Final Ex$$m

A$/$C Technology

Q$1$: A space has a calculated heating load of $35$ KW $.$ The heating degree days baned on is$.3"$C balance point temperature are $3020.$ The inside and outside design temperatures are $22$ and $1C,$ respectively. Calculate the followings:

a$.$ The theoretical heating energy requirements.

$(10$ Points$)$

b$.$ Cost of heating energy if a heat pump is used if the scasonal energy efficiency ratio $($SEPR$)$ is $3\mathrm{.}5$ W$/$W$,$ the electricity cost rate is $0\mathrm{.}1J\frac{D}{k}Wh.$

c$.$ Cost of heating energy if a diesel fuel boiler is used with $85\%$ efficiency. The heating value of diesel fuel is $40,000K\frac{J}{k}g.$ its specific gravity is $0\mathrm{.}85$ and the price per liter is $0\mathrm{.}8$ JD $.$