fuel oil with a density of $800$ kg$/$m$3$ is combusted in a burner

Following information is given:

$-0\mathrm{.}05$ m$-\%$ of the carbon was left unburnt

$-$The FFR $($fuel feed rate$)$ is $45$ Liters$/$hour

$-$ The humidity of the combustion air is $0\mathrm{.}50$ vol$-\%$

Mass fractions $(\%)$of the fuel are as follows:

C $=84\mathrm{.}38,$ H $=14\mathrm{.}50,$ S $=0\mathrm{.}06,$ N $=0\mathrm{.}2,$ O $=0,80,$ H$2$O $=0\mathrm{.}05,$ ash $=0\mathrm{.}01$

Exercise $1.$ show the feed rate of the combustion air $($m$3/$h$)$ and flow rate of flue gases $($m$3/$h$).$

Exercise $2.$ calculate dry flue gas composition.