ML20141M118

Proposed TS Spec 1.3 Re Fuel Enrichment Limit in Reactor Core

ML20141M118
Person / Time
Site:	Maine Yankee
Issue date:	03/24/1992
From:	Maine Yankee
To:
Shared Package
ML20141M115	List: ML20141M112 ML20141M118 ML20141M120
References
NUDOCS 9204010185
Download: ML20141M118 (2)

Text

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ATTACilMENT B >

I 1.3 REACTOR ecolicabilitY Applies to the reactor vessel, vessel core and internals, as well as the Renctor Coolant System and components, including associated Emergency Core Cooling Systems.

Ob.iectives to define those design criteria essential in providing for safe system operation which are not covered in Sections 2 and 3.

Snecificati.QD A. Restor Core The reactor core shall contain 217 fuel assemblies with each assembly containing i 176 rods. Each fuel rod clad with Zircaloy-4 shall have a nominal acthe fuel length from 136 to 137 inches. The maximum as-fabricated radially-averaged enrichment of any axial enrichment zone within a fuel assembly shall be '3.95 weight percent U-235.

The core excess reactivity shall be controlled by a combination of boric acid chemical shim, Control Element Assemblies (CEAs) and mechanically fixed non-fuel rods when required. The non-fuel rods may be fixed alumina-boron carbide, solid metal or open tubes.

There are a total of eighty-one (81) full-length, full-strength CEAs provided.

Forty (40) of these are paired to form twenty (20) dual CEAs. Seventy-seven ]

(77) CEAs, including all dual CEAs, are trippable. Four (4) of the CEAs are ,

nontrippable.  ;

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ATTACHMENT C CR111CALITY AllALYSIS Of Mall 1E YAf4KEE'S SPElli FUEL STORAGE RACKS TO ALLOW UP TO 3.95 W/0 (1-235 FUEL YAEC-1828, tiovember 1991 e

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