Doublepipe Heat Exchanger

Which statement(s) are true?

• Heat is transferred from the hot to the cold fluid

• the change in  $c_p$  with temperature has to be considered

•  $P_1$  and  $P_2$  are the same if the heat capacity flow ist the same

Which flow regime is shown in the picture (look at arrows)

• Co-Current flow

• Counter-Current flow

• Other

 $9.62\ \frac{dm^3}{\min}$  is _____

•  $9.62\ \frac{l}{\min}$  

•  $9.62\ \frac{l}{s}$  

•  $9.62\ \frac{l}{h}$  

•  $0.962\ \frac{l}{\min}$  

Which heat capacity flow is bigger?

• Fluid 1 (Hot Fluid)

• Fluid 2 (Cold Fluid)

• None (they are the same)

Which fluid transfer significantly more heat?

• Fluid 1 (Hot Fluid)

• Fluid 2 (Cold Fluid)

• None (they transfer the same amout of heat)

Which statement(s) are true?

• The flow regime is co-current

• $m_{cold}^.\cdot cp_{cold}<m_{hot}^.\cdot cp_{hot}$

• $P_{cold\ }<\ P_{hot}$

• $P_{cold}=\ P_{hot}$