What is the purpose of a fuel oil day tank?

A fuel oil day tank primarily serves the crucial function of supplying fuel oil as needed to the burner. This tank provides a short-term, readily available supply of fuel that can be directly drawn upon by the burner for immediate needs.

In many power systems, the day tank is typically smaller than the bulk storage tanks that hold larger quantities of fuel oil. Its purpose is to ensure that there's always a consistent flow of fuel to the burner, which is essential for maintaining efficient operation and preventing interruptions in fuel supply.

This arrangement allows for a more controlled and manageable fuel supply system, where the day tank can be refilled from the main storage tanks as necessary without overwhelming the burner with fluctuations in fuel availability. By fulfilling this role, the day tank helps ensure operational reliability in the fuel supply chain for combustion processes.

While filtering and monitoring aspects are important in the overall fuel management system, they are not the primary purpose of the day tank itself, which is designed specifically for supplying fuel oil on demand to the burner.