Refrigerant 134a enters a horizontal pipe operating at
Chapter 4, Problem 4.24(choose chapter or problem)
Refrigerant 134a enters a horizontal pipe operating at steady state at \(40^{\circ} \mathrm{C}\), 300 kPa, and a velocity of 40 m/s. At the exit, the temperature is \(50^{\circ} \mathrm{C}\) and the pressure is 240 kPa. The pipe diameter is 0.04 m. Determine (a) the mass flow rate of the refrigerant, in kg/s, (b) the velocity at the exit, in m/s, and (c) the rate of heat transfer between the pipe and its surroundings, in kW.
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