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| Teaching Since: | May 2017 |
| Last Sign in: | 399 Weeks Ago, 1 Day Ago |
| Questions Answered: | 66690 |
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MCS,PHD
Argosy University/ Phoniex University/
Nov-2005 - Oct-2011
Professor
Phoniex University
Oct-2001 - Nov-2016
Geothermal water (cp = 4250 J/kg.K) at 75°C is to be used to heat fresh water (cp = 4180 J/kg.K) at 17°C at a rate of 1.2 kg/s in a double-pipe counter-flow heat exchanger. The heat transfer surface area is 25 m2 , the overall heat transfer coefficient is 480 W/m2 .K, and the mass flow rate of geothermal water is larger than that of fresh water. If the effectiveness of the heat exchanger is desired to be 0.823, determine the mass flow rate of geothermal water and the outlet temperatures of both fluids.
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