Welcome back to LNG4U — your weekly roundup of the stories shaping the global LNG industry. We begin with an insight to put this week’s developments into perspective, then take you through the headlines worth your attention — from market trends and pricing to shipping, terminals, offshore projects, and everything in between. Here’s what you need to know this week.
🎓 LNGKnowledge
What is the Flammability range of Methane, Oxygen and Nitrogen Mixtures ❓
The limit of flammable range is the difference between the minimum and maximum concentration of vapour (% by volume) in the air that forms a flammable mixture 🔥.
The upper and lower limits of the flammable range for a substance are usually abbreviated to 👉 LFL (Lower Flammable ~ Limit) and 👉 UFL (Upper Flammable Limit).
At the below illustration, the area 1️⃣, above the UFL, is termed over rich i.e. there is insufficient air to support a flammable gas/air mixture.
The area 2️⃣, from LFL to the UFL of the gas, is its flammable range.
The area 3️⃣, below the LFL, is termed too lean i.e. there is insufficient gas(fuel) to mix with the available air to create a flammable combustive mixture.
All of the liquefied gases, the values of the flammable range are variable 📊. The flammable range of a vapour widens dramaticallyin the presence of pure oxygen 🌎. The lower flammable limit is little affected, but the upper flammable limit is considerably raised.
Source : Cargo operating manual
