Problem $05\mathrm{.}053$E $-$ Turbine flow

Steam flows steadily through a turbine at a rate of $45000lb\frac{m}{h},$ entering at $1000$ psia and $900F$ and leaving at $5$ psia as saturated

vapor. If the power generated by the turbine is $4\mathrm{.}050$ MW $,$ determine the rate of heat loss from the steam. The enthalpies are

$h_1=1448\mathrm{.}6Bt\frac{u}{l}bm$ and $h_2=1130\mathrm{.}7Bt\frac{u}{l}bm.($Round the final answer to three decimal places.$)$

The rate of heat loss from the steam is

Btu$/$s$.$