A 1 m long tube-within-a-tube heat exchanger, as shown in the sketch, is used to condense steam at 2 atmospheres in the annulus, and water flows in the inner tube, entering at 90?C. The inner tube is made of copper with an OD of 1.27 cm and an ID of 1.0 cm.(a) Estimate the water flow rate required to keep its outlet temperature below 100?C.(b) Estimate the pressure drop and the pumping power for the water in the heat exchanger, neglecting inlet and outlet losses.GIVENTube-within-a-tube condenserCooling water flowing in the inner tubeSteam at 2 atm condensing inside the annulusASSUMPTIONSSteady conditionsThe heat exchanger ishorizontal

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1,27 cm 1.0 cm Water Water Tin - 90° C Tout -90° C Steam Condensng p-2 atm -1 m