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(Solved): PART II A chemical engineer is to design a shell and tube heat exchanger in a restricted area in a r ...
PART II
A chemical engineer is to design a shell and tube heat exchanger in a restricted area in a room of a length of
1.75m.4k(g)/(sec) of water at an average velocity of 0.375(m)/(sec) is to be heated in the tube side from 50\deg C to
65\deg C using 1.875 cm (inside diameter) tubes. The overall heat transfer coefficient (based on inside tube
area) is 1390(W)/(m^(2)\deg C)95\deg C 2.0k(g)/(sec).
Starting with a single shell pass heat exchanger: find the number of tube passes, the number tubes per
pass, and tube length. (using the LMTD method).
Solution by steps all equations and calculations:
Discussion:
If the mass flow rate entering the tubes is increased to 10k(g)/(sec). Use the NTU method to predict the
outlet temperatures for the hot and the cold fluids. Assume all other parameters are the same including the
inlet temperatures.
Solution by steps all equations and calculations:
Discussion:
Conclusion for both parts