Shell and Tube Heat Exchanger - Gujarati

Questions posted on ST Forums:

• Unable to enter hot and cold fluid pressure drop

  Unable to enter hot and cold fluid pressure drop in DWSIM Version 6.4.3 .Is there any way by which we can do it? Kindly help

  00-01M 0-10S vidyavijayev
  
  
  Answer last updated on: Jan. 19, 2023, 12:06 p.m.

  ---

• Doubt in Calculations of Properties of Shell and Tube Heat Exchanger

  How to calculate passes per shell, tubes per shell for shell and tube heat exchanger?

  09-10M 20-30S afrah_kv
  
  
  Answer last updated on: July 18, 2022, 11:41 a.m.

  ---

• Shell and tube heat exchanger

  I followed each and every step in this tutorial and i am getting error - " The temperature did not converge" , "The Flash Algorithm was unable to converge to a solution." , "Try another Property Package and/or Flash Algorithm"

  00-01M 30-40S MirajPurohit
  
  
  Answer last updated on: May 3, 2022, 10:54 p.m.

  ---

• Improper property values in HEX

  Using DWSIM version 6.1, the cold and hot fluid pressure drop values cannot be entered like the tutorial did. Understanding the version update changes the method and calculation algorithms, the desired results as in the tutorial cannot be achieved. I observe altering the HEX properties alters the fluid pressure drop values both in tutorial and in my computation. But, still the results do not match even after sharing same properties.Although, The results I got had small changes in outlet temperature (+- 2 C), large difference in Heat Transfer Coefficient (+60W/[m2.K]). I hereby ask your help if there are any other way of solving / exploring the discretion in a different way or we have to wait till the tutorials are updated using the current version?Link: https://drive.google.com/file/d/1ICVLUE71rtwiylCYBnrfT1HG33E1TxEa/view?usp=sharing 

  09-10M 30-40S Deena_S
  
  
  Answer last updated on: July 16, 2021, 4:45 p.m.

  ---

• Shell and tube Heat Exchanger

  Good Afternooni am having a problem regarding the tutorial.When I opened the editor window for the Heat Exchanger element, as soon as i specified calculation type as Shell and tube heat exchanger rating ,the other boxes under it become frozen. Not able to specify cold and hot fluid pressure drops. Please help me out.also can you guys tell how did u get the values of fouling factor,thermal conductivity,roughness,tubes per shell,passes per shell and tube layout. I am not able to understand how to get this values as because its not given earlier in the problem statement.Hoping to hear from you soon.Regards.

  10-11M 50-60S 9shubh_1729
  
  
  Answer last updated on: June 22, 2021, 10:13 a.m.

  ---

• Bug: Shell side fouling factor gets multiplied by 10^3 everytime you open and close the shell and tube heat exchanger property table

  Everytime I open and input a value (let's say 0.00035 Km2/W) it gets multiplied by 1000 as soon as I close it. This keeps repeating everytime the editor window is opened and closed.

  10-11M 0-10S sroyonline
  
  
  Answer last updated on: April 19, 2021, 11:39 a.m.

  ---

• Cannot Edit Fouling Factor in Shell & Tube HE

  I have simulate as per your instruction. I am not getting thermal efficiency LMTD values correctly.https://drive.google.com/file/d/1DiS_wvxhhCtgnVbgFnqFY_eYZW73M7GM/view?usp=sharing Please check.

  11-12M 40-50S rakshitgadge
  
  
  Answer last updated on: March 15, 2021, 11:03 a.m.

  ---

• Thermal Efficiency And LMTD values are different.

  I have simulate no. of times but my values of Thermal efficiency and LMTD values are different.

  12-13M 10-20S rakshitgadge
  
  
  Answer last updated on: March 12, 2021, 6:35 p.m.

  ---

• HE-01: PH Flash

  https://drive.google.com/file/d/16tcUmlIY_kgD1xsUEgte14bUoma6kZbe/view?usp=sharing

  11-12M 10-20S kSABER
  
  
  Answer last updated on: Feb. 19, 2021, 1:14 p.m.

  ---

• HE-01: PH Flash

  invalid result temperature did not coverage 

  12-13M 20-30S kSABER
  
  
  Answer last updated on: Feb. 19, 2021, 12:57 p.m.

  ---

• Shell and tube heat exchanger

  It is showing as temperature is not converged so I am not getting result for the spoken tutorial problem

  13-14M 50-60S Abhig
  
  
  Answer last updated on: Feb. 19, 2021, 12:29 p.m.

  ---

• Temperature did not converge

  I am getting this error while solving the example provided in the video lecture:-PH Flash [NL]: Invalid result: Temperature did not converge.

  11-12M 40-50S abhishekgadhwal
  
  
  Answer last updated on: Feb. 19, 2021, 12:11 p.m.

  ---

• Cannot edit pressure drops of Cold and hot fluid

  I am unable to edit pressure drop in v5 DWsim

  08-09M 50-60S Teja9006
  
  
  Answer last updated on: Feb. 19, 2021, 12:04 p.m.

  ---

• liquid phase

  I am getting error in calculating liquid phase fraction.

  11-12M 40-50S abhay@13
  
  
  Answer last updated on: Feb. 17, 2021, 9:18 a.m.

  ---

• STHE

  1) HE invalid tube spacing (Pitch) smaller than tubes external diameter

  12-13M 20-30S yadavsdjnec@gmail.com
  
  
  Answer last updated on: May 6, 2020, 7:58 p.m.

  ---