Problem $3.(5$ points$)$

Below are the data for a process in which energy integration is desired.

The following auxiliary systems are available:

It is requested:

a$)$ Calculate the energy cascade, for a $T_{\text{m}\text{i}\text{n}}$ of $10K(2\mathrm{.}5$ points$).$

b$)$ Plot the individual composite curves, the global composite curve, and the individual

composite curves including the auxiliary systems $(2\mathrm{.}5$ points$).$