How far should DPF regeneration occur from buildings or aircraft to prevent ignition hazards?

• A. 50 feet
• B. 100 feet
• C. 150 feet
• D. 200 feet

Answer: (B)

Regeneration of Diesel Particulate Filters (DPFs) is essential for the proper functioning of diesel engines, especially in environments such as airports where safety is a top priority. The recommendation for DPF regeneration to occur at least 100 feet away from buildings or aircraft is primarily based on preventing ignition hazards.

This distance helps ensure that any heat generated during the regeneration process, which can reach elevated temperatures, does not come into contact with combustible materials or structures. Airports often have many flammable substances and sensitive equipment, making it crucial to maintain a safe distance during this maintenance activity.

At 100 feet, there is a significant buffer zone that mitigates the risk of heat propagation, ensuring that both structural and operational safety is preserved. The specified distance is consistent with best practices in fire safety, establishing guidelines that prioritize the protection of both people and property from potential fire hazards.