Refrigerant 134a enters a horizontal pipe operating at steady state at 40°C, 300 kPa, and a velocity of 40 m/s. At the exit, the cemperature is 90°C and the pressure is 240 kPa. The pipe diameter is 0.01 m.

Elements Of Electromagnetics
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Author:Sadiku, Matthew N. O.
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Refrigerant 134a enters a horizontal pipe operating at steady state at 40°C, 300 kPa, and a velocity of 40 m/s. At the exit, the
temperature is 90°C and the pressure is 240 kPa. The pipe diameter is 0.01 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.
Part A
X Your answer is incorrect.
Determine the mass flow rate of the refrigerant, in kg/s.
i
! kg/s
Transcribed Image Text:Refrigerant 134a enters a horizontal pipe operating at steady state at 40°C, 300 kPa, and a velocity of 40 m/s. At the exit, the temperature is 90°C and the pressure is 240 kPa. The pipe diameter is 0.01 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. Part A X Your answer is incorrect. Determine the mass flow rate of the refrigerant, in kg/s. i ! kg/s
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