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{{#Wiki_filter:Dr. JORAM HOPENFELD Demonstration of Flawed Presentation of CHECWORKS DataFigure 1: A plotselected at random
{{#Wiki_filter:United States Nuclear Regulatory Commission Official Hearing Exhibit Entergy Nuclear Operations, Inc.
*from an Entergy CHECWORKS Report, showing how the data is presented by Entergy:                                        
In the Matter of:
*Excerpted from RIV00016A (CSI Technologies, Inc., Indian Point Unit 2 CHECWORKS FAC Model, Calculation No. 050714b-01, Revision 1, September 12, 2006, Batestamp IPEC00168480).
(Indian Point Nuclear Generating Units 2 and 3)
RIV000111 Submitted: June 29, 2012 United States Nuclear Regulatory Commission Official Hearing Exhibit In the Matter of
ASLBP #: 07-858-03-LR-BD01                                                                        RIV000111 Docket #: 05000247 l 05000286                                                        Submitted: June 29, 2012 Exhibit #: RIV000111-00-BD01                  Identified: 10/15/2012 Admitted: 10/15/2012                        Withdrawn:
: Entergy Nuclear Operations, Inc. (Indian Point Nuclear Generating Units 2 and 3)
Rejected:                                      Stricken:
ASLBP #:07-858-03-LR-BD01 Docket #:05000247 l 05000286 Exhibit #:
Other:
Identified:
Dr. JORAM HOPENFELD Demonstration of Flawed Presentation of CHECWORKS Data Figure 1: A plot selected at random* from an Entergy CHECWORKS Report, showing how the data is presented by Entergy:
Admitted: Withdrawn:
* Excerpted from RIV00016A (CSI Technologies, Inc., Indian Point Unit 2 CHECWORKS FAC Model, Calculation No. 050714b-01, Revision 1, September 12, 2006, Batestamp IPEC00168480).
Rejected: Stricken: Other: RIV000111-00-BD01 10/15/2012 10/15/2012 2 l Page Figure 2a:The non-conservative area of Figure 1 is re-plotted for comparison with Figure 3b below. Predicted wear on the y axis, measured wear on the X-axis. Top line is the LCF=1.060 line:LCF Line-50% Predicted wear (mils 3 l Page Figure 2bShowing how many more non-conservative points are not bounded by the 50% when the measured data is plotted on the Y axis and the predicted data on the x axis:Measured wear (mils) 50% LCF Line 
 
* ..,; /. " * * '" .. ,,/ /" '00 I ...... y y--.......-:::l o """" o '"}}
Figure 2a:
The non-conservative area of Figure 1 is re-plotted for comparison with Figure 3b below. Predicted wear on the y axis, measured wear on the X-axis. Top line is the LCF=1.060 line:
LCF Line
                                                                                  -50%
Predicted wear (mils 2lPage
 
Figure 2b Showing how many more non-conservative points are not bounded by the 50% when the measured data is plotted on the Y axis and the predicted data on the x axis:
Measured                                                               *     ..,;
50%
                                                                    /. "
                                            **
                                                        ..
wear (mils)
                                                              ~
                                                                          ~      LCF Line
            '"                                 ,,/                 ~
                                          /"                   ~--
            '00 y--
I ...... ~ y
                    .......-:::l~
o o""""                       p ~;a.dwnr("!';ifl  '"
3lPage}}

Revision as of 19:26, 11 November 2019

Official Exhibit - RIV000111-00-BD01 - Hopenfeld, Demonstration of Flawed Presentation of Checworks Data
ML12340A590
Person / Time
Site: Indian Point  Entergy icon.png
Issue date: 06/29/2012
From: Hopenfeld J
Riverkeeper
To:
Atomic Safety and Licensing Board Panel
SECY RAS
References
RAS 22866, 50-247-LR, 50-286-LR, ASLBP 07-858-03-LR-BD01
Download: ML12340A590 (3)
v • d • e


Text

United States Nuclear Regulatory Commission Official Hearing Exhibit Entergy Nuclear Operations, Inc.

In the Matter of:

(Indian Point Nuclear Generating Units 2 and 3)

ASLBP #: 07-858-03-LR-BD01 RIV000111 Docket #: 05000247 l 05000286 Submitted: June 29, 2012 Exhibit #: RIV000111-00-BD01 Identified: 10/15/2012 Admitted: 10/15/2012 Withdrawn:

Rejected: Stricken:

Other:

Dr. JORAM HOPENFELD Demonstration of Flawed Presentation of CHECWORKS Data Figure 1: A plot selected at random* from an Entergy CHECWORKS Report, showing how the data is presented by Entergy:

  • Excerpted from RIV00016A (CSI Technologies, Inc., Indian Point Unit 2 CHECWORKS FAC Model, Calculation No. 050714b-01, Revision 1, September 12, 2006, Batestamp IPEC00168480).

Figure 2a:

The non-conservative area of Figure 1 is re-plotted for comparison with Figure 3b below. Predicted wear on the y axis, measured wear on the X-axis. Top line is the LCF=1.060 line:

LCF Line

-50%

Predicted wear (mils 2lPage

Figure 2b Showing how many more non-conservative points are not bounded by the 50% when the measured data is plotted on the Y axis and the predicted data on the x axis:

Measured * ..,;

50%

/. "

..

wear (mils)

~

~ LCF Line

'" ,,/ ~

/" ~--

'00 y--

I ...... ~ y

.......-:::l~

o o"""" p ~;a.dwnr("!';ifl '"

3lPage

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