ML20078B624

From kanterella
Jump to navigation Jump to search
Forwards Ri Nuclear Science Ctr Proposed 3 MW or Higher ECCS Plan
ML20078B624
Person / Time
Site: Rhode Island Atomic Energy Commission
Issue date: 10/07/1994
From: Tehan T
RHODE ISLAND, STATE OF
To: Mendonca M
Office of Nuclear Reactor Regulation
Shared Package
ML20078B629 List:
References
NUDOCS 9410260164
Download: ML20078B624 (1)


Text

-

l l

T STATE OF RHODE ISL.AND AND PROVIDENCE PLANTATIONS sfp?+ RHODE ISLAND ATOMIC ENERGY COMMISSION Nuclear Science Center South Ferry Road i Narragansett, R. I. 02882 October 7, 1994 9

Docket No. 50-193 [

Mr. Marvin Mendonca, Senior Project Manager 1

( Non-Power Reactors, Decommissioning and  ;

Environmental Project Directorate Division of Reactor Projects - III/IV/V U. S. Nuclear Regulatory Commission  ;

Washington, D.C. 20555  ;

Dear Mr. Mendonca-1 Enclosed you will find a copy of.the revised Emergency Core )

Cooling System (ECCS) 'for Facility License No. R-95. To )

reduce the leak rate during a design basis accident of a beam port leak, 1/2 inch orifices are currently being installed in all the beam port vent lines. The resulting leak rate is significantly less than the previous calculations and has resulted in a decision to reduce the l size of.the ECCS and simplify it's operation.-This revision l- incorporates all your comments from the previous design or i l makes the comment no longer applicable. If there are any

! questions, please call me at 401-789-9391.

Sincerely, i i

/ s, b Ds// -

Tdrry ehan  :

Dir or J

l TT':cd Enclosure cc: Jim Matos, Argonne National Laboratory e-onpq .

nuuw%a 9410260164 941007 PDR ADOCK 05000193 i P PDR l

l 4'\ r l i _ _ ._ __. - . _ _ _ _ _ _ _ __-. . -