Inert gas systems have been required on oil tankers since the SOLAS regulations of 1974. The International Maritime Organization (IMO) publishes technical standard IMO-860 describing the requirements for inert gas systems.

Several technologies for providing inert gas were reviewed including carbon dioxide in gaseous form and as dry ice, nitrogen in gaseous and liquid form, and exhaust gas. The group analyzed the impacts of carrying an on-board inerting system versus a ground- based system.

Inert gas is produced on board commercial and military aircraft in order to passivate fuel tanks. On hot days, fuel vapour in fuel tanks may otherwise form a flammable or explosive mixture which if oxidized, could have catastrophic consequences.

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. Our inerting systems reduce the volatility of the ullage, or air volume above the fuel, in the aircraft fuel tank.

In the context of chemical tanker operations and chemical cargoes, an inert gas system may have three distinct uses: preventing a fire, preventing a chemical reaction or maintaining cargo quality.

When a certain volume of liquid is drawn from a tank, a similar volume of air will enter the tank's headspace, potentially creating an ignitable atmosphere. The inerting systems use an inert gas generator to supply inert make-up gas instead of air. This …

Oct 29, 2024 · The inert gas system’s function is to minimize and if not remove the risk of explosions throughout the tanks by suppressing the combustion gases to a minimum. In addition, inert gas introduced to the tanks contains insufficient oxygen which dilutes the combustion of flammable hydrocarbon gases.

Nov 26, 2022 · The inert gas system is designed and operated to render and maintain a non-flammable atmosphere in the cargo tank at all times until required to be gas free. The system is capable of delivering Inert Gas (IG) at 125% of the maximum rate of discharge.

Ground based inerting (GBI) is defined as inerting a fuel tank ullage on the ground, with either ground-support equipment or onboard systems, and then continuing ground and flight operations, which allows the ullage oxygen concentration to dissipate over time.

Jul 10, 2008 · This SAE Aerospace Information Report (AIR) deals with the three methods of fuel tank inerting systems currently used in operational aircraft: (1) on-board inert gas generation systems (OBIGGS), (2) liquid/gaseous nitrogen systems, and (3) halon systems.