Next, insert a Short pipe Scenario, name it Line rupture, liquid, and then edit it and set the values as follows:

The Release height from vessel bottom field is not included in the input data for a Short pipe Scenario, which means that the program is not able to calculate the release phase, and you must use the Phase to be released field to specify whether you want to model a release from the liquid side or the vapour side.

Run the consequence calculations for the Short pipe and view the results

In the Home tab of the Ribbon Bar, change the Mode back to Consequence.

Select the Short pipe Scenario and select Run. When the calculations are complete, view the graphs for all of the Weathers.

You will see that there is a Pool Vaporisation tab in the Graphs View, which means that the liquid in the release rained out. If you view the reports and look at the Commentary Report, you will see that rainout fraction is about 0.7 for all three Weathers, and the formation and behaviour of the pool will have an effect on the dispersion and on the toxic effects.

In the Toxic Lethality graph, the greatest effect distances are for the F 1.5 m/s weather outdoors, with a distance of 1 km to a lethality level of 10%, which is approximately a third of the distance reached by the catastrophic rupture. The least stable condition, D 5 m/s, reaches only about 300 m for 10% lethality outdoors.

If you open a GIS Results View for all three Weathers and view the Toxic Outdoor Lethality Footprint, you will see that the effects for 0.1% lethality do not reach the village or the town.