ML19210A121

Submits Radial & Total Power Peaking Measurements Tests in Response to DPR-50,Amend 40.Results Higher than B&W Predictions But within Full Power Rating Specified in OL

ML19210A121
Person / Time
Site:	Crane
Issue date:	06/15/1978
From:	Herbein J METROPOLITAN EDISON CO.
To:	Reid R Office of Nuclear Reactor Regulation
References
GQL-1072, NUDOCS 7910240838
Download: ML19210A121 (5)

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SUBJECT:

NOTIFICATION OF THE LOSS OF AN ENVII ad un-+-w e'-*

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POST OFFICE BOX 542 READING, PENNSYLVANI A 19603 TELEPHONE 215 - 929-3601 June 15, 1978 GOJ, 1072 Director of :Tuclear Reactor Regulation Attn: R. W. Reid, Chief Operating Reactors Erand tio. h U.S. !Iuclear Regulatory Ccemissicn Washington, D. C.

20555

Dear Sir:

Three Mile Island :Iuclear Station Unit 1 (TMI-1)

Operating License ?Io. DPR-50 Docket Ilo. 50-289 Radial and Total Power Peaking Measurements at 25.05 EFFD In response to Amendment 40 of the TMI-1 Facility Operating License ?lo. DPR-50, paragraph 2.c.(3), the 100% Full Power Core Power Distribution Test was per-formed on May 31, 1978 with 25.05 EFFD cn TMI-1 Cycle 4.

The tvc enclosed pages show the radial and total peaking factors for an eighth core.

"he largest radial peak vas measured to be 8.915 higher than the Eabcock and Wilcox prediction. This is within the limit that was used by Eabecek and Wil-ccx for the Cycle h analysis.

The largest total peak vas measured to be 6.935 higher than the Babecek and Wilcox prediction. This is within the limit that was used by Babecek and Wilcox for the Cycle h analysis.

Thus, the test shows that all of the peaking facters are within the limits specified in paragraph 2.c.(3) of the TMI-1 Facility Operating License :To.

DPR-50 for the full pcVer rating of the facility.

Sincerely, I('/

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J. G. Eerhein Vice President-Generation JGH:WSS:cjg

Enclosures:

(1) Eighth Core Map showing radial peaking factors (2) Eighth Ccre Map showing total peaking rectors 1489 351

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RADIAL PE.1TIG FACTORS l

8/H 9/G 10/F 11/E 12/D

.13/C ll4/B 15/A e,18 1.075 1.219 1.005 1.229 0.860 0.8k5 0.736 H/0 0 935 1.056 1.192 0.889 1.18k 0.9ho 0.798

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1.22h 1.105 1.188 1.0h0 1.216 0.876 0.778 K/9 1.207 1.050 1.123 1.072' 1.162 0.861 0.81h

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i 1.3h7 1.109 1.129 0.908 1.121 0.66h L/10 I

1.227 1.039 1.090 0 9ho 1.201 0.708 0.9h5 1.233 0.959 0.913 fl/ll 0.989 1.1hh 0.952 1.010 LEGEND 1.072 1.096 0.650 X.XXX Measured Value N/12 0.953 1.130 0.722 X.XX Calculated Value O.520 5

0/13 0.570

% vd.

Maximum Measured Value 1.3h7 rp.

1-4 100 Maximum Calculated Value 1.227 Gp.

5 100 Maxiraum Error (%): 0 91 Gp.

6 100 1.3h7 - 1.227 X.100 = 8.91",

P' 1.347 Gp.

8 29 100 Power Level

%FP Effective Full Power Days 25.05 EFPD 1489 352

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f TOTAL PEAKriG FACTCRS 8/H 9/S 10/F 11/E 12/D 13/C 14/B 15/A 1.059 1.215 1.390 1.146 1.h3h 1.039 0 985 0.893 1.11T 1.'2'1T 1.383 1.136 1.385 1.202 1.027 1.035 1.h15 1 332 1.385 1.229 1.517 1.059 0 920 K/9

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1. 2'3'3 1.312 1.233 1.385 1.060 1.030 1.615 1.356 1.502 1.0h6 1.353 0.798 4

L/10 1.503 1.266 1.h6h 1.100 1.461 0.881 1.11T 1.463 1.11c' 1.073 f1/11 1.201 1.408 1.127 1.220 LEGEND X.XXX Measured Value 1.288 1.277 0.776 N/12 X.XX Calculated Value 1.2h3 1.358 0.876 0.595 0/13 0.6e6

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Maximum Measured Value 1.615 cp, 1_4 100 Maximum Calculated Value 1.503 Gp.

5 100 Maximum Error (%): 6.93 Gp.

6 100 1.615 - 1.503 X 100 = 6.935

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1.615 cp.

8 29 Power Level 100

%FP Effective Full Power Days 25.05 EFPD 1489 353