زد فایل

مرجع دانلود فایل ,تحقیق , پروژه , پایان نامه , فایل فلش گوشی

زد فایل

مرجع دانلود فایل ,تحقیق , پروژه , پایان نامه , فایل فلش گوشی

BP Process Safety Series Hazards of Trapped Pressure and Vacuum, 2009

اختصاصی از زد فایل BP Process Safety Series Hazards of Trapped Pressure and Vacuum, 2009 دانلود با لینک مستقیم و پر سرعت .

100 صفحه pdf

BP Process Safety Series Hazards of Trapped Pressure and Vacuum, 2009

A collection of booklets describing hazards and
how to manage them

سرفصلها:

1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
1.1 Theory of pressure and vacuum . . . . . . . . . . . . . . . . . . . . . . . . . 2
1.2 Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.3 Different units of pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.4 Absolute pressure vs. gauge pressure . . . . . . . . . . . . . . . . . . . . 5
1.5 The behaviour of gas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.6 Pressure-force relationship . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
1.7 Compressed air . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
1.8 Hydraulic and pneumatic systems . . . . . . . . . . . . . . . . . . . . . . . 12
1.9 Identification of trapped pressure and unexpected
vacuum hazards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
1.10 Sources of trapped pressure and vacuum . . . . . . . . . . . . . . . . . 14
2 Hazards of trapped pressure . . . . . . . . . . . . . . . . . . . . . . . . . 15
2.1 Breaking containment under pressure . . . . . . . . . . . . . . . . . . . . 15
2.2 Storage tanks are fragile vessels . . . . . . . . . . . . . . . . . . . . . . . . 19
2.3 Blocked/choked/isolated safety valves, vents and drains . . . . . . 25
2.4 Hydraulic legs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
2.5 Trapped pressure in pigging operations . . . . . . . . . . . . . . . . . . . 38
2.6 Thermal expansion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
2.7 Ice or hydrate formation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
2.8 Leak and pressure testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
2.9 Hydrostatic testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
2.10 Work permits and isolation certificates . . . . . . . . . . . . . . . . . . . . 62
2.11 Trapped pressure underneath catalyst crust . . . . . . . . . . . . . . . 63
2.12 Trapped pressure in a fire . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
2.13 Utility/process connections and flexible hoses . . . . . . . . . . . . . . 66
2.14 General advice and safe practices . . . . . . . . . . . . . . . . . . . . . . . 71
3 Hazards of vacuum . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
3.1 Ignorance of hazards of ambient pressure . . . . . . . . . . . . . . . . 75
3.2 Blocked/choked/isolated vents and drains . . . . . . . . . . . . . . . . . 77
3.3 Steam condensation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
3.4 Ammonia dissolved in water . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
3.5 Management of change . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
3.6 Can your vessels deal with vacuum? . . . . . . . . . . . . . . . . . . . . . 85
4 Points to remember . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
Short bibliography for regulations and norms . . . . . . . . . . . 91
Test yourself! . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
Acronyms and abbreviations . . . . . . . . . . . . . . . . . . . . . . . . 95


دانلود با لینک مستقیم


BP Process Safety Series Hazards of Trapped Pressure and Vacuum, 2009

Rapid Depressurization of Pressure Vessels

اختصاصی از زد فایل Rapid Depressurization of Pressure Vessels دانلود با لینک مستقیم و پر سرعت .

Rapid Depressurization of Pressure Vessels


Rapid Depressurization of Pressure Vessels Afzal Haque, Stephen Richardson,Graham Savill and Geoffrey Chamberlain
Department of chemical Engineering, Imperical College, London
Journal of Loss Prevention, Jan 1990

دانلود با لینک مستقیم


Rapid Depressurization of Pressure Vessels