A double-pipe parallel-flow heat exchanger is to heat water (cp = 4180 J/kg·K) from 25°C to 60°C at a rate of 0.2 kg/s. The heating is to be accomplished by geothermal water (cp = 4310 J/kg·K) available at 140°C at a mass flow rate of 0.3 kg/s. The inner tube is thin-walled and has a diameter of 0.8 cm. If the overall heat transfer coefficient of the heat exchanger is 550 W/m2·K, determine the length of the tube required to achieve the desired heating.
Heat Exchangers
Heat exchangers are the types of equipment that are primarily employed to transfer the thermal energy from one fluid to another, provided that one of the fluids should be at a higher thermal energy content than the other fluid.
Heat Exchanger
The heat exchanger is a combination of two words ''Heat'' and ''Exchanger''. It is a mechanical device that is used to exchange heat energy between two fluids.
A double-pipe parallel-flow heat exchanger is to
heat water (cp = 4180 J/kg·K) from 25°C to 60°C at a rate
of 0.2 kg/s. The heating is to be accomplished by geothermal
water (cp = 4310 J/kg·K) available at 140°C at a mass
flow rate of 0.3 kg/s. The inner tube is thin-walled and has a
diameter of 0.8 cm. If the overall heat transfer coefficient of
the heat exchanger is 550 W/m2·K, determine the length of
the tube required to achieve the desired heating.
Trending now
This is a popular solution!
Step by step
Solved in 2 steps with 2 images
