• Consider a thin-walled 2 -cm diameter pipe through which water flows at a mass flow rate of 0.2 kg/s. The inlet temperature of water is Tmi= 25 oC. The pipe is located outdoors in an environment where the air temperature is -10 ^oC and the convective heat transfer coefficient is ho = 20 W/m² -K. To reduce heat loss, the pipe is insulated with a 1 cm-thick insulation of kins = 0.1 W/m-K. The length of the pipe is L= 200 m.
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• a. Determine the exit temperature of water.
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• b. Determine the heat loss to the environment.

Answer rating: 100% (QA)

To solve this problem well use the energy balance equation for the pipe The rate of heat transfer from the water to the environment must equal the rat... View the full answer