
190 Green Chemical Engineering
iii. Design of non-isothermal CSTR: The schematic diagram of a non-isothermal CSTR
is shown in Figure 3.33.
Heat is added to the reactor at a rate Q by passing the hot uid through the
jacket. T
j
is the temperature of the hot uid in the jacket. A
j
is the jacket area across
which heat is transferred. The net heat balance equation for the CSTR is
qC TQ HqCx qC T
pO RAOA
f
+
+−
=
+
∆ ()0
(3.239)
Rearranging this equation, we get
TT
HC
C
x
Q
qC
fO
RAO
p
Af
p
=+
−
+
∆
(3.240)
The net rate of heat transferred to the reactor Q is
QUAT T
jj f
(3.241)
where U is the overall heat transfer coefcient. ...