An inorganic liquid required for a steel

shaft is required to cool river water with

a flow rate of $5500ga\frac{l}{h}$ from $120C$ to

$80C$ with a flow rate of $114$ tons per hour.

Since the liquid is relatively acidic, an alloy

heat exchanger will be used. The boiler

side of the $1-2$ pass shell and tube heat

exchanger is made of mild steel and the

tube side is made of $304$ type stainless

steel. The diameter of the boiler is $30$

inches and the number of $1"14$ BWG copper

tubes is $140.$ The length of the tubes is

$16ft$ and they are arranged in $1\mathrm{.}25$ square

inches. The gap between the pipes is $5$

inches. Is this heat exchanger suitable for

cooling? Prove it by making the necessary

calculations.