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7

Chemical

Case Study

Innovative Approach for Process Selection and Tank Design
to maximise Storage Capacity with Limited Plot Area

Optimised Tank Design for
Maximum Storage

The plot area was very small (220 X 130 = 30000
sq. m) and the requirement was to maximise the
storage capacity of the terminal by installing heat reflection capabilities which reduces the
30 tanks of various diameters along with other evaporation of the product stored and hence
facilities. The conventional internal floating roof lowers emission losses. The storage tank heights
would result in a loss of around 1 to 1.5 m height normally in the region were 25 m max. All the
of tank and hence reduced storage capacity. 30 tanks were designed with height of 27 m
instead of usual 25 m height. With this the
Solution: By suggesting Aluminium internal volume is further enhanced.
floating roofs the height of the roof would be
reduced to 350 mm from 500 mm. Through this Following are the benefits due to the value
value addition, the net increase in the storage addition proposed:
volume is around 6000 m , which is equivalent 1. Ground improvement cost savings
3
to one tank of 17 m dia X 27 m ht. 2. Foundation cost savings
3. Tank material and labour cost
Intangible benefits like periodic painting can 4. Aluminium floating roof and dome roof cost
be avoided for the floating and dome roofs and painting cost
can be avoided. Aluminium has excellent

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