$($a$)$ Mention advantiges of process contral.

and tark holdup volume is $V^m.$ Develop the transient model of the system and find the

following:

$($i$).$ Lest dititusbance transfer function ot the system;

$($ii$)$ Response of the iemperature for a proponional control and siketeh of the dynamis

response to the load disturiamees

$($iii$)$ Response of the temperature for at stup chante in the load tlisturbnace and sketeh of the

Qnicstani $2$

f$14$: Maris!?

$\{5$ Maris$\})$

$($b$)$ The fevel of a stirred tank reactor is maintained usiag a precumutio valve fitlet at thr outlet

sircam.

$($i$)$ Sketeh and indicate ail forces responsible for the operation of the presumatic vaive.

$($ii$)$ Determinc load transfier function for the valve under a ramping forcing function.

Qticstian $3$

$(5)$ State the gencral exprossion forcing functions tiat enfores some distutbance during dynamic

'opcration of a process:

$($i$)$ Step change

$[3$ Marts$]$

$($ii$)$ Ram $?$

$($ii$)$Sinusoidal functions

$($b$)$ A first order series reaction $ABC$ teltes place in a tank reactor arranged with a

constant holdup volume maintained at $80-100C$ througheyt the reaction time. The product $C$

is maximized at $90C$ and product $B$ js negligibie al the retetor outlet. Given that, the intial

conecntration of $A$ is $C_{n}mo\frac{l}{m^3}$ and flowrate is $\frac{U_{m^3}}{h}r$ under transient operation of the

restictor.

$($i$)$ Develop a dynamic model of tha sactors sysiem

$($ii$)$ Deternine the response wien the litisi concentration: of A changes as a unit etep.