Simulating a double pipe heat exchanger dynamically in Python (Part 2: Simulation in Python)

In this video lecture, we dynamically simulate heat transfer in a doulbe pipe (a.k.a. concentric tube) heat exchanger. The simulation shows both temporal and spatial fluctuations in temperature in both fluids. See how these equations are derived here ( • Simulating a double pi... ).

[@AdityaPillai009]

Very well explained and simulated. Thank you for sharing this.

[@Anu9206]

That was so easy to understand, Thanks for sharing this. Can you please hare the equations for the double pipe counter flow heat exchangers.....Thanks in advance.

[@coleeto2]

Very well expalined, thank you very much!!

[@ragder13]

great video, but plt.clf() is not working properly when using code in a different IDE other than Spyder

[@catherineblack2692]

do you have a similar video for steady state ?

[@afrazmehmood7460]

Excellent effort

[@MikeKay1978]

What about is the liquids have different fluid velocity?

[@decarbonization]

raws 52 and 53: I believe instead of r1 there should be r2

[@leoduchateau372]

Could you please explain me the difference in meaning between T1i (or T2i) and T[0]? I really don't get it.

[@AdityaPillai009]

If you're still wondering, T1i would be the temperature of fluid 1 just before it enters the pipe of the heat exchanger, whereas T1[0] would be the first node inside the pipe we are simulating that has to receive the flow at T1i. Atleast, thats how I understood it. Hope this helps.

[@berilobr]

hey, sorry to bother! Do you have that simulation but for
countercurrent? Thanks!

[@kodymerlin1]

I don't have a video of it, but can send you code if you provide an email address. I used the countercurrent as a class assignment, so don't want to give away the solution publicly.

[@berilobr]

@@kodymerlin1 Thank you very much!! If it's not a problem for you, my e-mail is [e-mail]

[@saiswaroopsurisettyjyothsn7774]

@@kodymerlin1 Hello, i have a problem during executing the code :
dTdt[1:n]=(m*Cp*(T[0:n-1])-T[1:n])+qflux*2*pi*r*dx)/(rho*Cp*dx*pi*r**2); (parse or syntex error) could you please help me out actually im doing for an insulated pipe

[@filipdries234]

@@kodymerlin1 Would it also be possible to forward the simulation for the countercurrent to me please? My e-mail is [e-mail]. Thank you very much!

[@AdityaPillai009]

@@kodymerlin1 Hello! Could you also kindly share it to [e-mail]? Thanks!