Timeline for What does this assumption mean in heat exchanger analysis?
Current License: CC BY-SA 4.0
8 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Aug 13, 2021 at 6:12 | comment | added | Harshit Rajput | Well, this pointed out a great loophole in my understanding. I will have to revisit the topic again because till now I thought the surface temperature was constant. Thank You. | |
| Aug 12, 2021 at 19:28 | comment | added | Bob Jacobsen | I don’t think you can assume that the temperature difference along the entire tube (full length) is small, just that heat transfer along the material of the tube is negligible. | |
| Aug 12, 2021 at 19:14 | comment | added | Harshit Rajput | Ohhh! So the temperature along the tube does vary, it's just that the temperature difference is small as we move along the tube and heat transfer due to that little temperature difference turns out to be negligible. Any corrections in my understanding? | |
| Aug 12, 2021 at 19:06 | comment | added | Gert | The inner wall temperature is not important because that's not how LMTD is calculated anyway. | |
| Aug 12, 2021 at 18:56 | comment | added | Gert | @HarshitRajput Oh no, not at all. The temperature varies along the tube, so the inner surface temperature does too. | |
| Aug 12, 2021 at 18:55 | comment | added | Bob Jacobsen | No. Just that the amount of thermal energy transferring inside the tube due to that dT is negligible. | |
| Aug 12, 2021 at 18:54 | comment | added | Harshit Rajput | So that should imply temperature at the inner surface of the tube remains constant (uniform everywhere)? | |
| Aug 12, 2021 at 18:38 | history | answered | Bob Jacobsen | CC BY-SA 4.0 |