ML19253B302
| ML19253B302 | |
| Person / Time | |
|---|---|
| Site: | Allens Creek File:Houston Lighting and Power Company icon.png |
| Issue date: | 08/10/1979 |
| From: | Doherty J DOHERTY, J.F. |
| To: | |
| Shared Package | |
| ML19253B301 | List: |
| References | |
| NUDOCS 7910100683 | |
| Download: ML19253B302 (2) | |
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UNITED STATES UUCLEAR REGULATORT COMMISSION 8/10/79 J,l HEFORE THE ATCMIC 3AFETf AND LICENSUG 3OARD In the Matter of:
l Houston Lighting & Power, D ket c.,50 46o.
( Allens Creek Nuclear Generating j
Station, Un't #1)
I JOHN F. 1,OHERTT' AMENDED C d. a..:.ONS #33, 19 John F. Doherty, Intsrvenor in the above Constructics License Proceeding, new files the below amended contentions 5
to the Boari. Fard es should have previous'7 received anend-ments to Contentions numbered:12, 22,23,2e..rs,28,29,34, and 38, these being filed following a 3 card order sugge ting amendments would be received.
Amended Contention 533, Applicant's reactivit7 control systes relies excessively on the Doppler effect to nitigate the effects of transient cau-sed overpower of the system. Applicant's reactor sanufacturer General Electric, relies on experimental data that does not support this reliance as will be shown below. Applicant's referenced publiction, NEDO-20,964 " Generation of 7eid and Doppler Reactivity ?sedback for Application to 3WR design (July,1975) states, "The basic sathe=atical sedel in calcu-lating void reactivity and reactivity coefficiant for 3WRs has been the sa=e since 1961, (Pg 15). Ihis nathmatical model has been relied upon because it produced data sisilar to the experimental data produced from experiments using the SFERT-I arai SPERT-III reactors. But the experiments from SPERT-I cited. in NEDO-20,964, cannot be applied because that reactor used a powderered oxide of uranius which dispersed into the molant during excursi:n testing, creating the appearance that i
Doppler-feedback had decreased the reactivity when it was actually the dispersal of the powder through the failed cladiing to the coolant which sitigated the transient effects. SPIR:l'-III, ref-erenced in NEDO-20,964 was an "... experimental progrss {1} inited to non-destructire reactivity accident tests," (C O-172S1, March, i
1969, P. 79), which did not include investigation into the nech-anical behavior of the fuel (pellats of uranium dioxide). The National Reactor Testing Station planned and sought support for j
for investigations with SPERT-III which would not be limited to non-destructive reactivity accident test in an internal repo,rt, f
PTR-815 (Se: pp 17-9, and 3c), but the tests were not perfor=ed.
l Intervenor centends that since ACNGS is the most powerful i
BWR attempted (and has a higher power core: density than an7 l
licensed 3WE) that 21scalenlation of the Doppler reactivit7 feedback eff*et will produce greater consequences to his health and safety interests. Inter enor seeks as a result:
(a) Delay of the construction license until excursien testing can be done (on a 238 inch core with irradiated oxide fuel in pellatized form in an 8 x 8 configuration,) as sought by the National Regetor Testing Station, 79101oo 6Fr3 1124 306
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(b) Cancelllation of the AC2;GS project.
t Amended Contention d14 Intervenor contends Applicant's control r[d drive
-l systen (CRDS) is susceptible to cracking in collet retainer tubes which will prevent operation of two or nore control rod drives durin; an accident se-I quence, =aking safe shutdown impossible thus endandangering Intervecor's health and safety. ?denty-four (2n) of sixty-five (65) inspected CH3s were found cracked in 1975 at the Montieello nuclear plant. :IUREG-0479 reports that 10% of m inspected collet retainer tubes in 11 Boiling fater Reactors had such cracks. This in-tervenor contends that: -
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collet retainer tubes are one of the, {p]rincihal...engi.neer-ini; griteria for the design...for the protection of the health and safety of the public" and hence sust be cured of cracking proble=s before a construction license say be tendered.
]
- See 10 CFR 50.35 (a) (1).
C.~1T!?ICATE OF SERCE Copies of "JCEN F. DCET!'S A2CCC CONTENDICNS #33,19",
wers served on parties listed below via first class sail on 2
August /d th, 1979 Respectfdln wohn F. Dohert7 pro so)
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S N CN J. WOLFE, ESQ. (NRC)
CARRO EINDERSTEIN, ESC.
i DR. E. LEONARD CEEATUM, NRC 3RENDA MCCORELE, ESQ.
GUSTAVE A. LINZHRERGER, NRC WAYNE RENTIRO l
J. GREGORT COPELA2D, ESQ. (A??.)
DCCIETING AND SER7!OE(NRC)
RICHARD A LOWERRE, ESQ. (TEILS) i JAMES M. SCCTT (TEIFIRG)
R. cOCON GCCCH, ESQ. (A??
[
STE7E SCEINZI, ESQ. (STAF?
l 4
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I t
i 1124 307
.