ML20085G970

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Monthly Operating Rept for Aug 1968 for Saxton Nuclear Experimental Corp
ML20085G970
Person / Time
Site: Saxton File:GPU Nuclear icon.png
Issue date: 08/31/1968
From:
SAXTON NUCLEAR EXPERIMENTAL CORP.
To:
Shared Package
ML20083L048 List: ... further results
References
FOIA-91-17 NUDOCS 9110280093
Download: ML20085G970 (8)
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O/.JJO:: !!UC::J.7 d::P"'iI:2T.sL C0r'TOLTIq 0,eratienc Re, ort for /.umet 1969

1. .U.C m < 0? L.?LIS

/.t t!.c bocinning of thic report period the reactor uno in a cold chutdoun condition for toct subacce22y inspections. JCubasoc;..bly inspections ucre cour.leted on Augast 6. Pilling and venting of the :..ain coolant cyctea coc.onced on i.unuct 7 and was completed on Auguct C. The recctor uno taken critical on Aucust 9 and locded to 22.4 IL.'t. This pcuer was maintained until Au;uct 11 unca the recctor tripped due to an accidental contact uith the nanual cera; button. Le reactor uas naintained in hot shutdo'.m until August 13 -Qcn it usc ta':en critical a ic loaded to 22.6 II.!t. On Aucuct 19 the reactor power vac increaced to 25.61:lt. The reactor pouer uas naintained at 25.6 I?.lt until shutdoun on Aucuct 23. Daring the period August 24 to Auguct 31 the reacter uns

.r;aintr.innd in a hot shutdo m condition for training start-upc and AEC operator >

c:n: .inationc. Tuo S;:EC cnployces and ten Ucsting'iouse custccler trainees ucro cnaained by the AEC for operator licenses and certifiention. During the uonth ten operator training start-upo ucro conducted.

2. ' :P ?r2fA1 P20T.A':

Ph:.se B of the overpouer test on the tect subassembly installed under chan;.:e request 131 was completed. This phase of the test was conducted in tuo etcpc. In the first step, the reactor uas operated for six days at 22.61.'.!t to siuulato full power cteady stato conditions in the cubassembly. In the cocond step, a 12.53 ctep increase in reactor power to 25.6 li.it was made to cienlate overpouer conditions in the subacccably. The subassc21y operated for five days un ter thece conditions. The peak linear poucr measured in the subacae:..bly was237hu/ft. Reactor coolant uas monitored for fuel failure during the test acin; the c= peri:aental failed fuel detection systeus and chemical ana4ses.

..one ucre detected.

Tuo :.irect readout continuous boron anabZero ucre inctalled and cal'brated during the nonth. One boron analyzer operate on the neutron abcorptica ; rinciple and the other on the conductivity of boric acid using -

uannitol a a couplexing agcat.

Tcc core cubascaably status as of August remins the sane as the Juno report.

3. OPZTICIAL TES The radiation nonitorin; syctea circuits were tested on August 2.

- A nc:nal test of the safety injection system uac conducted on Aucuct 15.

9110280093 910424 PDR FOIA-DEKOK91-17 PDR

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S'.;EC Operations 2c;oct for Aurnict 1960 ,,,,, 72 Operational Teste (continued)

The 5:J.;C fire and evacuation alams ucre tested on kagust 2, 9,16, 23 and 30.

Control rod ceran circuit response tine and rod drop tine tecto were conpleted on Aucust 29. The nininun rod drop time wac .762 seconds and the natran ms .910 cecm dt. The ninima automatic scran circuit response tine was

.040 seconde and the :x:irrxt uas .246 seconds.

A test of the pressuricer safety valve anti-ci:=er devices was conducted on August 28.

The nunber tuo turbine overspeed trip was tested on August 8. The trip was actuated at a turbine opcod of 1925 P2d.

