Water (Cp = 4200 J/kg. °C) is used cool an unknown fluid (with a given Cp = 3810 J/kg.°C) using a two-pass %3D parallel flow double-pipe heat exchanger. The unknown fluid enters the heat exchanger at 66 °C with a flowrate of 1.46 kg/s. Water can be supplied at 10 °C and 1.32 kg/s. If the heat exchanger cool the unknown fluid to 39 °C, then the NTU of this heat exchanger is equal to

Elements Of Electromagnetics
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Author:Sadiku, Matthew N. O.
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Water (Cp = 4200 J/kg- °C) is used
cool an unknown fluid (with a given
Cp = 3810 J/kg.ºC) using a two-pass
parallel flow double-pipe heat
exchanger. The unknown fluid enters
the heat exchanger at 66 °C with a
flowrate of 1.46 kg/s. Water can be
supplied at 10 °C and 1.32 kg/s. If the
heat exchanger cool the unknown
fluid to 39 °C, then the NTU of this
heat exchanger is equal to
O 0.79
1.59
O 3.18
O 4.77
Transcribed Image Text:Water (Cp = 4200 J/kg- °C) is used cool an unknown fluid (with a given Cp = 3810 J/kg.ºC) using a two-pass parallel flow double-pipe heat exchanger. The unknown fluid enters the heat exchanger at 66 °C with a flowrate of 1.46 kg/s. Water can be supplied at 10 °C and 1.32 kg/s. If the heat exchanger cool the unknown fluid to 39 °C, then the NTU of this heat exchanger is equal to O 0.79 1.59 O 3.18 O 4.77
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