The fuel source has been

identified as coal due to its availability. Using the information at your disposal, including the

initial capital of R $172$ million, the proposed power plant design must have pressure limits of $15$

MPa and $0\mathrm{.}005$ MPa. The fuel burning rate of the plant is estimated at $6250$ kg$/$h$.$

The boiler$$s steam generating capacity must be $100$ t$/$h$.$ With a mollier diagram, find all

parameters to be used. All mollier diagrams must be attached to the report, clearly showing all

markings, points, and values. The intake air is to be fed at $75$ tonnes per hour, and the burnt coal

has an LCV of $102$ MJ$/$kg$.$ A comparative analysis of the rate of heat in each boiler component,

equivalent evaporation, and thermal efficiency with a superheater operated at $700$oC when:

$1)$ No economiser, feedwater at room temperature of $25$oC$.$ No preheater. Air enters at

ambient conditions, assuming a suitable specific heat capacity.

$2)$ Economiser and air preheater integrated; feedwater increased by $195$

oC in the

economiser. Intake air increased by $255$oC$,$ assuming an appropriate specific capacity

of flue gases