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Flue Gas Stack Modeling
#1
Posted 28 May 2023 - 06:47 AM
I hope you can help me out in a simple topic. I’m going to model a flue gas stack in aspen hysys to check heat transfer and I’m using pipe segments feature. The bottom of the stack is conic starting from diameter of 17’ and being reduced to 8’ in 70’ of height. After that stack is like a 8’ pipe. Any idea of how to include that conic section in pipe segment? Or any idea of an alternative way of modeling a stack?
Thanks
Maryam
#2
Posted 28 May 2023 - 07:28 AM
This book excerpt may be a useful reference: https://tinyurl.com/chimneycalcs
#3
Posted 28 May 2023 - 06:42 PM
hi,
Not knowing how it works with Aspen, I was thinking to use the same lateral surface for heat transfer for tween a truncated cone and a cylinder of diameter 8 '.
If my calculation is correct, I get equivalent length of 109 ' for a 8' Diameter.
Hope this is helping you.
Breizh
#4
Posted 31 May 2023 - 01:44 PM
Hello all,
I hope you can help me out in a simple topic. I’m going to model a flue gas stack in aspen hysys to check heat transfer and I’m using pipe segments feature. The bottom of the stack is conic starting from diameter of 17’ and being reduced to 8’ in 70’ of height. After that stack is like a 8’ pipe. Any idea of how to include that conic section in pipe segment? Or any idea of an alternative way of modeling a stack?
Thanks
Maryam
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