What are known as the three “Ts” essential for complete combustion____________________?
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Answer: A. temperature, time, and turbulance
Explanation
Sufficient temperature ensures the fuel-air mixture reaches its required ignition point instantly. Adequate time allows chemical combustion reactions to proceed completely to carbon dioxide and water. Turbulence promotes thorough microscopic mixing between oxygen and fuel molecules for complete burning. Combustion is a rapid exothermic chemical oxidation reaction releasing thermal and radiant energy. Incomplete combustion produces toxic carbon monoxide and unburnt soot particulate emissions. Boiler burners are engineered specifically to maximize air turbulence and flame stability.
Furnace operators monitor these three parameters to maximize boiler efficiency and minimize pollution. Automotive catalytic converters help oxidize unburnt hydrocarbons due to imperfect combustion conditions. Industrial incinerators require precise control over residence time and temperature for safe destruction. Total air and true fuel terms do not form the classic three Ts combustion definition. Thorough mixing is a descriptive concept but turbulence is the accepted standard terminology. Stating none of the above is incorrect since temperature, time, and turbulence are standard.
- Subject
- Engineering
- Category
- Mechanical Engineering
- Topic
- —
- Difficulty
- medium
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