Question: Condensing steam at 120oC is to be used inside a 7.5-cm-diameter horizontal pipe to provide heating for a certain work area where the ambient air

Condensing steam at 120oC is to be used inside a 7.5-cm-diameter horizontal pipe to provide heating for a certain work area where the ambient air temperature is 20oC. The total heating required is 29.3 kW. What length pipe would be required to accomplish this heating?

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