GROUND FLARES

Often used in combination with an elevated flare, the use of a ground flare offers many advantages, particularly where strict environmental issues have to be considered. The Hamworthy (Airoil-Flaregas) range of ground flare systems include the following:

Chamber Ground Flares

The enclosed chamber ground flare enables flaring without the flame being visible from the chamber itself outside. If plot area is a constraint, the radiation resulting from an open flame can be eliminated, thus reducing the necessary plot size. Dependent on the type of gas to be burned and the pressure of the gas, the enclosed chamber ground flare will normally use a staging system to supply multiple industrial burners with the flare gas. When in operation the natural draught in the combustion chamber enables complete combustion of the gas. When flaring a heavy gas, it is sometimes necessary to use smoke suppression on the first stage, before the full effect of the chamber draught takes effect. This can be achieved using steam or with an air blower.

Open Multi-Point Ground Flares

If a larger plot area is available, combined with a high flare gas pressure, a multi-point ground flare can be used. This enables high smokeless capacities along with reduced visual impact.

Ground Flare System Options

Rich Gas Steam No Steam High Type of Most Available Available Small Weak Heavy Flare Gas Ground Economical Low for for Plot Area Gas Hydrocarbons Pressure Flare Solution Molecular Smokeless Smokeless Available Weight Combustion Combustion (>3 bar g)
Enclosed Chamber EnclosedChamber,steam assisted first stage Enclosed Chamber, air assisted first stage Multi-Point OpenGround Flare