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Engineering, 16.04.2020 18:38 DSUDLER5555

Refrigerant 134a enters a horizontal pipe operating at steady state at 50°C, 450 kPa and a velocity of 46.1 m/s. At the exit, the temperature is 60 °C and the pressure is 220 kPa. The pipe diameter is 0.04 m. Determine the rate of heat transfer between the pipe and its surroundings, in kW.

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