Question

For true counter-current flow in a shell and tube heat exchanger, the value of correction factor \( F_T \) is —————.

• A. 1
• B. 0.75
• C. 0.95
• D. 0.75 – 0.95

Hint:

Counter-current flow in heat exchangers is more efficient as it allows for maximum temperature difference across the exchanger.

Answer 1

The Correct Option is A

- For true counter-current flow in a shell and tube heat exchanger, the correction factor \( F_T \) is exactly 1. 
Conclusion: The correct answer is option (A).