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xiii | |
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xvii | |
Acknowledgements |
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xix | |
Glossary |
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xxi | |
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1 | (20) |
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4 | (1) |
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1.2 Building Siting Evaluation Process |
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5 | (1) |
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1.3 Selection of Approach |
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6 | (1) |
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6 | (4) |
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1.4.1 Flixborough, UK: Vapor Cloud Explosion in Chemical Plant |
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8 | (2) |
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1.5 Phillips, Pasadena, Texas USA: Propylene HDPE Unit VCE and BLEVEs |
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10 | (8) |
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1.5.1 BP, Texas City, Texas USA: Discharge from Atmospheric Vent Resulting in a VCE |
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13 | (2) |
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1.5.2 Hickson & Welch Ltd, Castleford, UK: Jet Fire |
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15 | (3) |
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1.6 Evolution of Design and Siting Practices for Buildings in Process Plants |
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18 | (2) |
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1.6.1 Brief History of Building Designs |
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18 | (1) |
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1.6.2 Standards for Building and Equipment Siting and Separation |
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19 | (1) |
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1.6.3 Standards and Criteria for Building Design, and the Need for Site-Specific Evaluation |
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19 | (1) |
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1.7 Organization of the Book |
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20 | (1) |
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21 | (10) |
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21 | (6) |
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2.1.1 Explosion, Fire and Toxic Release Phenomena |
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21 | (4) |
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2.1.2 Statement of the Problem |
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25 | (1) |
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2.1.3 Analysis Approach Selection |
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25 | (1) |
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2.1.4 Steps in the Process |
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26 | (1) |
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2.2 Management Responsibilities under API RP-752 and API RP-753 |
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27 | (4) |
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2.2.1 Meeting Expectations -- Management's Role in the Process |
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27 | (1) |
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2.2.2 Maintaining the Process |
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28 | (3) |
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3 Determining The Scope Of The Building Siting Evaluation |
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31 | (14) |
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31 | (1) |
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31 | (5) |
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3.2.1 Buildings Intended for Occupancy |
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31 | (2) |
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3.2.2 Buildings That May be Excluded from the Siting Study |
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33 | (3) |
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3.2.3 Buildings Evaluated on a Case-by-Case Basis |
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36 | (1) |
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36 | (9) |
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3.3.1 Consequence-based Scenario Selection |
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38 | (2) |
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3.3.2 Risk-based Scenario Selection |
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40 | (1) |
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3.3.3 Explosion Scenarios |
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41 | (1) |
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42 | (2) |
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44 | (1) |
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4 Building Siting Evaluation Criteria |
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45 | (26) |
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45 | (1) |
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4.2 Occupant Vulnerability |
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46 | (2) |
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4.3 Criteria for Existing Buildings Exposed to Explosion Hazards |
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48 | (10) |
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4.3.1 Building Exposure Criteria for Explosion |
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48 | (1) |
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4.3.2 Building Consequence (Damage) Criteria |
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48 | (10) |
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58 | (4) |
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4.4.1 Spacing Table Approach |
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58 | (1) |
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4.4.2 Building Exposure Criteria for Fire |
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58 | (2) |
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4.4.3 Fire Criteria Based on Occupant Vulnerability |
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60 | (1) |
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61 | (1) |
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4.5 Criteria for Toxic Exposures |
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62 | (2) |
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4.5.1 Criteria Based on Presence of a Toxic Cloud |
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62 | (1) |
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4.5.2 Toxic Criteria Based on Occupant Exposure |
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63 | (1) |
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4.6 Criteria for Building Upgrades and New Buildings |
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64 | (1) |
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65 | (6) |
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4.7.1 Use of Individual Risk Measures |
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65 | (2) |
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4.7.2 Use of Societal and Aggregate Risk Measures |
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67 | (4) |
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71 | (22) |
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71 | (1) |
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5.2 Select Explosion Approach |
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72 | (2) |
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5.2.1 Evaluation of Existing Buildings |
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73 | (1) |
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5.2.2 Siting and Design of New Buildings |
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74 | (1) |
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5.3 Modeling and Quantifying and Explosion Hazards |
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74 | (4) |
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5.3.1 Vapor Cloud Explosions (VCEs) |
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74 | (2) |
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5.3.2 Pressure Vessel Burst |
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76 | (1) |
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5.3.3 Boiling Liquid Expanding Vapor Explosions (BLEVEs) |
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77 | (1) |
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5.3.4 Condensed Phase Explosions |
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77 | (1) |
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5.4 Building Response to Explosion Hazards |
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78 | (12) |
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78 | (1) |
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5.4.2 Building Damage Levels (BDLs) |
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79 | (1) |
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5.4.3 Component Damage Levels |
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80 | (2) |
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82 | (7) |
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5.4.5 Identifying Limiting Factors |
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89 | (1) |
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5.5 Occupant Vulnerability to Explosion Hazards |
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90 | (1) |
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5.6 Actions Required at the Completion of the Evaluation |
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90 | (3) |
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5.6.1 Results That Meet Criteria |
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90 | (1) |
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5.6.2 Results That Do Not Meet Criteria |
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91 | (2) |
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6 Fire Hazards Assessment |
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93 | (16) |
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93 | (4) |
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6.1.1 Overview of Fire Phenomena and Sources of Information |
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93 | (2) |
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6.1.2 Overview of Assessment of Fires in a Building Siting Evaluation |
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95 | (2) |