4. ILir."C :.003 The principal itens of nechanical naintenance for the month included replacing the stuffing bon on nunber one charging pump, number 3 cylinder; uciding the universal joint to the drivo shaft on the containnent vessel rotary cranc; installing a neu gasket on the containment vosoc1 equi raent I acccca door; replacing the rocin in the otorage ucll systen denincralicer; reaoving the tenperature control valve on the centrol rod roon air handler for repairs; inctulling a yard area cump pump and piping to the smrer for rain water; installing nmt rupture dices on the caustic pump and cpent_ recin storage tanh number three; connecting the drain lines for the experimental boron analyzers to the wacto dispocal phnt; replacing a saran lined toe in the druto acid line in the n2ho-up purification cycten; painting the chemistr/ laboratory; preparing the reacter vessel head for operation; and welding a fitting on the overpower test subanscubly pitot tubc.

The major itens of c1cetrical and instrument maintenance included repairing the chenistr/ labontor/ spectrophotometer; calibrating the staplex cir scaplers; installing a 120V receptacle in site particulate konitor, RIC-8, cabinct; replacing cables and seals on power range channel B nuclear detector; installing a neu pressure gauge on the storage well pump discharge; replacing the strip heater in the instrument air dr/cr tower; calibration of the nain steam and feedwater flow to 140,000 lbs. per hour; replacing a controller in the letdown flow control circuit; replacing a transfomer in the control circuit.

for the pressuricer heater fm; installing new potentio:acters in the intemodiate range channel A log nicreannoter; rephcing the intemediate range channel B nuclear detector; replacing torer range channel B nuclear detector;-installing filter paper in cite particulate monitor, RIC-9; replacing the transfomer in the control circuit for the E."vP t <haust fan; instnlHng a new flood light near the discharge tunnel; installing new G-U tubes in the instrument shop and EIDF labitrons; installing a new fan notor in the office air conditioner; installing a e

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5:30 Operations ?.cport for A" m n t 196c ._ . , . _.

__ //3 l':.intu nec (cenLi.nued) new gear train on t:10 start-up range recorder; replacing the charging pump diccharge preonure cauges; cleaning and repairing the EDF hotuell colenoid valve; repairing the KDF sump pump controller; installing neu vanco in site particulate nonitor, RIC-C, vacuum pu ap and the chcaictry laboratory alpha monitor vacuum pump; installing a neu air conditioner in the counting roa"1; repairing the gamma opcetrometer; ncasuring the control rod drop tinos and procecs instrumentation scrcc.. recpo..cc tiues; and tecting the containnent vessel vacuun breakers.

f. CHH:ISTP.Y The main coolant system che.tistr/' uas being naintained .for cold chutdwn conditions at the beginning of the month. Hydracine was added on Aumat 6 to reduce Lho o::y;;cn concentratior in preparation for heat-up. On Auguct C, hydrogen was added and the boron ca. luted in preparation for start-up of t:10 sccendary cycten. lithium was added to raise the pH as part of the pH vercuc t:1e gnocouc diffucion test and to operate at a high pH during the overpouer trancient test. Chenistry specificationc ucre maintained for power operation until chutdoun of the secondary systcn on August 23. Hot shutdown conditionc ucre maintained for the rc:ainder of the month during the operator trainint;. Iodine analysic ucre made daily from Auguct 14 to Auguct 23 for the detection of failed fuel durin" the overpower tect. Iodino 131 levels ranged froa 5 76 = 10-2 to 1.13 x 10-1 ue/cc and I-133 from 3.24 x 10-2 to 5.95 x 10-2 ue/ce.

L A curary of analysis perfonaed on the main coolant scuple*: ic contained l

in the following table:

l Ihin Coolant Systs1 IIinimum Lucimum pH at 25 C 5.52 7.17 Conductivity, umhos 3 49 23.7 Foron, ppm 345 1756 I Chloridea, ppm 4 0.005 < 0.005 C W gen,' ppm 0.010 0.050 Hydrogen, cc/cg H60 at STP 12. - 28 Crosa Beta Gama 115 Ein. Degassed) ue/cc 1.13x10-2 8.12x10-1 Tritium,ue/cc 1.63x10 2 7 13x10-2 Crud -(onc detensination), ppb 115 ,

l I-131,uc/cc 5.76x10-4 1.13x10-1

! I-133,ue/cc _3 24x10-2 5.95x10-2 Lithium, p;ra 0.05 1.47 c

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Analysco perfox.cd on primrr/ mahc-up unter on August 5 choucd chlorides to be less than 0.005 p;n, discolved o::ygen to be 1cco than 0.005 p:n err silica to be 0.004 pga, l'eu recina ucrc inctt.lled in the storage vell dcr.ineralicer on August 6.

