g e n eF-1rat i on

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Containment Systems Overview

© 2011 Babcock & Wilcox Nuclear Energy, Inc. All Rights Reserved.

generatiot iO

wContainment Systems Introduction

" PurposeDiscuss containment systems design features for the mPowerreactor and applicability to the SRP

* Topics to be discussedo Containment layout overviewo Summary of containment design parameterso Residual heat removal and containment cooling, Containment isolation system

Combustible gas control / containment purgeLeakage and containment testing

o Containment analysis methodologyo Control room ventilation systemo Other nuclear island ventilation systems

© 2011 Babcock & Wilcox Nuclear Energy, Inc. All rights reserved. 2

g e j r-a[ t 10f'

niPbwerI

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I[CCI per Affidavit 4(a)-(d)]

© 2011 Babcock & Wilcox Nuclear Energy, Inc. All rights reserved. 3

generatior-rn•or Containment Elevation Looking East

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© 2011 Babcock & Wilcox Nuclear Energy, Inc. All rights reserved. [CCI per Affidavit 4(a)-(d)]

_ e [ e t t i 10 V

ier Containment Elevation Looking North

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I[CCl per Affidavit 4(a)-(d)]

© 2011 Babcock & Wilcox Nuclear Energy, Inc. All rights reserved. 5

g e n e(rat I or-)mpo we, Containment Plan at El. 17'-0"

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[CMl per Affidavit 4(a)-(d)] 6© 2011 Babcock & Wilcox Nuclear Energy, Inc. All rights reserved.

g e n e rat i ro)

miPo we, Containment Plan at El. 32'-0"

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[CCI per Affidavit 4(a)-(d)]© 2011 Babcock & Wilcox Nuclear Energy, Inc. All rights reserved. 7

yeneratiorl

miPower Containment Plan at El. 44'-0"

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[CCI per Affidavit 4(a)-(d)]

© 2011 Babcock & Wilcox Nuclear Energy, Inc. All rights reserved. 8

generatiIV. n

Containment Plan at El. 60'-0"

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I[CCI per Affidavit 4(a)-(d)]

© 2011 Babcock & Wilcox Nuclear Energy, Inc. All rights reserved. 9

g en e ra [io 1

m4ower Containment Plan at El. 80'-0"

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I[CCI per Affidavit 4(a)-(d)]

© 2011 Babcock & Wilcox Nuclear Energy, Inc. All rights reserved. 10

generatiorContainment Design Parameters

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][CCI per Affidavit 4(a)-(d)]

© 2011 Babcock & Wilcox Nuclear Energy, Inc. All rights reserved. I1I

genc -at(IOVi1

miJower Containment Mass & Energy

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I[CCI per Affidavit 4(a)-(d)] 12

© 2011 Babcock & Wilcox Nuclear Energy, Inc. All rights reserved.

gene r ti0 [-nmPower Post-LOCA Containment Cooling

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[CCI per Affidavit 4(a)-(d)]© 2011 Babcock & Wilcox Nuclear Energy, Inc. All rights reserved. 13

9genle r ation

Containment Isolation Provisions

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I[CCI per Affidavit 4(a)-(d)]

© 2011 Babcock & Wilcox Nuclear Energy, Inc. All rights reserved. 14

g e n e ra tio

iPower Combustible Gas Control

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[CCI per Affidavit 4(a)-(d)]© 2011 Babcock & Wilcox Nuclear Energy, Inc. All rights reserved. 15

g e r e ratIon

,.Po,,Containment Purge Operation Summary

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[CCI per Affidavit 4(a)-(d)]

© 2011 Babcock & Wilcox Nuclear Energy, Inc. All rights reserved. 16

cjerneratiolrwer Proposed Containment Purge System

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I[CCI per Affidavit 4(a)-(d)]

© 2011 Babcock & Wilcox Nuclear Energy, Inc. All rights reserved. 17

gw e r I er o r

miPo we Containment Leakage and Testing

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I[CCI per Affidavit 4(a)-(d)]

© 2011 Babcock & Wilcox Nuclear Energy, Inc. All rights reserved. 18

generationg en era1orContainment Analysis Methodology

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][CCI per Affidavit 4(a)-(d)]

© 2011 Babcock & Wilcox Nuclear Energy, Inc. All rights reserved. 19

g e nerat o n

mPower Subcompartment Analysis

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][CCI per Affidavit 4(a)-(d)]

© 2011 Babcock & Wilcox Nuclear Energy, Inc. All rights reserved. 20

gje nera L t ion)

miPowerMain Control Room Ventilation

System Design Summary

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I[CCI per Affidavit 4(a)-(d)]

© 2011 Babcock & Wilcox Nuclear Energy, Inc. All rights reserved. 21

geneatLi -1ni~orr Control Room Ventilation System

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I[CCM per Affidavit 4(a)-(d)]

22© 2011 Babcock & Wilcox Nuclear Energy, Inc. All rights reserved.

genera tion

nTIPO we[

I[CCI per Affidavit 4(a)-(d)]

23© 2011 Babcock & Wilcox Nuclear Energy, Inc. All rights reserved.

"Iet (a O A LI (

m4PowerNuclear Island Ventilation

System Design

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I[CCI per Affidavit 4(a)-(d)]

© 2011 Babcock & Wilcox Nuclear Energy, Inc. All rights reserved. 24

generation

MPOwrAMMM~fh SRP Applicability

-etinTil Rmark

6.2.2

6.2.3

6.5.1

6.5.2

9.4.1

9.4.2

9.4.5

Containment HeatRemoval

Secondary Containment

ESF Atmosphere Cleanup

Containment spray

Control Room Ventilation

Spent Fuel AreaVentilation

ESF Ventilation Systems

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[CCI per Affidavit 4(a)-(d)]© 2011 Babcock & Wilcox Nuclear Energy, Inc. All rights reserved. 25