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Who Destroyed Three Mile Island?

Nickolas Means
April 17, 2018
Programming
0
550

Who Destroyed Three Mile Island?

(as presented at RailsConf 2018)

Nickolas Means

April 17, 2018
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Transcript

  1. Who Destroyed
    Nickolas Means
    @nmeans

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  2. Who Destroyed
    Nickolas Means
    @nmeans

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  3. @nmeans

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  4. @nmeans • #WhoDestroyedTMI
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  5. @nmeans

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  6. @nmeans

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  7. @nmeans

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  8. @nmeans

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  9. @nmeans

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  10. @nmeans

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  11. @nmeans

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  12. @nmeans

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  13. Three Mile Island Nuclear Generating Station
    Londonderry Township, Pennsylvania
    @nmeans

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  14. Three Mile Island
    Harrisburg, Pennsylvania
    @nmeans • #WhoDestroyedTMI
    @nmeans
    TMI Unit 2
    906 MWe
    Babcock and Wilcox PWR

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  15. @nmeans
    Bill Zewe
    Fred Schiemann
    Ed Frederick
    Craig Faust

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  16. Condensate Polishers
    @nmeans

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  17. Three Mile Island Unit 2
    @nmeans

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  18. Three Mile Island Unit 2
    @nmeans

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  19. Three Mile Island Unit 2
    @nmeans

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  20. Three Mile Island Unit 2
    @nmeans

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  21. Three Mile Island Unit 2
    @nmeans

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  22. Three Mile Island Unit 2
    @nmeans
    ❌

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  23. Three Mile Island Unit 2
    @nmeans
    ❌

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  24. Three Mile Island Unit 2
    @nmeans
    ❌

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  25. @nmeans
    TMI Unit 2 Control Room

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  26. Three Mile Island Unit 2
    Three Mile Island Unit 2
    @nmeans

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  27. Pressurizer
    @nmeans
    Connection to Primary
    Cooling Loop
    Heating Element
    Water Spray
    1. Regulates System Pressure
    2. Measures Water Level
    3. Absorbs Pressure Shocks

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  28. Three Mile Island Unit 2
    Three Mile Island Unit 2
    @nmeans

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  29. Three Mile Island Unit 2
    Three Mile Island Unit 2
    @nmeans

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  30. Three Mile Island Unit 2
    @nmeans

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  31. Three Mile Island Unit 2
    @nmeans

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  32. @nmeans

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  33. Three Mile Island Unit 2
    @nmeans

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  34. Three Mile Island Unit 2
    Three Mile Island Unit 2
    @nmeans

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  35. @nmeans

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  36. Three Mile Island Unit 2
    Three Mile Island Unit 2
    @nmeans

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  37. @nmeans

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  38. Three Mile Island Unit 2
    Three Mile Island Unit 2
    @nmeans

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  39. Three Mile Island Unit 2
    Three Mile Island Unit 2
    @nmeans

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  40. Three Mile Island Unit 2
    @nmeans

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  41. @nmeans

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  42. Three Mile Island Unit 2
    @nmeans
    ❌
    ❌

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  43. @nmeans

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  44. Fuel Rod Assembly
    @nmeans

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  45. Gary Miller
    George Kunder
    @nmeans

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  46. Three Mile Island Unit 2
    @nmeans
    ❌

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  47. Three Mile Island Unit 2
    @nmeans
    ❌
    ❌
    ❌

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  48. @nmeans

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  49. @nmeans

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  50. @nmeans

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  51. Final Core State
    @nmeans

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  52. @nmeans

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  53. Three Mile Island Today
    @nmeans

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  54. @nmeans

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  55. @nmeans

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  56. @nmeans
    Hindsight Bias

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  57. @nmeans
    Outcome Bias

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  58. @nmeans

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  59. Three Mile Island Unit 2
    @nmeans

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  60. Three Mile Island Unit 2
    @nmeans

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  61. Pressurizer
    @nmeans
    Connection to Primary
    Cooling Loop
    Heating Element
    Water Spray
    1. Maintains System Pressure
    2. Measures Water Level
    3. Absorbs Pressure Shocks

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  62. @nmeans

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  63. Heat at 100% 12 MWth 2,841 MWth
    Heat at Shutdown

    (6.5%)
    0.78 MWth 185 MWth
    @nmeans

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  64. Three Mile Island Unit 2
    @nmeans

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  65. Three Mile Island Unit 2
    Three Mile Island Unit 2
    @nmeans

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  66. @nmeans

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  67. Three Mile Island Unit 2
    @nmeans • #WhoDestroyedTMI
    Three Mile Island Unit 2
    @nmeans

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  68. @nmeans

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  69. @nmeans

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  70. @nmeans

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  71. @nmeans

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  72. @nmeans
    Human error is never the cause.

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  73. @nmeans
    Ask what is responsible,
    not who.

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  74. @nmeans
    Understand why it made sense.

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  75. @nmeans
    Seek forward accountability,
    not backward.

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  76. @nmeans
    Always look for the second story.

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  77. Who Destroyed
    Nickolas Means
    @nmeans

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  78. Who What Destroyed
    Nickolas Means
    @nmeans

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  79. @nmeans

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  80. @nmeans

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  81. Who What Destroyed
    Nickolas Means
    @nmeans

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