For hot feed, forward feeding as compared to backward feeding results in ______________ economy?
Correct answer: A. Increased
- A. Increased
- B. Decreased
- C. No effect on
- D. None of these
Explanation
With hot feed in a multiple-effect evaporator, forward feeding generally improves economy because the feed enters at a relatively high temperature and requires less sensible heating. Backward feeding is more useful for cold, viscous feeds.
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