The required mass flow of cooling water, kg/s  2. The required capacity of the circulating pump, liter per second  3. The Logarithmic Mean Temperature Difference, C

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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A steam condenser operates at 61 cm of Hg vacuum. The steam enters the condenser with a moisture content of 87%. Cooling water is supplied to the condenser at a temperature of 20 C with a terminal difference of 5 C. The water velocity of water inside the tube is to be limited to 2.5 m/s when using 2.5 cm outside diameter tubes whose thickness is 1.75 mm. The overall heat transfer coefficient of the tubes could be approximated by the equation U = 1213.4(v1/2), W/(m2-C) where v is the water velocity in m/sec. 

Determine: 

1. The required mass flow of cooling water, kg/s 

2. The required capacity of the circulating pump, liter per second 

3. The Logarithmic Mean Temperature Difference, C 

4. The required Number of tubes 

5. The required length of tubes, (m), and number of passes

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