Problem $05\mathrm{.}014-$ Mass flow rate

Water enters the constant $130-$mm inside$-$diameter tubes of

a boiler at $7$ MPa and $65\backslash$deg C and leaves the tubes at $6$ MPa

and $450\backslash$deg C with a velocity of $84($m$)/($s$).$ Calculate the velocity of

the water at the tube inlet and the inlet volume flow rate.

The specific volumes of water at the inlet and exit are

$0\mathrm{.}001017($m$^(3))/($k$)$g and $0\mathrm{.}05217($m$^(3))/($k$)$g$.($Round the final

answers to three decimal places.$)$

The velocity of the water at the tube inlet is

$($m$)/($s$).$

The inlet volume flow rate is

$($m$^(3))/($s$)$