ML19339A423
| ML19339A423 | |
| Person / Time | |
|---|---|
| Site: | Yankee Rowe |
| Issue date: | 07/15/1976 |
| From: | Schwencer A Office of Nuclear Reactor Regulation |
| To: | |
| Shared Package | |
| ML19339A422 | List: |
| References | |
| NUDOCS 8011030782 | |
| Download: ML19339A423 (5) | |
Text
e p
'%g
.q UNITED STATES
(/ K c4 NUCLEAR REGULATORY COMMISSION fl j
y WASHINGTON, D. C. 2056G 4
9, a
d.
%,.....f 4
1 YANKEE ATOMIC ELECTRIC COMPANY-DOCKET NO 50-29 YANKEE NUCLEAR POWER STATION (YANKEE-R0h'E)
AMENDMENT TO FACILITY OPERATING LICENSE Amendment No. 28 License No. DPR-3 1.
The Nuclear Regulatory Commission (the Commission) has found that:
A.
The application for amendment by Yankee Atomic Electric Company
.l (the licensee) dated April 21, 1976, complies with the standards and requirements of the Atomic Energy Act of 1954, as amended (the Act), and the Commission's rules and regulations set forth in 10 CFR Chapter I; t
B.
The facility will operate in conformity with the application, the provisions of the Act, and the rules and regulations of the Commission; C.
There is reasonable assurance (i) that the activities authori:ed by this amendment can be conducted without endangering the health and safety of the public, and (ii) that such activities will be conducted in compliance with the Commission's regulations; D.
The issuance of this amendment will not be inimical to the common defense and security or to the health and safety of the public; and E.
The issuance of this amendment is in accordance with 10 CFR Part 51 of the Commission's regulations and all applicable requirements have been satisfied.
2.
Accordingly, the license is amended by changes to the Technical Specifications as indicated in the attachment to this license amendment.
7 b
.so n030 w
C G
2-3.
This license amendment is effective as of the date of its issuance.
POR THE NUCLEAR REGULATORY COMMISSION MM b
A. $chwencer, Chie'f Operating Reactors Branch #1 Division of Operating Reactors
Attachment:
Changes to the Technical Specifications s
Date of Issuance: July 15,1976 9
9 s
}
b s
9
~*
,-----nn,
,,,nv,,n,,..p.,
O O
ATTAWENT TO LICENSE AMENDENT NO.
FACILITY LICENSE NO. DPR-3 i.
DOCKET NO. S0-29 Revise the Technical Specifications as follows:
Remove page 203:1 and drawing 646-J-421 from the Final Hazards Summary Report and replace with revised pages 203:1 and 203:1A and revised drawing 646-J-421.
I w
203:1
{
{
'203 CHARGING A',*D VOLUME CONTROL SYSTEM General The charging and volume control system is an auxiliary system in the primary plant and is designed to accomplish the following major functions:
Water charging to the main coolant system Water renoval from the main coolant system Boric acid addition and removal for control purposes Quenching of relief and safety valve discharge Pressuri:er vessel cooling and decontamination Noncondensible gas removal Chemical addition Water charging to auxiliary system and equipment The arrangement of tE charging and volume control system is shown en drawing No. 646-J-430, Revision 12, dated March 23, 1976.
It contains the following majcr items of equipment, designed in accordance with the following codes:
Equipment
- ASME Section VIII - 1956 - Unfired Pressure Vessels Piping
- ASA 31.1 - 1955 - Code for Pressure Piping, Sections 1 and 6 Valves, Tittings - ASA B16.5 - 1953 - Code for Steel Piping and Flanged Fittings High Pressure Charging Pumps Three motor driven positive displacement charging pumps are provided in the charging and volume control system. The capacity of each pump is approxi-mately 33 spe, when operating against a discharge head of 2,100 psi gage. Two of the pu:ps serve as a spare for the other, and they can be operated singly or simultaneously, if required. Any pump can be isolated from the system for re-pairs.
Two of the pumps are driven through variable speed fluid couplings, so that their flew can be controlled between 11 and 33 gpm.
Pump No. 3 may be used in conjunction with the loop fill and chemical injection line to accomplish charging to any isolated loop while one or both of the other charging pumps is servicing the reactor vessel portion of the main coolant system.
All of the high pressure charging pumps are provided with a pressure relief valve.
Pulsation Dampener A herogeneous chrome moly pulsation dampener is installed on the l
discharge of Number 3 charging pump. It serves'to reduce the pressure variation created by the variable speed pump and is employed to reduce fatigue stressing.
Tne dampener basic operation consists of absorbing the potential energy of the pressure shock by the compression of a bladder precharged with nitrogen.
Amendmer.t No. 28
h h
203 lA Feed and Bleed Heat Exchanger The feed and bleed heat exchanger consists of a set of four small individual heat exchangers connected in series, which cool the bleed before it is reduced in pressure. Multiple.exchangers are employed in order to reduce the siz. ei metal parts and the corresponding high thermal stresses that may occur durn.g severe thermal transient operation.
The bleed flows through the tubes while the feed is passed through the shell side, thus recovering some of the heat otherwise lost in a bleeding process.
I I
Amendment No. 28 1
..