ML19254B086

Forwards Suggestions for Dealing w/TMI-2 Incident.Requests Views & Opinion

ML19254B086
Person / Time
Site:	Crane
Issue date:	06/20/1979
From:	Petersen B AFFILIATION NOT ASSIGNED
To:	Case E Office of Nuclear Reactor Regulation
Shared Package
ML19254B084	List: ML19254B083 ML19254B086
References
NUDOCS 7909240272
Download: ML19254B086 (4)

Text

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,,,M June 20, 1979 a

J'M.:

808 Pennsylvania Ave.

J ?,c C

,3 Bremerton WA. 98310 K3

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<Q' ik 5 Gentleman; I have just finished reading a copy of an article titled "The Three Mile Accident" from the April issue of " Science x.-

News".

Now I suppose I know 'more than the average person on the street but am by no means one of those "sheepskinned lined engineers" both NRC and the Power Companies brag about-but even with my knowledge and experience, based on what I read, I could see gross errors and pure flagrant

yiolations of all that is written on nuclear Safety!

I spent 12 years in a Nuclear Program that with its one accident did less' damage than TMI and involved totally less radiation and exposure to people.'

I was in the Army Nuclear Power Program and was qualified as a Nuclear Shift Supervisor on two Pressurized Water Plants, I was a Reactor Operator on C.

a Gas Cooled Plant and was the Radiological Control / Health Physicist at all three installations.

I was involved with Enviromental studies at all of the sites and was involved in decommissioning (mothballing) and completely sealing up two of them.

I've operated Reactors, Power Plants and also been responsible for Shipping Spent Fuel and high a' d n

low level waste along with day to _ day _ Radio _ logic.al_ Safety programs - so--I guess like me~ my dxpe~i~adce is well r6Unded. ~ ~ ~ ~ "

r Because of this when I read the article I coulk not help 'but note many many obvious errors, faults, and problems with the whole situation and I would like you to look at my questions

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and see if you do not agree and perhaps we can get some answers.

Enclosed are questions and problems I noted just from the article - accurate or not this is what I saw How do you see it?

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Most Repectfully,

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Boy /F. Petersen 808 Penn. Ave.

Bremerton WA.

98310 Currently employed at Puget Sound Naval Shipyard k

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QUESIONS

1. What is wrong with the Secondary Water Quality to require a full flow Demin. in the BF system?

Water Chemistry?

s A) Why not use a Demin./ Bypass flow system to prevent flow failure, boiling SG dry? Design?

2. Procedural problem - at each startun all Aux./ Backup systems operationally checked by onerating.

A) Tais checks backup instrumentation and functional

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• ability of system.

Procedure?

3. Operating pressure span too close-to SCRAM / safety lift pressures.

Consider lowering loop T(avg) for safety this should not overly effect output.

Procedure?

4. Pressurizer relief surge tank problem.

A) Should be empty during Opr.(minimum heat sink)

B) Should have an op/4 full alarm. Procedure and Design?

erational reliable 2 alarm system on level Suggest 1/2 and 3 C) Along with level alarm a pressure alarm also to denote filling and pressurizing to alert CRO.

Design?

D) Surge tank should hold Approx. same as loop pressure prior to disc rupture - allows time for the operator to make corrective action.

Design?

E) Procedure / Functional addition - insert a reliable open/close Hi pressure valve between Safety and surge tank - Procedure at i or 3/4 level alarm secure valve to close system.

.n Design?

Procedural-Have a BF/Demini mgpual By-pass to allow flow into SG to maintain level and use as a heat sink. Design?

cm Procedural-Opr. error-Pressurizer Hi level without corres-

~ponding pressure increase sign of instrument error-a full pressurizer W/ Safety open no big deal.

Procedure?

Instrument-Use more than one Pressurizer level instrument system-one using not an open upper reference leg but a calibrated closed leg.

Design?

Onerational-With ECCS on and water in SG cooling, loop pressure / Temp reduced no flashing problem.

NRC Error-Containment. Violation during Reactor _ problems _ ability _ _

of system to pump contaminated water if pressure less than set point (too little restriction)~this should also be l~ inked

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-- -- to some - safe reduced loop-temperature.--- -- ---

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Onerational/ Procedural-Waste water tanks and building.

1. Each tank should have high level alarms and a local / remote

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indichtor for CRO~(Coht~rol~ Room Opeidtof) ~

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2. Waste Water Tanks should have an overflow to a common buried tank as an' Emergency Container.

Tank building should employ a Ventallating/ Cooling System that draws from 992 344

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atmo.

(particulate / charcoal) to emergency utilized cavitating; via bldg. through filters at a time periodicallyFlow th d be at reduced speed coul t pumps Overational Main Coolan cooling or onet versus pump??? overheating.

rations

.ciredcry pump ope i

as necessary to maint n would suffice cost planprevented fuel damage or e xcessive at least 2 al grabmore frequent.

situationuting houly or G (if leak SG on line Secure Good S

a. problem

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Querational Inof Secondary should be ro from tors, when Cond. pressurehigh ve age If leak occurs, and both samples not gross) Secure Air Ejecessentially saved on only enough water inLe, ay_sy non-condensibles gets too(Now you've Maintain e

all Secondary water pumpto do the jo steam generator.)

Reactor.

tank for) decay.

activity, t (heavily containment, gasesSpray system Hot well Design?

seal on venting to content.

Overational With steam a problem.some defree Hz

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and Hydrogen Pressure iscould reduce pressure a d to O '

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