A stream of methane $(C{H}_4,C_p=4R)$ flowing at $3\mathrm{.}0$kmo$\frac{l}{m}in$ is isobarically heated in a well$-$insulated heat exchanger from

$30\mathrm{.}00C$ to $155C.$ The second side of the exchanger is fed with saturated water vapor, which is isobarically cooled to a

saturated liquid when it leaves. As unit operator, you have the choice of feeding high$-$pressure steam $($HPS$)$ at $4\mathrm{.}00$MPa or

medium pressure steam $($MPS$)$ at $1\mathrm{.}00$MPa. Assume $T_{\text{s}\text{u}\text{r}\text{r}}=27C.$

Find the mass flow rate of water and lost work if high pressure steam $($HPS$)$ is used.

mass flow rate:

$k\frac{g}{s}$ lost work:

$kW$

Find the mass flow rate of water and lost work if medium pressure steam $($MPS$)$ is used.

mass flow rate:

$k\frac{g}{s}$

lost work:

$kW$