Stena concrator chlorides rcnained ucll within specifications c::copt for brief periods after start-up of the accondar/ c: stan on August 9 and Auguct 13.

The average activity of the steam generator ranained less than lx10-0 uc/ce.

6.  :?!.DIJ.Tm: A:TJ :!S?", DISPOSAL Cadiation curvoying concisted of routine plant surveys, C.V. during chutdoun auf materialc shipmentc. The follouing ma::iraum radiation readings ucre t::. hen:

Iocation P.adiation Readine OLA Zuildinq

'.!act.c Dru- (baling machine) 0.75 nrcm/hr beta-gr.mna Charging Pump (contact uith chauber) 1.6 mren/hr beta-cam a Smaple Room (door of cample pancl) 1.0 mre hr beta-ga:raa Chemical lab Hot Sinh (l" from drain) 5.0 nrca hr bota-graan Z."uF Evaporater(underbottau) 26 mrea/hr beta-g=.0 Tvaporator (contact outside upper level) 10 mraa/hr beta-gema Drum Storage Area (at HRA fence) 7.0 mren/hr beta-;rra C.V.

Primarf Compartment (general upper level) 50 mrom/hr beta-ga: aa -

Primarf Compartment (contact 11.C. 440mram/hrbeta-gc=aa Primaq Compartment (S.G. botton) pump volute) -190 mran r beta-sc:na Prdnarf Campartment( i bottcn) 130 mren hr beta-c=2 -

, Primary Campartment (pressur zergeneral louer level) 70 mram hr bota-gr= a

-500 mrea/hr beta-ga::a Primary Comprrtment (Regen. IC;)

60 cren/hr beta-ga=aa Primary Equipraent Aw:iliar/ Campartment Compt. (Non-Regen. (S.C.H.X. HK) ) 8 mrem /hr beta-;c=aa i

Aw:iliary L,uipment Ca:pt. (D.T. top) 110 mrem /hr beta-gn=aa :

j. Auxiliar;r Equipment Compt. (D.T. botto:a) 8 mren/hr beta-ga:=a s

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S.' C Opr.tienc Ze ort for Au met 1C6C . . . '. . . J5

@f 4 c:; , , Me Zie,ocal (continued)

Incution Paddntion Read 4.n?

C.V. (continued) auniliary 12 1uipment Compt. (general louer level) 3 mrcn/hr beta-gc:::.a 3eactor Dcch (uator 1cvel at grating) 10 nrem/hr beta-gam.a acactor Ucch (instrxacnt parts) 170 mrem /hr beta-ga::na 2cartor 1>ech (vaict level) 10 nrc:a/hr beta-ga: :.a 2cactor Doch (storage well railing) 10 mrem /hr beta-ga.:=

Coatcr..ination surveying consisted of routine plant site surveys, surveys of n2terinis chipped, tools, equipment and C.V. during shutdown. The clean areas ucre ult!dn the " Clean Area" limits. The controlled arcs. tra generally within the "C1can Arca" 11::.$ tc. The controlled area wac cleaned frequently tc keep and/or to return it to the " Clean /.rca" limits. The exclusion arce.s were cleaned periodically to rinird ue the caount of cac2.rable contamination. The following contardnation levelo : ore observed:

Incation Contamination Readin; CX. guildin-

':hr r;;ing Pump Ch=aber 3610 d sacar beta-g r a Charging Pump Chcuber 4 10 d smear alpha Char;ing Room Floor 4340 d /cmearbeta-gcmc.a St.. ple 2 .n Sink 12330 d / smear beta-gr.:na Suple Roca Sink <.10 d smear alpha Sacuc nosa Floor 130 d .sucar beta-gn=4 Checical Inb Hot Sinh 5930 d t/s'aear beta-genaa Che...ical Lab !!ot Sink < 10 d cacar alpha R..UF Pump Roam Floor 351 d/m/cmear beta-gerna Shipping Room Floor 248d/m/smearbeta-gn=:.0 C.V.

