What is the outlet temperature of the air heater?

What is the outlet temperature of the air heater?

• A. 27°C
• B. 170°C
• C. 350°C
• D. 600°C

Answer: (C)

To determine the correct outlet temperature of the air heater, it is essential to understand the operation and design standards of industrial air heaters. Typically, air heaters are employed in applications where preheating air is necessary before it enters a combustion chamber or is used for other heating processes. The air heater's primary role is to enhance the efficiency of combustion by raising the temperature of the incoming air significantly, allowing for better fuel combustion and reduced emissions. Depending on the specific design and fuel used, outlet temperatures can vary widely; however, they often range from several hundred degrees Celsius up to around 600°C in many systems. When considering the various options, the outlet temperature of 350°C aligns with what is typically expected in many industrial applications. This temperature indicates a level of preheating that facilitates efficient combustion without exceeding temperature limits that could damage components or lead to excessive heat losses. The higher temperatures, such as 600°C, although technically possible, may be impractically high for many standard designs and could pose risks in terms of equipment durability and efficiency. Thus, 350°C is a viable selection that reflects a reasonable and commonly encountered temperature for effective air heating systems in power engineering.

To determine the correct outlet temperature of the air heater, it is essential to understand the operation and design standards of industrial air heaters. Typically, air heaters are employed in applications where preheating air is necessary before it enters a combustion chamber or is used for other heating processes.

The air heater's primary role is to enhance the efficiency of combustion by raising the temperature of the incoming air significantly, allowing for better fuel combustion and reduced emissions. Depending on the specific design and fuel used, outlet temperatures can vary widely; however, they often range from several hundred degrees Celsius up to around 600°C in many systems.

When considering the various options, the outlet temperature of 350°C aligns with what is typically expected in many industrial applications. This temperature indicates a level of preheating that facilitates efficient combustion without exceeding temperature limits that could damage components or lead to excessive heat losses.

The higher temperatures, such as 600°C, although technically possible, may be impractically high for many standard designs and could pose risks in terms of equipment durability and efficiency. Thus, 350°C is a viable selection that reflects a reasonable and commonly encountered temperature for effective air heating systems in power engineering.