What is the primary function of a fuel temperature indicator on a turbine engine?

The primary function of a fuel temperature indicator on a turbine engine is to determine the formation of ice crystals. As fuel temperature decreases, especially in high-altitude conditions, the risk of ice crystal formation increases, which can lead to fuel system blockages or performance issues. Monitoring the temperature of the fuel is crucial to ensure it remains within a safe range to avoid these potentially hazardous conditions.

Fuel temperature indicators help operators anticipate and mitigate issues that could arise from cold fuel, ensuring that the engine operates efficiently and safely. In sedimentation and filtration processes, the presence of ice can disrupt fuel flow and negatively affect performance. Thus, understanding and managing the temperature of the fuel is vital for the reliable operation of turbine engines.