Operating Deck 6980 d/m/ smear beta-gacia 0; crating Deck < 10 d s car alpha Reactor Deck (hcad) 21820 d cmear beta-garna Reacter Doch (head) ( 10 d /cmear alpha 2eactor Dech (grating) 36000d/m/smearbeta-ca=.2 Reactor Dech (gratirq) < 10 d sacar alpha Primary Ca part aent (grating) 1910 d / smear bota-gt.:na Pri cry Caapartment (grating) (10 d /smearalpha I

0;. .C Opernts.-nu ::c? ort for au ..~__,3.,_.

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w't. tion c../ .
acLe Jicnocal (continued) ,

Liquid and caccouc efflut.nto from the 3;:20 cito for the conth of -

Aucuct 1960 ucre as follous (Curic) (Curic) (Curie)

C luent Activity Activity Activity T:mo This Month Year to Date Inst 'I\:elve 1:onths li.uid 0.001C28 0.006210 0.013434 Tritiin 0.253500 5.481087 6.936611 -

Air, %c 0.253420 16.310721 26.124466 air, I-131 0.000000 0.000351 0.001999 Air, 1: . F.P . 0.002534 0.163107 0.261244 Ten (10) barrels of unste were drxamed for tempora q storage. lio dre.c ucro chip,3ed frr, the cito.

.T.diation c:posuru for all S;!EC perconnel as censured by fiba badges fer the *unth of Jul: ,1960, vere a ma:cimum of 200 nrcn uith an average of 24.4 nram.

.tdaation c::posure for all visiting personnel as neasured by fiha badges

."or the "onth of July,1960, ucro a ma:dmun of 230 mrera uith an average of 4.5 nrc ..

The average radic. tion c:posure for all personnel ac teasured b; film

, bat;;cc ;cr tM .. cath of Juk.',1965, uns 16.18 nrc=.

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SAXT0tl NUCLEAR EXPERIMENTAL CORPORATION OPERATING STATISTICS AUGUST YEAR 1968 MONTH _

UNIT @ NTH YEAR TO DATE NUCLEAR TIMES CRITICAL NO. 25 201 743 HOURS CRITICAL HRS. 312.11 1,699 19 22,272.19 NO. 7 91 423 TIMES SCR/MED (MANUAL)

NO. 1 8 39

  • TIMES !)CRA!MED (INADVERTANT)

WH 6,797.67 38,033 80 416,003 73 THERMAL P0 DER GENERATION AVERAGE DURNUP (PuRegion) WD/MTU .554.87 3,104.58 16,938.81 0 MWt CONTROL ROD POSITIONS AT D1D OF HONTH AT B'lUILIBRIUM PCWER OF -

MAIN C001 ANT DORON 397 PPH hy& '

NO. 1 O No. 2 10 NO. 3 0 0 NO. 5 10 NO. 6 0 NO. 4 ELECTRICAL UNIT HONTH M TO DA_TE GROSS GENERATION HWH 1,117 0 6,785.0 70,061.5 STATION SERVICE WH 271.75 2,209.40 u ,425.30 STATION SERVICE  % 24.43 -32 56 20.59 AVG. PIANT EFFICIDICY - WH(o)/WH(t)  % 16.43 17.84 16.84 AVG. GENERATION RUNNING ( 281.6 ilRS) pl 3,966.6 4,445.5 3,449.6 PIANT IAAD FACTOR -

% 33 36 18.39 19,87 (AVG. GEN. FOR-MONTH / MAX. IDAD)

AUXILIA lY STFAM SUPPLY - NUCLEAR STEAM SUPPLIED Fl REACTOR HRS. 283.4 1,570.02 18.721.11 HRS. 185.6 541.61 7,100.01 RWDF EVAPORATOR OPERATION

  • pa gars: Aura:t 11 - Reactor cer=. due 4 o operator accidentally banire ser=

button while cleanirc console

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