The outlet temperature of cooling water in a heat exchanger is generally not allowed to exceed above 50°C in industrial practice mainly to avoid_________________?
Correct answer: A. Excessive corrosion
- A. Excessive corrosion
- B. Its evaporation loss
- C. Uneconomic LMTD
- D. Decrease in heat exchanger efficiency
Explanation
Keeping cooling-water outlet temperature below about 50°C limits corrosion, especially because higher temperatures accelerate corrosion and can worsen deposits. Evaporation loss may occur, but excessive corrosion is the main industrial concern.
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