ML20085H338

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Monthly Operating Rept for Mar 1965 for Saxton Nuclear Experimental Corp
ML20085H338
Person / Time
Site: Saxton File:GPU Nuclear icon.png
Issue date: 03/31/1965
From:
SAXTON NUCLEAR EXPERIMENTAL CORP.
To:
Shared Package
ML20083L048 List: ... further results
References
FOIA-91-17 NUDOCS 9110280240
Download: ML20085H338 (5)
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.S.rca:: C::rE 'J.ERII"::TA1 CORP 0MTIO1 0-a-Mien brort for litch icM . /b*

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Tne scheduled plant outage which was began on Janutir/ 22, 1965 was cor.tinued throughout this report pericd.

Ine major work effort during the month continued to be directed toward the instt.11t.tio.; of thu supercritical technology test loop. I+/ the end of the month

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On March 24 the inner-most fuel rods of the center 9x9 fuel asser.bly were viewed by note.s of a borescope. Tne crad depssition was observed to be fairly tnich and unifo.~. along the axit.1 high flux region of the rods. Above and below this region, the- fuel rod surface ranged from a spotty deposition pattern to a fairly cicar chiny exice appearance. Tne crad deposition on circaloy clad rods extended '

t. few inches farther Gown on the rod tht.n that on the stainless steel clad rods.

Significant crud deposition was obt,orved on the perfort.ted RCC guide tube.

3. 0:NT*1:", TECTS Tne raditation monitoring system circuits were tested on March 19, 1965.

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Tne principl items of mechanical maintenance during the month ipefu d ft.brict. ting and installing a head tr.nk for flushing the E*DF evaporator level column; ir.t.tc.11 int; t, neu cuetion line en the ott.ch radiet.etive particulate sampler, RIC-11; repiring the rocf of the R'.lDF building; replacing the molding on E'DF drum shipping rocm door frcue; installing t. plunger that had been "Cermaloy" coated in the number three plunger of number cne charging pump; rebuilding the vacuum pump in radiation monitor syctem channel, RIC-8; machining and lapping the sealing surfaces of the main sten. large pressure reducing valve; processing four drums of radioactive RWDF evaporatcr bottoms; replacing the dit.phragms on three shut-off valves in the E'DF cas cystem; inctalling new five nicron filters in the purification system post filter; installing a new diaphragm in the vacuum regulating valve on RUDF gas compressor nueer one; installing a new mechanical seal on n'DF gas compressor number two; repairing a le &/ pressure fitting on the control cir line to the pressurizer spray valvet lapping seats and discs of two valves in the sampling system; painting the monitor tank drain line; and replacing belts on containment vessel exhaust air handler.

The major items of electrical maintenance included replacing the G.M tube on the portable area radiation monitor in the containment vessel; measuring the voltages on the cathodic protection system; calibrating the E'DF gas compressor suction manifold gace, the E'DF evaporator demister pressure gace, main steam pressure gage, turbine steam inlet pressure gage, steam generator feed water pressure gage, and two charging pump discharge pressure gages; replacing a switch and rewiring the filament supply in the-chemical laboratory spectrophota=eter; repairing a decade unit in one of the count roca scalers; repairing the pressure gage which measures the differential pressure across the storage well deminert.liser post filter; cutting 9110280240 910424 OK y PDR

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tr.ek the cables, rc.tiking the cable connections to the detectors and remaking the cabic scalc to tne enclocures ter the detectors in sour
,e range char.nel A, power l range channel 5 and power rt.nge channel C; replacing a bi-stable magnetic amplifier in the nuclear instrumentation serta tcplifier circuitsI repairing a leak in the enclosure for the detector in sourco range channel A; and replacing the norbatrol in the rod =cycment limiting circuit for coitrol rod No. 6.
5. PLANT CHA m>J Modifications to the component cooling systen were mt.de. A new and larger pump, capacity 260 c m , was installed in place of component cooling pzp #1, capacity.

