ML20205E265
| ML20205E265 | |
| Person / Time | |
|---|---|
| Site: | Calvert Cliffs  |
| Issue date: | 03/24/1987 |
| From: | Salyards L BALTIMORE GAS & ELECTRIC CO. |
| To: | Mcneill S Office of Nuclear Reactor Regulation |
| References | |
| NUDOCS 8703300583 | |
| Download: ML20205E265 (14) | |
Text
- ..
BALTIMORE GASAND ELECTRIC CHARLES CENTER. P.O. BOX 1475 BALTIMORE, MARYLAND 21203
~
NUCLEAR ENGINEERING SERVICES DEPARTMENT CALVERT CUFFS NUCLEAR POWER PLANT LUS8V. MARYLAND 20657 March 24,1987 U. S. Nuclear Regulatory Commission Washington, DC 20555 ATTENTION:
Mr. Scott A. McNeil, Project Manager PWR Project Directorate #8 Division of PWR Licensing-B
SUBJECT:
Calvert Cliffs Nuclear Power Plant Unit Nos.1 & 2; Docket Nos. 50-317 & 50-318 Containment Iodine Filter Efficiency
REFERENCE:
(a)
Letter from Mr. 3. A. Tiernan (BG&E), to Mr. A. C. Thadani (NRC),
dated October 17,1986, Request for Amendment Gentlemen:
This letter is in response to a verbal request for additional information regarding Reference (a). In Reference (a) we proposed to change the interval for performing certain containment lodine filter train Surveillance Requirements to support our future 24-month fuel cycles.
You recently requested further information concerning containment filter efficiency as a function of time. Attached are graphs of filter efficiency versus time for the containment lodine removal units at Calvert Cliffs. We will be contacting you to discuss this information in more detail.
Should you have further questions regarding our proposed change, we would be pleased to discuss them with you.
Very truly yours, 8703300583 870324 PDR ADOCK 05000317 PDR arry. Satyar s
p Principal Engineer Licensing and Operational Safety LES/SRC/ dim Attachments 0\\
h0
i i
'Mr. Scott A. McNeil March 24,1987 Page 2 cc:
'D. A. Brune, Esquire
. 3.~ E. Silberg, Esquire A. C. Thadani, NRC S. A. McNeil, NRC
- T. E. Murley, NRC T. Foley/D. A. Trimble, NRC T. Magette, DNR i
I 5
k
- - - -. -,, -, + -
,,, ~ - -,
6 8
g l
c l
l 1
t i6 in m
U u
m in ye i
rm i
M i
oT
)
t g S
si
)R+
n t
sU i a d O r
He aH n
p
,4s(
O u e gs hm o
V n
(T iT y
i c
g t n n
i e
t ai c a
ri er f
eE p
f pr O. r e
.e t
Oi l
t l
i F
F 1
P
,2 1
P N
0 C
C c
g l
O 1
0 9
8 7
6 5
4 0
0 9
9 9
9 9
9 1
1 n R v xE* EO eE
l CCNPP Operating History Unit 1
Filter Efficiency Vs Operating History 100 -
g
=
3 g
)
l b
99 -
n M
v
.s-x 98 -
Uc 3_
.2 O
w 97 -
u
~
u ee E
96 -
n n.
- g v-
+
95 -
l l
- .= -
~..
~
.c
&=,
y
~
~
r 94 I -
i i
i
,, if i
i ij i
i O
20 40
' 60,.
80' 100 j
Operating.' History (liONTHS) Minim'um'
~'/
+
/
/
/.
j
~~
O 11 Filter
~ ~~
4
_r er.
Q,.
+,
ug 'q
,t.
. I, p:.
~.
8
/
7 CCNPP Operating History Unit 1
7 Filter Efficiency Vs Operating Time 101" '
(4;M y
x, F
100 -
~-c 99 -
j_ _
n M
x 98 -
Uc e
- G El 97 -
t E
E 96 -
i 95 -
l l
J i
i 94 i
i i
i i
i O
2 4
6 8
(Thousands)
Operating Time (HOURS).
O 12 Filter
.+
Minimum
p1\\lllillli
)l1 I
i 1
s p "~
s
/ <
4 p.
e
~
2
=
f)
~
/.
