What is fire detection system in aircraft?

Discussion. Automatic systems can detect aircraft fires or potential ignition which might not be apparent to the crew until they have developed to an extent which makes their successful control difficult, or impossible. These systems are based upon both heat and smoke sensing.

What are three common fire detection devices?

There are three main types of fire alarm monitoring systems: ionization, photoelectric, and combination alarms. Below we will discuss each type of alarm and how they can help detect fires.

How fire hazard can be detected on an aircraft?

A smoke signal from any smoke detector will trigger a fire alarm at the flight deck. This is a “single loop” system because any single detector can set off the fire alarm. All cargo compartments have multiple smoke detectors. This main deck cargo compartment has 18 smoke detectors.

What devices are used as overheat or fire detectors in aircraft?

Units of the system are installed in locations where there are greater possibilities of a fire. Three detector system types in common use are the thermal switch, thermocouple, and the continuous loop.

What is fire detector system used in aircraft?

Several different types of fire detection system are installed in aircraft to detect engine fires. Two common types used are spot detectors and continuously loop systems. Spot detector systems use individual sensors to monitor a fire zone. Examples of spot detector systems are the thermal switch system, the thermocouple system, the optical fire detection system, and the pneumatic-based thermal fire detection system.

What is the function of a fire detection system?

The field of fire detection has advanced to where smoke detectors and alarm devices have combined to become life-safety systems. The purpose of an automatic fire-alarm system is to detect an occurrence, alert the control panel and proper authorities, and notify the occupants to take action.

What are the types of fire detectors?

The four types of fire detectors are heat, ionization, photoelectric, and ionization/photoelectric. The differences in each of these how they detect fires, heat being from temperature, and the other three being from smoke.

What are aspirating smoke detection systems?

An aspirating smoke detector (ASD) is a system used in active fire protection , consisting of a central detection unit which draws air through a network of pipes to detect smoke. The sampling chamber is based on a nephelometer that detects the presence of smoke particles suspended in air by detecting the light scattered by them in the chamber.