155 cpm. Tne venturi in the main header of the component cooling system was replaced with one having a wider flow range. These changes were made to provide the component cooling water needs of the supercritical test loop.

Supercritical loop connections were made to the following reactor plant ,

systcms: service water, component cooling, demineralize.d water, radioactive liquid and gaseous wastes, control air, and vital electrict1 bus.

6. CFr::STRY ,

The main cooltnt system was in a cold shutdown condition throughout the month. One shutdown cooling system was opertted to remove residual core heat. A su.~.ary of the analyses made on the shutdown cooling system during the month is given below: ,

Ehutdown Cnolint' Srctem Minir.um Maximum pH 6.00 6.30 '

Conductivity, umhos 13.4 14.3 Tzron, ppm 747 749 Chlorides, ppm .005 .010 Gross Beta-Grcma,15 Min. Degassed, ue/cc .128 .196 The gross beta gama activity in the storage well water decreased from 4.95 x 10-3 ue/cc to 1.54 x 10-3 ue/cc during the month.

7. RAD!ATION AND VASTE DISPOSAL filter vault filtersRadiation surveying upon removal, consisted C.V. during of routine extended shutdown, plant site andsurveys, WDF, The waste drums.

following L.aximum readings were taken:

location Radiation Reading RWDF _,

Evaporator (underbottom) 110 mrem /hrbeta-gamma i

Evaporator (contact outside - upper level) 84 mrem /hr beta-gama WasteDrumforStorage(contact) 70 mrem /hr beta-gama Maste Drun for Storage (meter) 6.5 mrem /hr beta-gamma Vaste Drum for Shipping-(contact) 130 mrem /hrbeta-gamma Waste Drum for Shipping (meter) 8.5 mrom/hr beta-gamma Drum Storage Area (at HRA fence) 7 mram/hr beta-gama

- . . _ , _ _ . _ _ _ _ _ , _ . _ _ _ . _ _ . _ _ . _ _ . . _ . _ , _ . ~

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< Hitm h ete Dr= (taling machine - contact) 25 crem/hr beta-gena Cnarg nC P=p (contact with char.ber) 24 mrem /nr beta-gt.ran ,

l Sa .ple Roon (at door of panel) '

$.5 mrom/hr beta-gen Cnc..ical 14b Hot Sink (la from drain) 2.0 crem/nr beta-carr.a C.V.

Primary Conpartment (general upper level 15 mrem /hrbeta-gicAa PrintsryCompartment(contact-recon.HX)) 70 mrem /hrbota-canna Pri. mary Compartment (contact - non-regen. HX) 60 mrom/hr beta-geca P d. mary Compartment (general lower level) 1$ mrem /hr beta-gena Au:ci.11ary Compartnent (coneral lower icvel) 2 mrom/hr beta-greca Filter Vault (contr.ct - filters on removal) 3000 mrem /hr beta-gresa Tilter Vault (conter of room - after filter 22 mrom/hr beta-gena re. oval) heactor Dock (t.t instr =cnt ports) 70 mrom/hr beta-gamma heactor Deck (walk area - waict level) 18 mrem /hr beta-gema Reactor Dock (wt.1k aren - grating) 40 mrem /hr beta-gamma Centraint. tion curveying consisted of routine plant site surveys, surveys of .

the C.V. during extended shutdown, sources, WDP, drums for storage, and other .'

misec11aneous tools and equipment. The clean and controlled areas were generally within the "Clet.n Area" limits with the exception of permtment exclusion aret s. All areas were cicaned periodically to minimize the amount of smearable contamination.

Tne following contar.ination readings were taken:

ic e r.ti e n Contre.inetten R%dinn T':D?

