samko95
@samko95-fWBI0p Member
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Replied #Threads
equivalent diameter
Thank you for your reply. This formula is using to calculate the Hydraulic diameter, and D_h is not equal D_equ.
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How to Correlate The Average Nusselt Number
I did not understand what are you talking about, can you explain more please?
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How to Correlate The Average Nusselt Number
I am checked this data already, It is just give the final form without talk about the used way. Thank you for your attention
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How to Correlate The Average Nusselt Number
I agree with you, in addition to increase in area the turbulent must be increase due to large destruction in boundary layer by this conical perforation(I...
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How to Correlate The Average Nusselt Number
A.V.RamaniThat is interesting. Do perforations really increase HTC substantially? What happens to the pd at different velocities. I would have thought that if the area of...
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How to Correlate The Average Nusselt Number
Thank you for your reply I've simulated finned tube heat exchanger with circular fin (sold fin and perforated fin with different perforation shapes). I've got all...
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Two questions about heat exchanger
Shashank MogheWhat is stagnation area? Do share your final abstract once you are done publishing! Best of luck!stagnation area: where air collide the heat exchanger. thank...
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Two questions about heat exchanger
#-Link-Snipped-# and A.V.Ramani Thank you so much for your notes, and your attention to reply. I think I've got the answer .... Dh=4a/b where: a:Ratio of...
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Two questions about heat exchanger
Shashank MogheIn his case, the fins have a greater lateral area for air cooling than that for the non-finned area. I was going to suggest this:...
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Two questions about heat exchanger
A.V.RamaniThe Re in such cases has to do with the economics of pumping large volumes of the gas across the bank. While increased Re does improve...
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Two questions about heat exchanger
A.V.RamaniI feel that 200,000 is pretty high. In any case friction factor for 10,000 to 100,000 does not vary much. The drawing shows individual fins and...
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Two questions about heat exchanger
-Firstly I was forgetting to explain that my questions are just about air side (external cross flow over the tubes), and in order to gain turbulent...
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Two questions about heat exchanger
OK my friend, thank you so much for your attention. I'll be back with more details after one hour or less, because I live in IRAQ...
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Two questions about heat exchanger
Thank you for your reply #-Link-Snipped-# -I know what you talking about exactly, I'll clear more : some researchers depend on tube hydraulic diameter and an...
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