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Air-Preheater in a steam power plant _____________
- a)Raises the temperature of the furnace gases
- b)Recovers the heat from the flue gases leaving the economiser
- c)Improves combustion rate
- d)All of the mentioned
Correct answer is option 'D'. Can you explain this answer?
Verified Answer
Air-Preheater in a steam power plant _____________a)Raises the tempera...
Air- preheater in a steam power plant recovers the heat from the flue gases leaving the economiser, improves combustion rate, raises temperature of the furnace gases, etc.
Most Upvoted Answer
Air-Preheater in a steam power plant _____________a)Raises the tempera...
Understanding Air Preheaters in Steam Power Plants
Air preheaters play a crucial role in enhancing the efficiency of steam power plants. They provide several benefits, as indicated by the options in the question.
1. Raises the Temperature of the Furnace Gases
- Air preheaters increase the temperature of the combustion air before it enters the furnace.
- This rise in temperature contributes to more efficient combustion, ensuring optimal fuel utilization.
2. Recovers Heat from Flue Gases
- They are designed to recover heat from the flue gases that exit the economizer.
- This recovered heat is used to preheat the incoming air, reducing the overall energy consumption of the plant.
3. Improves Combustion Rate
- By supplying warmer air to the combustion process, air preheaters improve the combustion rate.
- Enhanced combustion leads to higher efficiency and reduced emissions, promoting a more sustainable operation.
4. Overall Impact
- The combined effect of these functions results in increased thermal efficiency of the power plant.
- Lower fuel consumption and reduced operational costs are significant outcomes of utilizing air preheaters.
Conclusion
- Therefore, the answer "All of the mentioned" (option D) is correct because air preheaters contribute to raising furnace gas temperatures, recovering heat from flue gases, and improving combustion rates.
- Their role is vital in maximizing efficiency and minimizing environmental impact in steam power plants.
Air preheaters play a crucial role in enhancing the efficiency of steam power plants. They provide several benefits, as indicated by the options in the question.
1. Raises the Temperature of the Furnace Gases
- Air preheaters increase the temperature of the combustion air before it enters the furnace.
- This rise in temperature contributes to more efficient combustion, ensuring optimal fuel utilization.
2. Recovers Heat from Flue Gases
- They are designed to recover heat from the flue gases that exit the economizer.
- This recovered heat is used to preheat the incoming air, reducing the overall energy consumption of the plant.
3. Improves Combustion Rate
- By supplying warmer air to the combustion process, air preheaters improve the combustion rate.
- Enhanced combustion leads to higher efficiency and reduced emissions, promoting a more sustainable operation.
4. Overall Impact
- The combined effect of these functions results in increased thermal efficiency of the power plant.
- Lower fuel consumption and reduced operational costs are significant outcomes of utilizing air preheaters.
Conclusion
- Therefore, the answer "All of the mentioned" (option D) is correct because air preheaters contribute to raising furnace gas temperatures, recovering heat from flue gases, and improving combustion rates.
- Their role is vital in maximizing efficiency and minimizing environmental impact in steam power plants.
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