Consider sugarcane bagasse with the following composition: $C=44\mathrm{.}4\%$;$H=6\mathrm{.}3\%,O=38\mathrm{.}7\%$;Ash$=10\mathrm{.}6\%$ on a

dry basis. If the bagasse has a moisture content on a wet basis of $50\%,$ determine:

a$)$ The theoretical air mass $($stoichiometric$)$ to burn $1$ kg of wet bagasse $($work basis$)$

b$)$ Assuming that $97\%$ of the C available in bagasse reacts to COtwoand the remaining $3\%$ reacts to CO$,$ determine

the air coefficient $($lambda$)$ and the excess air if the concentration of O twoin dry gases it is $4\mathrm{.}5\%$

c$)$ Assume the calorific value of bagasse on a dry basis $($PCSb$.$s$.)$ at $18M\frac{J}{k}g.$ Determine the net calorific

value on a wet basis.

d$)$ The bagasse $($wet$)$ is burned in a water tube boiler to produce steam. The thermal efficiency of the

boiler is $85\%.$ Steam is generated at $350C$ and $50$ bar $,$ while feed water conditions can be assumed at

$50$ bar and $120C.$ Determine the mass flow rate of steam produced if the bagasse feed rate into the

boiler is $30\frac{t}{h}$