Chemical Engineering - Heat Transfer - Discussion
Discussion Forum : Heat Transfer - Section 1 (Q.No. 21)
21.
Hot water (0.01 m3 /min) enters the tube side of a counter current shell and tube heat exchanger at 80°C and leaves at 50°C. Cold oil (0.05 m3/min) of density 800 kg/m3 and specific heat of 2 kJ/kg.K enters at 20°C. The log mean temperature difference in °C is approximately
Discussion:
36 comments Page 2 of 4.
Maha said:
4 years ago
For counter current (as mentioned in statement):
LMTD = 37.
LMTD = 37.
Rana Rohan said:
6 years ago
Given answer is right for co-current.
Ritik said:
7 years ago
Thanks for your answer @Shan Rana.
Hariom said:
7 years ago
Yes, 37 is the answer.
Monil said:
7 years ago
How to put t2=35.54?
Please explain.
Please explain.
Zubair Farooq said:
7 years ago
Log mean Temp Diff = T2-T1/ln(T2/T1).
Tekena said:
7 years ago
The answer is 38.22~ 38.
Riddhi said:
8 years ago
Yes, 36.6 is the correct answer for counter current flow.
Mujahid Yusuf Barde said:
7 years ago
The answer is 36.5 = 37 ° considering counterflow.
Tushar said:
9 years ago
Parallel flow gives an answer of 32C but counter current gives 37C.
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