ML16343A734

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7 to Updated Final Safety Analysis Report, Chapter 14, Table 14.3.5-1, Parameters Used for the Offsite Radiological Consequence Analysis of a Loss of Coolant Accident
ML16343A734
Person / Time
Site: Cook  
Issue date: 10/24/2016
From:
Indiana Michigan Power Co
To:
Office of Nuclear Reactor Regulation
Shared Package
ML16336A263 List: ... further results
References
AEP-NRC-2016-42
Download: ML16343A734 (2)


Text

IINNDDIIAANNAA AANNDD M MIICCHHIIGGAANN PPOOW WEERR DD.. CC.. CCOOOOKK NNUUCCLLEEAARR PPLLAANNTT UUPPDDAATTEEDD FFIINNAALL SSAAFFEETTYY AANNAALLYYSSIISS RREEPPOORRTT Revision:

23 Table: 14.3.5-1 Page:

1 of 2 PARAMETERS USED FOR THE OFFSITE RADIOLOGICAL CONSEQUENCE ANALYSIS OF A LOSS OF COOLANT ACCIDENT Parameter Value Core Power Level 3480 MWt Containment Volumes Upper Containment Sprayed 609,000 ft3 Upper Containment Unsprayed 120,000 ft3 Ice Condenser 103,000 ft3 Lower Containment Sprayed 101,000 ft3 Lower Containment Unsprayed 64,000 ft3 Fan/Accumulator Rooms 47,000 ft3 Dead-Ended 18,000 ft3 Containment Ventilation Flow Rates1 Fan/Acc Rooms to LC Unsprayed 14,530 cfm LC Unsprayed to Fan/Acc Rooms 1,350 cfm LC Unsprayed to Dead-Ended 90 cfm Dead-Ended to Fan/Acc Rooms 90 cfm LC Unsprayed to Ice Condenser 13,090 cfm Fan/Acc Rooms to LC Sprayed 22,910 cfm LC Sprayed to Ice Condenser 22,910 cfm Ice Condenser to UC Sprayed 30,070 cfm UC Sprayed to Fan/Acc Rooms 30,070 cfm Ice Condenser to UC Unsprayed 5,930 cfm UC Unsprayed to Fan/Acc Rooms 5,930 cfm Containment Ventilation Initiation 3 min Elemental Iodine Removal Coefficients Upper Containment Sprayed 10 hr-1 Lower Containment Sprayed 10 hr-1 Fan/Accumulator Rooms 10 hr-1 Particulate Iodine Removal Coefficients Upper Containment Sprayed Decontamination Factor 50 5.17 hr-1 Decontamination Factor > 50 0.517 hr-1 Lower Containment Sprayed Decontamination Factor 50 6.83 hr-1 Decontamination Factor > 50 0.683 hr-1 Fan/Accumulator Rooms Decontamination Factor 50 3.15 hr-1 Decontamination Factor > 50 0.315 hr-1 1 Flow rates listed do not include the contribution from natural convection.

IINNDDIIAANNAA AANNDD M MIICCHHIIGGAANN PPOOW WEERR DD.. CC.. CCOOOOKK NNUUCCLLEEAARR PPLLAANNTT UUPPDDAATTEEDD FFIINNAALL SSAAFFEETTYY AANNAALLYYSSIISS RREEPPOORRTT Revision:

23 Table: 14.3.5-1 Page:

2 of 2 PARAMETERS USED FOR THE OFFSITE RADIOLOGICAL CONSEQUENCE ANALYSIS OF A LOSS OF COOLANT ACCIDENT Parameter Value Spray Initiation 3 min Spray Interruption for Switchover to Recirculation Mode 31 min - 38 min Maximum Elemental Iodine Decontamination Factor 200 Duration of Elemental Iodine Removal Effectiveness 0.9 hr Duration of Particulate Iodine Removal Effectiveness Decontamination Factor of 50 Attained 1.214 hr Credit for Spray Terminated 24 hr Containment Leak Rate 0 - 24 hr 0.25 weight % per day 24 - 720 hr 0.125 weight % per day Iodine Chemical Form in Containment Atmosphere Elemental 91%

Organic 4%

Particulate 5%

Containment Sump Volume 50,000 ft3 Minimum Containment Sump pH 7.0 Effective Unfiltered ESF Leakage Outside Containment 0.2 gpm ESF Leakage Iodine Flashing Fraction 0.1 Iodine Chemical Form in ESF Leakage Elemental 97%

Organic 3%

Start of ESF Leakage Outside Containment 31 min Containment Purge Flow Rate 23,100 cfm Containment Purge Duration 30 sec Iodine Chemical Form for Containment Purge Release Elemental 91%

Organic 4%

Particulate 5%

Release Locations Containment Leakage Release Path Containment ESF Leakage Release Path Auxiliary Building Containment Purge Release Path Containment Breathing Rates 0 - 8 hr 3.5E-04 m3/sec 8 - 24 hr 1.8E-04 m3/sec 24 - 720 hr 2.3E-04 m3/sec