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Typical UA values for industrial large air heater
- Thread starter GeminiII
- Start date
GeminiII,
I'll take a stab at this one. If you use a typical 1" OD tube with 5/8" high aluminum fins at 10 fins/inch, the surface area is about 5.65 square feet per linear foot. A typical U value would be on the order of 5 to 6 BTU/(hr-sq ft-deg F). Therefore, a good estimating value would be about 31 for U * A. I'm making a lot of assumptions here, but that should be a fairly conservative value to use unless the fluid velocities are unusually low.
Regards,
Speco
I'll take a stab at this one. If you use a typical 1" OD tube with 5/8" high aluminum fins at 10 fins/inch, the surface area is about 5.65 square feet per linear foot. A typical U value would be on the order of 5 to 6 BTU/(hr-sq ft-deg F). Therefore, a good estimating value would be about 31 for U * A. I'm making a lot of assumptions here, but that should be a fairly conservative value to use unless the fluid velocities are unusually low.
Regards,
Speco
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