Hot water at 2.5 kg/s and 100°C enters a concentric tube counter flow heat exchanger having a total area of 23 m 2 . Cold water at 20°C enters at 5.0 kg/s and the overall heat transfer coefficient is...

Hot water at 2.5 kg/s and 100°C enters a concentric tube counter flow heat exchanger having a total area of 23 m². Cold water at 20°C enters at 5.0 kg/s and the overall heat transfer coefficient is 1000 W/ m².K. Determine the total heat transfer rate and the outlet temperature of hot and cold fluids.