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6.2 Determining if a Fire Hazard Exists |
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97 | (1) |
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6.3 Spacing Table Approach |
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97 | (2) |
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6.4 Performing a Consequence-Based or Risk-Based Building Siting Evaluation for Fire |
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99 | (6) |
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6.4.1 Modeling and Quantifying Fire Hazards |
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101 | (1) |
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6.4.2 Building Response to Fire Hazards |
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102 | (1) |
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6.4.3 Calculation of Internal Temperature Risk |
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103 | (2) |
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6.5 Occupant Response to Fire Hazards |
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105 | (1) |
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6.5.1 Relevance of Training and Drills -- Human Reactions |
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106 | (1) |
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6.6 Defining the Fire Protection Concept |
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106 | (3) |
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6.6.1 Evacuation Considerations |
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106 | (2) |
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6.6.2 Impact to Operations |
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108 | (1) |
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7 Toxic Hazards Assessment |
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109 | (16) |
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109 | (1) |
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7.2 Determining If a Toxic Hazard Exists |
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109 | (2) |
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7.3 Building Siting Evaluation for Toxics |
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111 | (9) |
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7.3.1 Modeling and Quantifying Toxic Hazards |
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113 | (4) |
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7.3.2 Building Design for Occupant Protection from Toxics |
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117 | (3) |
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7.4 Defining the Toxic Protection Concept |
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120 | (1) |
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7.4.1 Strategy for Building Design and Occupancy |
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120 | (1) |
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7.4.2 Selection of Strategy to Implement |
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120 | (1) |
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7.5 Evacuation vs. Sheltering-In-Place |
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120 | (5) |
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7.5.1 Attributes of Shelter-in-Place Strategy |
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120 | (2) |
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7.5.2 Attributes of Evacuation Strategy |
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122 | (1) |
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7.5.3 Strategy for Leak Detection |
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122 | (3) |
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8 Frequency And Probability Assessment |
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125 | (26) |
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125 | (2) |
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8.2 Developing a Scenario List |
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127 | (2) |
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8.2.1 Individual Source Based Approach |
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127 | (1) |
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8.2.2 Scenario Outcome Based Approach |
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128 | (1) |
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8.3 Calculation of Frequency of Initiating Event or Accident |
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129 | (15) |
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8.3.1 Use of Company Historical Data |
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129 | (1) |
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8.3.2 Use of Historical Industry (Generic) Data |
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130 | (3) |
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8.3.3 Prediction by Quantifying Contributing Causes |
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133 | (5) |
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8.3.4 Factors that May Indicate Failure Rates Different than Standard Values |
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138 | (2) |
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8.3.5 Data Modification Methods |
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140 | (3) |
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8.3.6 Risk-Based Inspection |
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143 | (1) |
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8.3.7 Elimination of Failure Classes |
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143 | (1) |
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8.3.8 Interference Between Frequency Modification Methods |
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144 | (1) |
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8.4 Probability and Frequency of Final Outcomes |
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144 | (5) |
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144 | (1) |
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8.4.2 Quantification of an Event Tree |
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145 | (4) |
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8.5 Unit-Based Outcome Frequencies |
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149 | (2) |
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151 | (20) |
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151 | (3) |
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9.1.1 Scope of Risk in This Book |
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151 | (1) |
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9.1.2 Definition of Risk in This Book |
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152 | (1) |
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9.1.3 Qualitative Versus Quantitative Risk Assessment |
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153 | (1) |
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154 | (4) |
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9.2.1 Common Risk Measures |
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154 | (2) |
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9.2.2 Alternative Risk Types |
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156 | (1) |
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9.2.3 Summary of Risk Types |
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157 | (1) |
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158 | (11) |
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158 | (1) |
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9.3.2 Calculating Individual Risk |
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159 | (2) |
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9.3.3 Calculating Aggregate Risk |
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161 | (8) |
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9.4 Interpretation and Use of Risk Measures |
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169 | (2) |
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10 Mitigation Plans And Ongoing Risk Management |
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171 | (14) |
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10.1 Development of Mitigation Plans |
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171 | (6) |
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10.1.1 Selection of Mitigation Measures |
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171 | (4) |
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10.1.2 Mitigation Schedule |
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175 | (1) |
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176 | (1) |
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10.2 Building Modifications |
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177 | (8) |
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10.2.1 Structural Strengthening to Increase Protection from Explosion Hazards |
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177 | (4) |
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10.2.2 Structural Modifications to Mitigate Fire Hazards |
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181 | (1) |
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10.2.3 Structural Modifications to Mitigate Toxic Hazards |
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181 | (4) |
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11 Managing The Building Siting Process |
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185 | (16) |
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11.1 Management of Change |
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185 | (2) |
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11.1.1 Managing the Occupancy of the Building |
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185 | (2) |
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11.2 Documentation Requirements |
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187 | (1) |
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11.2.1 Building Siting Procedure |
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187 | (1) |
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188 | (1) |
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11.3 Documentation of Mitigation Systems Criteria and Performance |
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188 | (1) |
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11.3.1 Documentation of Mitigation Actions |
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188 | (1) |
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11.4 Maintaining Documentation "EverGreen" |
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189 | (12) |
Index |
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201 | |