HTRI Baffle design (NTIW and single segmental difference)
HTRI Baffle design (NTIW and single segmental difference)
(OP)
Dear Sir/Madam
I tried to used HTRI to simulate the AES horizontal exchanger.
Condition :
1. The shell side inlet condition is vapor(39000kg/hr),
liquid (90000kg/hr) 60 degree C
2. The shell side outlet condition vapor 33000 kg/hr (decrease)
liquid 95000 kg/hr(increase), 40 degree C,
3 The tube side is cooling water 250000kg/hr,
inlet/30 degree C, outlet/40 degree C.
Although this type is phase change problems and no-tube-in-window (NTIW) design may be used
for vibration problems, I tried to rating this exchanger with single segmental
baffles type.
The warning message I got is attached in the mail and almost are Bundle, Shell Entrance vibration problem.
I tried to increase the shell side diameter and baffle spacing but in vain.
Could you please help me this trivial problem?
Thank you so much.
I tried to used HTRI to simulate the AES horizontal exchanger.
Condition :
1. The shell side inlet condition is vapor(39000kg/hr),
liquid (90000kg/hr) 60 degree C
2. The shell side outlet condition vapor 33000 kg/hr (decrease)
liquid 95000 kg/hr(increase), 40 degree C,
3 The tube side is cooling water 250000kg/hr,
inlet/30 degree C, outlet/40 degree C.
Although this type is phase change problems and no-tube-in-window (NTIW) design may be used
for vibration problems, I tried to rating this exchanger with single segmental
baffles type.
The warning message I got is attached in the mail and almost are Bundle, Shell Entrance vibration problem.
I tried to increase the shell side diameter and baffle spacing but in vain.
Could you please help me this trivial problem?
Thank you so much.





RE: HTRI Baffle design (NTIW and single segmental difference)
RE: HTRI Baffle design (NTIW and single segmental difference)
But in design mode, I didn't choose the shell&tube diameter, crosspass, spacing, tubecount
and baffle cut and only let htri to be chosen the proper number.
Then, the result give me this warning:
Thank you very much.
RE: HTRI Baffle design (NTIW and single segmental difference)
FYI, no tubes in window might not address your problem at all. Example: You might have vertical cut baffles (cut parallel to the vertical axis of the shell), and radial nozzles located at, say, 0 and 180 degrees. Your windows would be at 90 and 270 in the example, and do you absolutely zero good (but it will make your unit much less efficient).
-TJ Orlowski