Question

A 350 gal air storage tank is initially at 100 psig. For how long can the tank supply 30 cfm of air to a machine that requires at least 80 psig to operate?

Answer 1

Answer:

93.8 sec

Explanation:

it is given that tab has 350 gallon

we know that 1 gallon = 0.134 cubic foot

350 gallon = 350×0.134=46.9 cubic foot

the delivery pressure is 100 psi which is greater than 80 psi to operate machine

it is given that supply volume is 30 cubic foot per minute

=   $\frac{30}{60}=0.5$ $ft^{3}/sec$

$time\ required\ =\frac{tab\ air }{supply\ volume}$

$time\ required\=  [tex]\frac{46.9}{0.5}$

=93.8 sec