Water enters a 2.5-cm-internal-diameter thin copper tube of a heat exchanger at 15°C at a rate of 0.61 kg/s, and is heated by steam condensing outside at 115°C. If the average heat transfer coefficient is 950 W/m2.K, determine the length of the tube required in order to heat the water to 105°C. (Insert answer for Q (kW), TLMTD (°C) and L (m) ) kW m

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8th Edition
ISBN:9781305387102
Author:Kreith, Frank; Manglik, Raj M.
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Chapter7: Forced Convection Inside Tubes And Ducts
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Problem 7.4P
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Water enters a 2.5-cm-internal-diameter thin copper tube of a heat exchanger at 15°C at a rate of 0.61 kg/s, and is heated by steam condensing outside
at 115°C. If the average heat transfer coefficient is 950 W/m2.K, determine the length of the tube required in order to heat the water to 105°C.
(Insert answer for Q (kW), TLMTD (°C) and L (m) )
kW
°C
m
Transcribed Image Text:Water enters a 2.5-cm-internal-diameter thin copper tube of a heat exchanger at 15°C at a rate of 0.61 kg/s, and is heated by steam condensing outside at 115°C. If the average heat transfer coefficient is 950 W/m2.K, determine the length of the tube required in order to heat the water to 105°C. (Insert answer for Q (kW), TLMTD (°C) and L (m) ) kW °C m
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