QUESTION $2$

Consider a double pipe heat exchanger shown in Figure $1.$ The basic control objective of the heat exchanger is to maintain the fluid exit temperature of $88C$ in the presence of disturbances.

Figure $1$: Double pipe Heat Exchanger

$2\mathrm{.}1$ Construct a feedback and feedforward control configurations that will satisfy the control objective in the presence of disturbances.

$2$

$2\mathrm{.}2$ Identify any two $(2)$ external disturbances that might affect the operation of the heat exchanger.

$[16$ Marks$]$