Tasks for self-training. Initial data for calculations
Tasks for self-training
It is necessary to calculate the scales of the zones of ES in case the explosion of tanks with flammable liquids. The calculation will be carried out for the tank farm of the flammable liquids storage, which is used to supply to the chemical plant. In the tank farm are installed N tanks for receiving and storing liquids, with a volume of V m3 each. The density of the population in this area is (1+0.1·n) thousand people per km2.
Physicochemical properties of flammable liquids and other initial data for calculation are given in the table 6.5. It is necessary to determine the radiuses and characteristics of the ES zones during the explosion (excessive pressure in each zones of ES, fireball burning time, intensity of heat radiation heat impulse) and to assess the damaging impact of shock waves on people and objects if the shop with a light metal frame is located at a distance of 400 m from the storage site.
Table 6.5
Initial data for calculations
№ opt
Type
of flammable liquids (fuel)
Density, kg/m3
Specific heat of fire Q0, kJ/m2·s
Volume of tank V, m3
Number of tanks N
Petrol
15+n
n+1
Kerosene
Acetone
Fuel oil
Methyl alcohol
Petrol
25+n
n
Kerosene
Acetone
Fuel oil
Methyl alcohol
Petrol
30+n
n–9
Kerosene
Acetone
Fuel oil
Methyl alcohol
Petrol
35+n
n–13
Kerosene
Acetone
Fuel oil
Methyl alcohol
Petrol
40+n
n–19
Kerosene
Acetone
Fuel oil
Methyl alcohol
Petrol
45+n
n–25
Kerosene
Acetone
Fuel oil
Methyl alcohol
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