Water at 15°C is heated by passing through a copper pipe with an inner diameter of 2 cm. The heat is obtained from the p
Posted: Sat May 21, 2022 11:55 am
Water at 15°C is heated by passing through a copper pipe with an
inner diameter of 2 cm. The heat is obtained from the process of
condensation of water vapor on the outer surface of the pipe which
occurs at 120°C. The water is required to leave at 65°C with a mass
flow rate of 0.2 kg/s.
a) Determine the rate of heat transfer Q
in IS units:
b) Calculate the logarithmic mean temperature in °C
c) Determine the heat transfer area (in m2) required by equating
the rate of heat transfer with Newton's law of cooling for the flow
in the pipe:
inner diameter of 2 cm. The heat is obtained from the process of
condensation of water vapor on the outer surface of the pipe which
occurs at 120°C. The water is required to leave at 65°C with a mass
flow rate of 0.2 kg/s.
a) Determine the rate of heat transfer Q
in IS units:
b) Calculate the logarithmic mean temperature in °C
c) Determine the heat transfer area (in m2) required by equating
the rate of heat transfer with Newton's law of cooling for the flow
in the pipe: