AIS Failure Investigations


Reported Accidents for Boilers, Pressure Vessels, and Turbines Laboratory Services *24-hours emergency accident service call*	*AIS* Accident Investigations and Forensic Engineering If you have an industrial accident like an explosion or equipment damage can you afford a reoccurrence. We did not think so. Our staff experts can help you get to the cause of the failure. AIS specializes in explosions, wreckage, electric arcing damage, equipment failure, and accident investigations on- Boilers, Pressure Vessels, and Piping Tanks [Petroleum and Chemical] Turbines [Steam and Water], Presses, and Rotating Machinery Electric Power Equipment, Transformers, Electrical Distribution Equipment, Generators, and Motors Investigation services can include *Field failure analysis* *Investigation to find the facts* *Reconstruction of the failure* *Accident investigations* *Expert Witnessing*

Explosion of Pressure Vessel by Gas: TNT Equivalent [kg]

The results are approximate. This calculations are only based on gases in a pressure vessel and NOT on tanks or pressure vessels which have liquids. The usage of this program on liquids WILL BE SIGNIFICANTLY wrong. An Investigating Specialist [Engineer/Chemist] or Risk Engineer is needs to be consulted in all cases. This is for information only.

Operating Pressure, MAWP

or Test Pressure
MPa

Convert psi to Pa

Example:

150 psi x 0.00689= 1.03MPa

Volume of Pressure Vessel

m³

Convert cubic Feet to m³

Example

150ft³ x 0.02831 = 4.2365 m³

Atmospheric Pressure outside Pressure Vessel

MPa

Ratio of Specific Heat or Gas inside of Pressure Vessel

Specific Heat Ratios

H₂ = 1.41

CH₄ = 1.31

O₂ = 1.40

N₂ = 1.40

Propane= 1.31

Steam = 1.33

Acetylene = 1.24

Natural Gas = 1.27

Butane = 1.09

TNT [kg]

TNT [pounds]