 -
Data u
0.8 -
-(ng 0.7 -
M 0.8 -
0.5 -
0.4 E
u) 0.3 -
Em aI l en 8
g 0.2-g 0.1-0.0 E
RELAP5YA
-0.1 -
-0.2 -
o
-0.3 50 5$. Ob. 8$. 76. 76. ed. Ob. Sb. 9$. 100.
% INVENTORY Figure VI.9-6:
Comparison of RELAP5YA Calculated Mass Flow with Data (30 KW)
SSNC2 - 100KW - HOT LEG TEMP 820.0 815.0 -
810.0 -
805.0 -
m d
800.0 -
g 595.0-a 590.0-585.0 -
[
I
$80.0 -
575.0 -
570.0-RELAPSYA e
585.0 -
a H
Sr0.0 -
555.0 -
E 8
550.0 -
e a
a 545.0 -
5W.0
- 50. 55. 80. 8$. 76. 76. ed, gi, gf. Sh. 100.
% INVENTORY i
Figure VI.9-7:
Comparison of RELAPSYA Calculated
{
Hot Leg Temp. with Data (100 KW)
)
g l
i SSNC2 - 100KW - PRIMARY PRESSURE 13.0 i
12.5 -
12.0 -
11.5 -
11.0 -
10.5 -
10.0 -
E 9.5 -
d 9.0 -
s 8.5-g 8.0 -
g E
7.5 -
E 7.0 -
al O.
W-8.5 -
g a
e e
a 8.0 -
5.5 -
5.0
- 50. 4 5.
80.
- 85. 70. 75. 80. 85. 90. 95. 100.
% INVENTORY Figure VI.9-8:
Comparison of RELAPSYA Calculated Primary Pressure with Date (100 KW)
SSNC2 - IOOKW - NASS PLOW 1.2 i 1.1 -
1.0 -
0.9 -
0.8 -
-u) a g
0.7 -
M 0.8 -
o 8
0.5 -
6 0.4 -
E u) 0.3 -
V)
E g
0.2-o a
0.1 -
P o a
E E
0.0 -
l l
-0.1 -
-0.2 -
g l
-0.3
- 50. '55.
- 80. 85. 70. 75. 80. 85. 90. 95. 100.
% INVENTORY Figure VI.9-9:
Comparison of RELAP5YA Calculated Mass Flow wj'.h Data (100 KW)
I i
l i
--.