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The amount of water evaporated in kg per kg of fuel burnt is called
- a)evaporative capacity of a boiler
- b)equivalent evaporation from and at 100º C
- c)boiler efficiency
- d)none of these
Correct answer is option 'A'. Can you explain this answer?
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The amount of water evaporated in kg per kg of fuel burnt is calleda)e...
Evaporative Capacity of a Boiler
The evaporative capacity of a boiler is the amount of water evaporated in kg per kg of fuel burnt. It is an important parameter in the design and operation of boilers as it determines the efficiency of the boiler. The higher the evaporative capacity, the higher the efficiency of the boiler.
Factors affecting evaporative capacity:
1. Type of fuel: Different fuels have different calorific values and heat transfer properties, which affect the evaporative capacity of the boiler.
2. Boiler design: The design of the boiler, including the number and size of tubes, the type of burner, and the surface area of the heat exchanger, affects the evaporative capacity.
3. Operating conditions: The operating conditions, such as the temperature and pressure of the steam and the amount of air supplied to the burner, also affect the evaporative capacity.
Units of evaporative capacity:
The evaporative capacity is usually expressed in kg of steam produced per kg of fuel burnt. It can also be expressed in terms of the equivalent evaporation from and at 100 C, which is the amount of water evaporated at 100 C and atmospheric pressure that would require the same amount of heat as that supplied by the fuel.
Importance of evaporative capacity:
The evaporative capacity is an important parameter in the evaluation and optimization of boiler performance. It is used to determine the efficiency of the boiler and to compare the performance of different boilers. It is also used in the design of new boilers to ensure that they are capable of meeting the required steam demand with minimum fuel consumption.
The evaporative capacity of a boiler is the amount of water evaporated in kg per kg of fuel burnt. It is an important parameter in the design and operation of boilers as it determines the efficiency of the boiler. The higher the evaporative capacity, the higher the efficiency of the boiler.
Factors affecting evaporative capacity:
1. Type of fuel: Different fuels have different calorific values and heat transfer properties, which affect the evaporative capacity of the boiler.
2. Boiler design: The design of the boiler, including the number and size of tubes, the type of burner, and the surface area of the heat exchanger, affects the evaporative capacity.
3. Operating conditions: The operating conditions, such as the temperature and pressure of the steam and the amount of air supplied to the burner, also affect the evaporative capacity.
Units of evaporative capacity:
The evaporative capacity is usually expressed in kg of steam produced per kg of fuel burnt. It can also be expressed in terms of the equivalent evaporation from and at 100 C, which is the amount of water evaporated at 100 C and atmospheric pressure that would require the same amount of heat as that supplied by the fuel.
Importance of evaporative capacity:
The evaporative capacity is an important parameter in the evaluation and optimization of boiler performance. It is used to determine the efficiency of the boiler and to compare the performance of different boilers. It is also used in the design of new boilers to ensure that they are capable of meeting the required steam demand with minimum fuel consumption.
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The amount of water evaporated in kg per kg of fuel burnt is calleda)e...
Evaporative capacity of a boiler
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The amount of water evaporated in kg per kg of fuel burnt is calleda)evaporative capacity of a boilerb)equivalent evaporation from and at 100º Cc)boiler efficiencyd)none of theseCorrect answer is option 'A'. Can you explain this answer?
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