In a chemical plant a solution of density 1100 kg/m and specific heat capacity 4.6 kJ/kg K is to be heated from 65 "C to 100 "C; the required flow rate of solution is 11.8 kg/s. It is desired to use a tubular heat exchanger, the solution flowing at about 1.2 m/s in 25 mm bore iron tubes, and being heated by wet steam at 115°C. The length of the tubes must not exceed 3.5 m. Taking the inside and outside heat transfer coefficients as 5 and 10 kW/m2 K, and neglecting the thermal resistance of the tube wall, estimate the number of tubes and the number of tube passes required. 16.25

In a chemical plant a solution of density 1100 kg/m and specific heat capacity 4.6 kJ/kg K is to be heated from 65 "C to 100 "C; the required flow rate of solution is 11.8 kg/s. It is desired to use a tubular heat exchanger, the solution flowing at about 1.2 m/s in 25 mm bore iron tubes, and being heated by wet steam at 115°C. The length of the tubes must not exceed 3.5 m. Taking the inside and outside heat transfer coefficients as 5 and 10 kW/m2 K, and neglecting the thermal resistance of the tube wall, estimate the number of tubes and the number of tube passes required. 16.25

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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