A company is considering installing a vessel containing 1000

A company is considering installing a vessel containing 1000 kg of propane. One possible site is located 100m from a residential area. What overpressure (in kpa) can be expected in the residential area due to sudden failure of the vessel followed by a vapor cloud explosion? What type of damage is expected from this overpressure? Assume explosion efficiency.

Solution

Step 1

Divide the net explosive mass by the volume of the area to be drilled or impacted by the explosion.

Step 2

Multiply the result by the exponent of 0.72.

Step 3

Multiply the result by 2,410, a constant based on 1 bar or 100 kPa being equal to 14.51 pounds per square inch of pressure. The result is delta(p), or the difference in pressure.