The tubes in an oil cooler are 25 mm OD and 2.5 m long and are so mounted that the centres of any 3 adjacent tubes form an equilateral triangle of 40 mm side. There are 150 such triangles. Water is pumped between tubes in a lengthwise direction at 3 m/s.
(a) the water flow rate
(b) the power required to overcome friction if f = 0.01.
The question belongs to Chemistry and it discusses about calculating the flow rate and the power required to overcome friction in a pipe line. This has been discussed in the solution detail.
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