What is the typical thermal efficiency range of a well-maintained boiler___________________?
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Answer: E. 90%
Explanation
Well-maintained modern industrial boilers can achieve high thermal efficiencies reaching up to ninety percent. Advanced heat recovery systems capture waste heat from exhaust flue gases effectively. Minimizing radiation and incomplete combustion losses maximizes overall thermal energy conversion. Boiler thermal efficiency measures the percentage of fuel energy transferred to steam. Economizers and air preheaters are commonly installed to improve modern boiler performance. Regular maintenance prevents scale buildup and soot deposition which degrade heat transfer.
Power generation plants rely on high-efficiency boilers to reduce fuel consumption costs. Industrial manufacturing facilities use efficient boilers for process heating and power. Environmental regulations incentivize facilities to maintain optimal boiler operating efficiencies. Option A represents extremely poor performance typical of severely neglected or obsolete boilers. Option B is too low for modern industrial steam generation units operating today. Option C describes mediocre efficiency levels easily surpassed by contemporary boiler designs.
- Subject
- Engineering
- Category
- Mechanical Engineering
- Topic
- —
- Difficulty
- medium
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