ML19351E354
| ML19351E354 | |
| Person / Time | |
|---|---|
| Site: | Yankee Rowe |
| Issue date: | 04/17/1969 |
| From: | YANKEE ATOMIC ELECTRIC CO. |
| To: | |
| Shared Package | |
| ML19351E353 | List: |
| References | |
| NUDOCS 8011280161 | |
| Download: ML19351E354 (7) | |
Text
/
n-k O
O d
YANKEE hilCLlilR JUh1R SfATION OPER\\ TION lEIORT NO. 99 For the Month of March 1969
. ~.
L g
((
h L2 o-N
, e t hh!,,,
] P(ikh ED
./
a a
l v].
APR211969* p e
b if}
- QE* u
\\
d
's/
soww1
//
,. /
rd '*
'/
_ > ;;/
Submitted by YANK 11 ATGIIC ELECTRIC CGIl%NY Boston Massachusetts April 17, 1969 i t./
- s. naso /(t(
75
i O
O l
l This report coverc the cperation of the Yankee Atcrac l'lectric l
Ccapany plant at Ecue, Mucachacette for the tenth of March, 1969 i
At the beginning of the period, plant load wac 166.0 !&e.
On March 2, the plant was chutdown to a hot standby conditicn I
to allow reactor demonctrative testing of reactor operator liccnse l
i I
cEntidates.
4 l
Rod Centrol Grcup "A" became fully withdrawn on March h und i
ur.monia vac added to the cysten to extend the full power capability of l
the plant.
The end of full power operation occurred cn March 13; however.
I a core burnup " flat spot" resulted in escentially full power operation until March 21.
The total reactivity ga,in resulting from operation with arcno n i at e ci ecolant chemistry was u.35% sh.
Core ctretch-cut creraticn I
connanced und at the end of the pariod," plant load wac 179 5 Mie.
'irculating water inlet temperature fluctuated between 360F and 330F.
4 All rout;ne tests were cctpleted, succecsfully.
1 l
The seventh Core VII air charge to the vapor centriner was nd on M'trch 11 - 12.
Air leakage frcm t he 'rapor container has been normal during the urr
.t Sui eillance period.
I i
. n+
Abnornal Cecurrorre; i
j There see re ne plant utncreal occurrences during the tenth of N.r e n, 19 u,.
E!unt lead Peductiam Maren 26 (llLU - 1215 lead reduction to 90 M4e; condenser tube i
leak check.
Plant Ehutacuna Chutdown Uo, 9d-7-9:
3 /1/69, scheduled hot standby shutdown; react or operator licensing examinations,
Shutdown duration:
10 hours1.157407e-4 days <br />0.00278 hours <br />1.653439e-5 weeks <br />3.805e-6 months <br /> 56 minutes.
i Flant Maintenance The foll yvin,j is a llSt of pertinent raintenance items l
perforned by the plant staff during the ncnth of March, 1969-1.
The 10. 3 charging punp wac dirmantled to permit repair of t he cross-head rtubc.
'unbe: cne plunger on this pump was repack d.
Fabrication of a ra^.k for storing control rod drivc coil stack nousings c.
}
and precaure houcing thield tubec
%, started.
O O
I
' 4 The wacte dispccal och dewatering cump-pu p was replaced.
I h.
A wate: level ccuge van arstalled in the spent fuel pit.
I 1
6 The weat mai:. ccn'ienaer wac checked for tube leaks during the March 26 1 cad re luct ion period. Three tubes were plugged.
i Instrumentation uni Centrol The follcwing ic a liat of pertinent inctrumentation and control maintenance it ens perforce.1 by the plant staff during the month of March, 19h9 I
1.
The waste cac head >>r instranentation and controls were recalibrated.
.: stallat icn of cond : t for the IYce detection systen was started.
heart or Plan I e rfer w; y_
The fcilowins paraneters were determined by means of incore inst rument at ic r J
i j
" S 6. 9 it ; ST. W F T uv g ; C c nt r o l 110,1 G rcup A, B, C, D @
j 90 3/0"; O p,r. brrcn.
F;-
=
+
1 1.7 l
y,.;
=
mt.
3.0 Mininus D.:31'
=
577.0%
' Tax imum cu+ 1et *. nperat ure
=
'r ce nd ary :)1un+ rer tran.ce
?-iwater heLie r + erminal differences were as follows:
0 6.7 F ll.gcF I;c. 3 n
=
6.b"F Jo. 2
=
- o. 1
=
F j
l Tna cmndenaar performance was ac follows; I
0 P i.
Ge; 1 21" & 15.P. ; 59L 5 Mit ; 39 5 F C.W.
in, i
62.1%.
