What is the function of a fuel-oil expansion tank?

What is the function of a fuel-oil expansion tank?

• A. To increase fuel pressurization
• B. To accommodate thermal expansion of the fuel oil
• C. To serve as an additional fuel reservoir
• D. To filter impurities

Answer: (B)

The function of a fuel-oil expansion tank is to accommodate thermal expansion of the fuel oil. As fuel oil heats up, its volume increases due to thermal expansion. The expansion tank provides a designated space for this increased volume, preventing pressure buildup within the system that could lead to damage or leaks. This is essential for maintaining the integrity and safety of the fuel-oil storage system, as it ensures that the system can operate efficiently without over-pressurization. While increasing fuel pressurization, serving as an additional fuel reservoir, or filtering impurities are important aspects of fuel oil systems, they do not directly relate to the specific purpose of an expansion tank. The primary role of this tank is to manage changes in fuel volume due to temperature fluctuations, ensuring the system remains safe and functional.

The function of a fuel-oil expansion tank is to accommodate thermal expansion of the fuel oil. As fuel oil heats up, its volume increases due to thermal expansion. The expansion tank provides a designated space for this increased volume, preventing pressure buildup within the system that could lead to damage or leaks. This is essential for maintaining the integrity and safety of the fuel-oil storage system, as it ensures that the system can operate efficiently without over-pressurization.

While increasing fuel pressurization, serving as an additional fuel reservoir, or filtering impurities are important aspects of fuel oil systems, they do not directly relate to the specific purpose of an expansion tank. The primary role of this tank is to manage changes in fuel volume due to temperature fluctuations, ensuring the system remains safe and functional.