[
0 f"
r0 1
7
_~
i 1
P.
t
~
0 i
i
+
8 n
m A
i 7
u m
9 a.
n yr i
i o
.M rt
+
s s
oi,;p.-
i 0 N
)-
S-H.
t H
sg m
l T+
n i
i t
6 O
a M
Hr e
l
(
p y
gO ro nV i
t s
s
~
i l
iH y
t c g
an~
n e
^
i ri t
~e i i 0 a
c f
4 r
f e-pE pr Oe W
r
~
t Ot e
l i
il F
F 2
P 1
P N
i 0 O
2 C
~ C i
a c
l 0
1 0
9 8
7 G
5 4
0 0
9 9
9 9
9 9
1 1
4
- 4
^ M v x*Ce.UgE syg i.
- - 1^
t f
,ll
- ,ll l
l
1 l
i'1lii lll ll.ljIlillilJ l
l i 8 1
i t
in m
U u
i 6 m
in ye i
rm M
oiT
)
t g S
si i
)R+
n t
sU i a d O Hr n
e O
l a (H p
su e gs hm o
V n
4 (T i T
y i
c g
t n n
i ai e t
c a
ri r
f e
eE l
p f
pr i
O r e
e t
t Oi l
l i
F F
P.
l 3
1 P
i 2 N
l O
C C
i e
l 0
1 0
9 8
7 6
5 4
0 0
9 9
9 9
9 9
1 1
m xoCe5tt e$E o
tlll,1l
i CCNPP Operating History Unit 1
Filter Efficiency Vs Operating History 101 100 -
3 N
O 99 -
n M
v x
98 -
u C*
s Ei 97 -
e E
96 -
95 -
l l
94 i
O 20 40 60 80 100 i
Operating History (MONTHS) 0 13 Filter
+
Minimum i
CCNPP Operating History Unit 2-Filter Efficiency Vs Operating Time 100 -
m 99 -
n M
v x
98 -
c
.e 5
O 97 -
ee E
96 -
95 -
94 i
0 2
4 6
8 (Thousands)
Operating Time (HOURS) 0 21 Filter
+
Minimum
CCNPP Operating History Unit 2 Filter Efficiency Vs' Operating History 101 100 - c 99 -
n M
v g
98 -
C 2
i e
5 97 -
a
.S E
96 -
95 - :
L 94 i
1 i
i i
i i
10 30 50 70 go Operating History (MONTHS) 0 21 Filter
+
Minimum Allowed i
CCNPP Operating History Unit 2 Filter Efficiency Vs Operating Time 101 100 -
a 99 -
m R
v x
98 -
u C
,e_
e O
97 -
1 e
E
~
96 -
i 1
95 -
l l
94 i
i i
i O
2 4-6 (Thousands).
.l Operating : Time (HOURS)
O 22 Filter
+-
Minimum
CCNPP. Operating History Unit 2 Filter Efficiency Vs Operating History 101 100 -
99 -
n it v
x 98 -
E
.s e
Ei 97 -
ee E
96 -
1 95 -
l l
l l
l l
l 1
94 i
i i
_i i
i i
i i
O 20 40 60 80 100 Operating. History (MONTHS) 3 D
22 Filter
+
Minimum Allowed
O i6 2
t in i
m U
u m
in ye iM r m i
oT
)
t g S
i4)R+
n si t sU ia
.d O' r
He aH n
p s(
O u e gs l
hm o
V i
T n
(T y
i i
g c
t n n
i e
t ai a
c ri r
f e
eE l
p f
O pr r
e e
t Oi l
t l
i 2
F i
F l
3 P
2 P
l N
D C.
C i
l l
O 1
0 9
8 7
6 5
4 0
0 9
9 9
9 9
9 1
1 n M v gE-E1 eeE 0
- lilll,
,1l llll 00 l
1 l
I 0
2 l
i 8 t
in l
i U
dew y
o yo l
r l
rt l
A s
0 oi i 6
)m S
H t
Hu sg Tm n
Ni i t On i
i a
Hr l
M(M ep i
y gO r
o s
t+
nV s
i i
H y
t l
0 g
c an i 4 n
e i
ri t
c a
ei l
er ff pE p
O r
Otle i
iF P
P r
N i 0 e
t 2
l iF C
32 C
l l
i 0
0 1
0 9
8 7
6 5
4 0
0 9
9 9
9 9
9 1
1 n i v xE2Ei erE t
- E llll llllll