What type of fuel tank safety system is the nitrogen generation system?

What type of fuel tank safety system is the nitrogen generation system?

inerting system
An inerting system replaces the air with an inert gas, such as nitrogen, which can not support combustion.

Why is nitrogen gas used in fuel tank of Aeroplane?

Nitrogen acts as an inert gas at room temperature which is denser than oxygen. Aircraft fuel inerting systems work by using nitrogen to displace oxygen in the aircraft’s fuel tank, otherwise known as nitrogen purging. A low concentration of oxygen in the tank helps to prevent explosions.

What is tank inerting?

Collins Aerospace’s fuel tank inerting systems improve aircraft safety by reducing oxygen in the fuel tank to prevent combustion, even if a spark is present. As fuel is consumed during flight, the fuel level in the tank is lowered and the remaining oxygen in the ullage is replaced by non-flammable inert gas.

What was the main reason to introduce SFAR 88?

On May 7, 2001 the FAA issued a far-reaching safety rule called ‘SFAR 88’ to minimize ignition sources in fuel tanks. SFAR 88 changed the way airplanes are designed, operated and maintained. By December 6, 2002, manufacturers completed reviews of each airplane model and identified potential ignition sources.

What is the purpose of Obiggs?

The OBIGGS is a system composed of well-proven equipment generating directly Nitrogen on board to fully protect the aircraft tanks against explosion.

Why do airplanes use nitrogen?

Aircraft tires are usually inflated with nitrogen to minimize expansion and contraction from extreme changes in ambient temperature and pressure experienced during flight. The use of an inert gas for tire inflation eliminates the possibility of tire explosion.

Why do we use liquid nitrogen?

Liquid nitrogen, which has a boiling point of -196C, is used for a variety of things, such as a coolant for computers, in medicine to remove unwanted skin, warts and pre-cancerous cells, and in cryogenics, where scientists study the effect of very cold temperatures on materials.

Do planes release nitrogen?

Airplane exhaust, like car exhaust, contains a variety of air pollutants, including sulfur dioxide and nitrogen oxides. (Related: “Pollution Can Change Your DNA in 3 Days, Study Suggests.”)

What is the difference between purging and inerting?

Inerting and purging refer to replacing the atmosphere in a line, vessel or other area with an inert atmosphere, eg the space above liquid fuel in a fuel tank, to reduce the likelihood of combustion. Purging of supply lines, pipelines and tanks is a common step before commencing production or prior to shutdown.

What is the main concern of the SFAR 88?

The package: SFAR 88 requires a massive fuel system safety review and analysis, with three outputs: (1) regulatory changes to ensure that ignition sources in fuel systems are prevented by design, (2) changes to existing fuel systems to eliminate potential ignition sources identified by the safety analysis, and (3) …

Who does SFAR 88 apply to?

This SFAR applies to the holders of type certificates, and supplemental type certificates that may affect the airplane fuel tank system, for turbine-powered transport category airplanes, provided the type certificate was issued after January 1, 1958, and the airplane has either a maximum type certificated passenger …

Why co2 is not used in inert gas?

NFPA 77 states that carbon dioxide from high-pressure cylinders or fire extinguishers should never be used to inert a container or vessel. The release of carbon dioxide may generate static electricity with enough energy to ignite the mixture, resulting in an explosion.

How is nitrogen used in fuel tank inerting?

Fuel tank inerting is an industry-recognised solution that significantly decreases the risk of flammability in aircraft fuel tanks. The Parker Aerospace Fluid Systems Division uses the patented technology of Parker’s Filtration Separation Division to deliver nitrogen-enriched air to fuel tanks, providing a much safer, inert gaseous environment.

What’s the purity of nitrogen in a nitrogen generator?

The process is then multiplely repeated. High nitrogen purity: PSA nitrogen generator plants allow production of high-purity nitrogen from air, which membrane systems are unable to provide – up to 99.9995% nitrogen.

How are nitrogen generators used in fire prevention?

Nitrogen generators are used in hypoxic air fire prevention systems to produce air with a low oxygen content which will suppress a fire. To prevent corrosion, nitrogen generators are used in place of or in conjunction with a compressed air system to provide supervisory nitrogen gas in place of air for dry pipe and pre-action fire sprinkler systems.

Why are mini tanks used for nitrogen generation?

Mini tanks are supplied in various capacities and pressure options. Because of the internal evaporator, flow rates are limited to relatively low levels given the stored capacity. Also due to the internal evaporator, extra time must be allowed for the temperature to achieve a sufficient level so as to ensure complete evaporation of the liquid.