Inert gas systems are essential for safety in various applications, but they come with their own set of challenges.
What are the Disadvantages of Inert Gas Systems? 6 Key Points to Consider
1. Complexity and Maintenance
Inert gas systems, especially those using Air Separation Modules (ASMs) or specialized generators, are complex.
They require regular maintenance to function correctly.
The ASMs involve selectively permeable membranes that need to be in optimal condition to separate oxygen effectively from compressed air.
Any degradation or damage to these membranes can lead to inadequate oxygen removal, posing safety risks.
2. Operational Challenges
The flue gas system, which uses boiler exhaust, must have precise control over the fuel/air ratio in the boiler burners.
If not properly regulated, it can lead to either an excess of oxygen (exceeding safe levels) or the carryover of dangerous hydrocarbon gas.
Both scenarios can compromise the safety of the system.
3. Safety Risks
The systems are designed to prevent overpressure, the return of hydrocarbon gas, or a supply of inert gas with too high oxygen content.
However, any failure in these safety devices can lead to catastrophic consequences, such as explosions or fires, especially in environments where flammable materials are present.
4. Specialized Requirements
For certain applications, such as on gas tankers and product carriers, the requirement for inert gas with an oxygen content of 1% or less necessitates the use of more complex inert gas generators.
These generators add to the overall complexity and cost of the system.
5. Inert Gas Purging Risks
The process of inert gas purging, while essential for managing explosion risks, is not trivial.
Failure to properly manage this process, such as keeping oxygen levels sufficiently low, has been linked to accidents.
This highlights the critical nature of the procedure and the potential dangers if not executed correctly.
6. Cost
The generation and maintenance of inert gas systems can be costly, both in terms of initial setup and ongoing operational expenses.
This includes the cost of specialized equipment, regular maintenance, and the potential downtime associated with system repairs or upgrades.
Continue exploring, consult our experts
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