For the engine of Problem $1,$ the energy escaping from the engine in the exhaust

products plus that leaving with the cooling water in the radiator equals

$2\mathrm{.}7{10}^{6}BT\frac{U}{h}r.($Recall that energy leaves via the driveshaft at the rate of $750$

horsepower.$)$ The energy input with the natural gas is $20,500BT\frac{U}{l}bm.$ The

only other energy transport is that leaving the engine block and other parts by

radiation and convection.

a$)$ Assuming that the process is steady, how much energy leaves this way?

b$)$ Why is there no exergy transport with this energy transport?