Gas-filled vessels

Inert, Ideal Gas-Filled Vessels The energy available for external work following the rapid disintegration of the vessel is calcuJated by assuming that the gas within the vessel expands adiabatically to atmospheric pressure. 

A vessel filled with a pressurized, superheated liquid can produce blasts upon bursting in three ways. First, the vapor that is usually present above the liquid can generate a blast, as from a gas-filled vessel. Second, the liquid will boil upon depressurization, and, if rapid boiling occurs, a blast wiU result. Third, if the fluid is combustible and the BLEVE is not fire induced, a vapor cloud explosion may occur (see Section 4.3.3.). In this subsection, only the first and second types of blast wiU be investigated. 

Initial Fragment Velocity for Ideal-Gas-Filled Vessels... 

In addition to shock wave effects, a major hazard of a ruptured gas-filled vessel is from projectiles. To estimate damage from projectiles, both the initial velocity and the range are required. A simplified method for calculating the initial velocity uses the following equation 43... 

A physical explosion relates to the catastrophic rupture of a pressurized gas filled vessel. Rupture could occur for the following reasons ... 

FIGURE 3.13. Scaled overpressure curve for rupture of a gas-filled vessel for the basic method. 

FIGURE 3.19. Logic diagram for the calculation of projectile effects for rupture of pressurized gas-filled vessels. 

Physical explosion The catastrophic rupture of a pressurized gas-filled vessel. 

In addition to shock wave effects, a major hazard of a ruptured gas-filled vessel is from... 

PRACTICE EXAMPLE A The same glass vessel used in Example 6-7 is filled with an unknown gas at 772 mmHg and 22.4 °C. The gas-filled vessel weighs 40.4868 g. What is the molar mass of the gas ... 

The general guidelines outlined in API RP 521 [2] should be followed for the design of protechon against fire. Both liquid- and gas-filled vessels are to be analyzed for protection against fire. For liquid wet vessels, the required... 

Heat input to a vessel containing only gas is different from a liquid wet vessel, and the following procedure is normally used to design pressure protection of a gas-filled vessel ... 

---