Volume of the free space = ullage= (volume of the free space)/(area)
= (164/ 400)m
=0.41m.
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A rectangular tank has a total depth of 21m and volume 10250m3 which include a trunkway of trunkway of depth 1m and volume 250m3. Oil of RD 0.9 is to be loaded for expansion. find the mass of oil to be loaded and the final ullage.
Given :
Total depth of the tank =21m
Total volume of the tank =10250m3
RD =0.9
According to question , Space left for expansion is
=(3% of the volume of the oil)
Let ‘v’ be the volume of the oil
3 /100 x v = volume of free space
(Volume of free space) + (volume of oil) = (volume of tank)
( 3/100 x v + v ) = 10250m3
(3v /100 + v) = 10250m3
(103v /100) = 10250m3
V = (10250×100 /103)
= 9951.456m3
Volume of the free space = (10000 -9951.456) m3
= 48.544m3
Depth of the free space = (volume / area )
= (48.544 /500)
= 0.0970m
In question no 7, how did area 800 come…?
Volume of cylinder is pie X r X r X h
you are right
In Q9 I found ullage by subtracting
Total depth – Depth of oil
I got 0.21m but by using your method answer is coming correct..can you please explain me?
Got its!!
It’s very helpful for me ..thank you sir
Fantastic innovation
In Q8 area of tank should be 1000m2 not 10000m2