26.a0F; cleanlinees factor
=
T.T.D.
=
I l
Chenin+rv The plant ecnt:nura to operate with unadjucted pH main coolant henic+ ry t hrcugh ': arch Cn March 2, t k. ' primary coolant was anncniated which for the remainder of the period reaulteci in average pli and annonia values of
p (y
t
(
'J v
. 9 71 and le.s ppm, respectively.
The ma'n coolant average gross beta-gamma activity and crud levels were 8.99 x 10-2 uc/ml and 0.08 ppm, respectively.
The main coolant tritium specific activity averaged 1.29 uc/ml' during the month.
.r-The iodine - 131 specific activity was 1 99 x 10-5 ue/ml and.
the iodine 131/133 atomic ratio was 0.79, indicating the absence of sdetectable fuel defects.
8 A representative crud sample for the month, collect'ed on Mare b7, had the following radiochemical analyses: dpm/mg crud Cr-51 Mn-Sh,
Fe-59 e
6 6
6 5.37 x 10 1.64 x 10 1.86 x 10 Co-60
.Ag-110g Co-58' 6
X.
1.58 x 107 5.83 x 10 5 56 x 10
~7 A main coolant gas sample collected on March 18, had the following radiochemical analyses: uc/cc gas Xe-133 Xa-135 Ar h1 h.91 x 10-3 #
9 15 x 10-3 3 95 x 10-2 Health and Safety
/
Waste disposal liquid releases totaling 55,h70 gallons contained 0.087 me of gross bata-gemma activity and 190 58 curies of tritium. Gaseous releases during the period were 161.7 me of gross beta-gamma activity.and'..
58.1 me of tritium. Secondary plant water discharced totaled 520,910 gallons containing 0.h78 me of gross beta-gamma activity and 16.63 curies
.of tritium.
Radiation exposure doses for Yankee plant personnel, as' measured U
{
by film badge, for the mo' nth of March, 1969 were as follows:
~
l Average accumulated exposure dose:
82 mrem Maximum accumulated exposure dose:
430 mrem
~0perations_
Attached is a summary of plant operating statistics and a plot of daily average load'for the' month.of March,-1969 j
x.
.{
,{
j 4
Y.
,j'
- i b.
N -
tf.
g
,. ~,.
s
.c.
I.g ga s Ii g,h
~ U e
1 a,
YANKEE ATOMIC EIETHIC COMPANY DAILY AVERAGE IDAD for March 1969 200 -
O a
iE S
150 -
g M
a i
100 -
ts 40 50 -
e m
I W
i i
i i l i
i i
i i
i i
i i
i i
i e
i i
i i
i i
i i
5 10 15 20 25 30
~
YANKEE ATOMIC ELECTRIC COMPANY - OPERATING
SUMMARY
March 1969 ELECTRICAL MONTH YEAR TO DATE Gross Generation KWH 134,534,500 386,783,600 9,390,545.h00 l
Sta. Service (While Gen. Incl. Losses)
KWH 8,036,191 23,173,304 617,767,563 Net Output KWH 126,498,309 363,610,296 8,772,777,337 Station Service 5 97 5 99 6.58 l
Sta. Service (While Not Gen. Incl. Losses)
KWH T2,711 435,099 26,718,Th9 l
p Ave. Gen. For Month (744.00)
KW 180,826 V
Ave. Gen. Running (733.03)
KW 183,532 l
4 i
PLANT PERFORMANCE
{
Net Plant Efficiency 29 20 29 24 28.40 l
Net Plant Heat Rate btu /KWH 11,688 11,672 12,017 l
I Plant Capacity Factor 97 05 95 96 75 25 m
j Reactor Plant Availability 98.53 97 23 84.30 NUCLEAR MONTH CORE VII TOTAL I
Hours Critical HRS T35 98 T,857 95 62,965.37 j
Times Scrammed 0
2 57 f
Burnup i O Core Average MWD /FEU 873.71 9,251.62 j
l l
Region Average MWD /FEU 1
A (INNER) 951.005 9,671.329 27,525.60 B (MIDDLE) 1,023.676 10,838.718 20,826.15 4
C (OUTER) 696.381 T,hol.950 7,401 95 D (ZIRCALOY) 866.723 9,381.h58 9,381.46 l
i i
O O
YANKE E
- ROWE C ORE 37]E
~)
V A
B C
D E
F G
H J
K y
XXXX 2
3 XX XX./
,N XX XX 4
- <2 X RM XL4 e
X MM X
~
XX XX 7
X X
e
/XX XXN 4
XXXX g
REGIO N A
/
zc
!H n
......_,.