Air at atmospheric pressure (T=30°C) and with a mean velocity of 1.8km/h flows inside thin-walled, squared cross-section

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Air at atmospheric pressure (T=30°C) and with a mean velocity of 1.8km/h flows inside thin-walled, squared cross-section

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Air At Atmospheric Pressure T 30 C And With A Mean Velocity Of 1 8km H Flows Inside Thin Walled Squared Cross Section 1
Air At Atmospheric Pressure T 30 C And With A Mean Velocity Of 1 8km H Flows Inside Thin Walled Squared Cross Section 1 (24.3 KiB) Viewed 8 times
Air at atmospheric pressure (T=30°C) and with a mean velocity of 1.8km/h flows inside thin-walled, squared cross-section ducts of sides b = 25mm. The air is heated from the walls of the duct, which are maintained at a uniform temperature by condensing steam on the outside surface. Determine the amount of heat per unit of its length if surface temperature is 110°C. Answer:
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