Read the question carefully and give me right solution with clear calculations. Thank you 5. Air is to be heated at a rate of 1 kg/s from 30°C to 45°C in a cross flow type of heatexchanger with finned tubes with water at 90°C flowing inside the tubes. The overall heattransfer coefficient is 60 W/m2K referred to an area of 7.5 m2. Calculate the flow rate ofwater and the water exit temperature. Also determine the % change in the flow rate ofwater if the water inlet temperature is 60°C, 70°C, 80°C and 100°C. Assume the air flowrate and air exit temp. remain unchanged.

mo=1 kgKtc1 =30°Ctco=45°Cth1=90°CU=60 W/m2KA=7.5 m2Heat transfer=Q=maCpa(tc2-tc1)Q=1×1.00545-30…

5. Air is to be heated at a rate of 1 kg/s from 30°C to 45°C in a cross flow type of heat exchanger with finned tubes with water at 90°C flowing inside the tubes. The overall heat cransfer coefficient is 60 W/m2K referred to an area of 7.5 m2. Calculate the flow rate of water and the water exit temperature. Also determine the % change in the flow rate of water if the water inlet temperature is 60°C, 70°C, 80°C and 100°C. Assume the air flow rate and air exit temp. remain unchanged.

5. Air is to be heated at a rate of 1 kg/s from 30°C to 45°C in a cross flow type of heat exchanger with finned tubes with water at 90°C flowing inside the tubes. The overall heat cransfer coefficient is 60 W/m2K referred to an area of 7.5 m2. Calculate the flow rate of water and the water exit temperature. Also determine the % change in the flow rate of water if the water inlet temperature is 60°C, 70°C, 80°C and 100°C. Assume the air flow rate and air exit temp. remain unchanged.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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