v Natural Gas is a composition of hydrocarbons (90% + Methane & rest other Hydro Carbons)
v Its calorific value generally ranges from 8000 kcal/m3 to 9000 kcal/m3
v It is flammable, lighter than air and invisible but produces mist in contact with moist air.
v Important Properties of Natural Gas
||Odorless (For easy detection through smell, Ethyl Mercaptan is added as Odorant)
||- 0.6 to 0.7
||5 to 15% by volume in air
|Auto ignition temp
v Physical Properties
It has a limited range of flammability, somewhere in the range of 5% to 15% against 2% for LPG. Natural gas has a higher ignition temperature of approximately 1100 degrees Fahrenheit. Comparatively both petrol and diesel fuel have lower concentrations of flammability and lower temperatures of ignition.
v Fuel density
Natural gas is lighter than air. If natural gas leaks, it has a tendency to rise up in the air. Comparatively both petrol and diesel fuel are dense liquids that tend to pool and are easily ignitable.
Raw natural gas is odor less. A distinctive odorant that smells much like sulphur is added prior to distribution. The strong odor makes the presence of a leak very easy to detect.
Natural Gas is generally considered non-toxic. Inhalation of higher concentration of Natural Gas can cause headache, dullness, breathing trouble and unconsciousness.
Natural gas is very safe, clean and eco friendly fuel.