Pump Room 495 d/m/ smear beta-gamma Evaporator Room 2680 d/;n/ smear beta-gena CLA NiMine Chr.rging Pep Chtsber 10600 d /cmear beta-gena 206 d / smear beta-ca=a Cnt.rging Room Floor Sample Room Sink 2940 d / smear beta-gena Sample Rocs Floor -520 d smear beta-gamma Chemical lab Hot Sink 3630 d / smear bett-gamma Sources Within- Limits C.V.

Auxiliary Compartment (lower level) 1980 d/m/ smear beta-gar.na l 18800d/m/smearbeta-gamma PrimaryCompartment(upperlevel-equignent) 930d/m/caearbeta-gamma Primary Compartment (upper level - grating) )

PrimaryCompartment(lowerlevel-equipment 4100 d/m/ smear beta-gamma Primary Compartment (louer level - floor) 830 d/m/ smear beta-garna 5

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t Liquid and gr.seous effluents fror, the S!C site for the month of March  !

were as follows: l l (Curie) (Curie) (Curie) t Effluent Activity Activity Activity 1 2 po 7..is !!enth Yer.r to Dat e tact Twelve Menthe -

1

/iquid 0.001381 0.004053 0.013351 I

Air, Xe 0.000264 10.025912 48.056B69

- Air, I-131 0.000005 0.000271 0.000823 ,

Air, M.F.P. 0.000003 0.108259 8.982508 ,

Four bt.rrels of waste were dru=~.ed for tmporary storage and thirty-five barrelt, were sr.ipped from the site.

R
.diation exposures for cil SIC personnel no measured by film badges for  ;

the ronth of Febraary,1965 were a maximum of 525 mrem with an average of 89 uren. .

P.adiation exposur9s for all viciting personnel as measured by film badges fcr the month of February,1965 were a maximum of 760 mrem with an average of 149 nrem. ~

Tu.distion exposures for all personnel on the plant site for the conth of  !

February, 1965 tsveraged to 127 mrem. l t

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}!O :!H Drch YEAR 1965 U!!IT MN:TH Ynut To DATE

! 'J :ag ll0. 0 0 377 T'J2S CRITICAL lES. 0, 514.4 11,457.4 HOUP.S CRITIOAL

. !!O. 0 1 017 TI!'.ES SOPJD2D (1%!TJAL) 0 0 25

  • in:ES S0rda:ED (IllADVERTA!;T) lio.

lWH 0 9,497.62 167,763.L4 THFR:AL P0;1ER GE!IRATIO::

0 454 51 8,457.co AVERAGE wPJ;UP 10:DA TU 0 }Mt.

00:: TROL ROD PZITIO::S AT E:D OF 1:OfiTH AT QUILIERIUM P0 DER OF 1%II: C039):7 BORON 7AA PPM RODS OUT - INCHES

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NO. 2

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NO. 3 . NO. 6 Ul37 M0!!TH YEAR TO DATE ElIC"RI CA L DM 0 1,595.00 31,241.00 M

  • OROSS GE PJ.TIO l mH 97.71 383 83 6,915.39 STATIC:t SERVICE

% - 24.06 22.16 STATIO:: SERV!CE

' 0 16.79 16,69 AVG. PUJ:7 EFFICIE!CY - KJH(e)ADM(t)  %

0 HRS) 7

}.1 0 3,103 11 3,313.37 AVG. OE:!EFATIO:! RUl:NI! 0 (_

PU.NT IDAD FACTOP,

% 0 20.86 27.28 (AVG. GEN. FOR MONTHAIAX. IDAD)

AUXILTARY STEAM SUPPLY - 1:UCLEAR HRS. 0 511. 00 0,569.82 STFJJ SUPPLIED 3? RFACTOR HRS. 0 0 15,5S8.00 RdDF EVAPOPJ30R .

OPERATION

  • FC: ARES:

w ilo operation for the month of March due to the installation of the experimental supercritical loop. _

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. Correction of nistake in December 1964 report. Also correction to Febru m/ 1965 ur.:.cr STATIOJ SDVICE $ the " Year" colutt.n should read 17.31

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