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The heat loss in a boiler takes place in the form of ________.
  • a)
    Heat carried away by flue gases
  • b)
    Heat carried away by ash
  • c)
    Moisture present in fuel and steam formed by combustion of hydrogen in fuel
  • d)
    All options are correct
Correct answer is option 'D'. Can you explain this answer?
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The heat loss in a boiler takes place in the form of ________.a)Heat ...
Balancing total energy entering a boiler against the energy that leaves the boiler in different forms
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The heat loss in a boiler takes place in the form of ________.a)Heat ...
Heat loss in a boiler

There are several ways in which heat loss occurs in a boiler. These include:

1. Heat carried away by flue gases:
During the combustion process in a boiler, flue gases are produced. These gases carry a significant amount of heat energy that can be lost if not properly utilized. The flue gases are typically hot and are released through the chimney. This heat loss can be minimized by maximizing the heat transfer surface area in the boiler, such as using heat exchangers or economizers to recover some of the heat from the flue gases before they are released.

2. Heat carried away by ash:
When solid fuels such as coal or biomass are burned in a boiler, ash is produced as a byproduct. This ash contains heat energy that is lost if not properly recovered. Ash can be carried away with the flue gases or can accumulate on the heat transfer surfaces, reducing their efficiency. Proper ash removal systems and regular maintenance can help minimize this type of heat loss.

3. Moisture present in fuel and steam formed by combustion of hydrogen in fuel:
Fuels used in boilers often contain moisture, which needs to be heated and evaporated before combustion can occur. This process requires energy and can result in heat loss. Additionally, when hydrogen is present in the fuel, it combines with oxygen during combustion to form steam. The formation of steam consumes heat energy, leading to further heat loss. Proper fuel preparation and handling can minimize the moisture content and hydrogen content in the fuel, reducing this type of heat loss.

4. Other sources of heat loss:
In addition to the above-mentioned sources, there can be other factors contributing to heat loss in a boiler. These may include radiation losses from the boiler surfaces, incomplete combustion of fuel, and heat loss through the boiler casing. Proper insulation, combustion optimization, and regular maintenance can help reduce these heat losses.

In conclusion, heat loss in a boiler occurs in various forms, including heat carried away by flue gases, heat carried away by ash, moisture present in fuel, and steam formed by the combustion of hydrogen in fuel. To minimize these heat losses and improve boiler efficiency, it is important to implement effective heat recovery systems, optimize combustion processes, and ensure regular maintenance and insulation of the boiler.
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The heat loss in a boiler takes place in the form of ________.a)Heat carried away by flue gasesb)Heat carried away by ashc)Moisture present in fuel and steam formed by combustion of hydrogen in fueld)All options are correctCorrect answer is option 'D'. Can you explain this answer?
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