Flare Systems
Flares - General Information
Flare systems are typically used for controlling Methane (CH4) and Carbon Dioxide (CO2) that is a byproduct from biodigestion. Landfills can generate an abundance of Methane which will escape into the atmosphere if not addressed, causing regulatory compliance and odor issues. These gases are typically extracted under a negative pressure and the gas is used to make electricity or as a raw fuel stock for a boiler system. All landfills that utilize this gas must have a contingency that allows excess gas to be burned off. This is typically where flares will be used as an integral part of the system design. The two main types of flares are Candlestick Flares and Enclosed Ground-Flares. PRM can design a flare system to meet your off-gas requirements.
Candlestick Flares
A candlestick flare is a basic flare that is used primarily for combusting excess landfill or other biogas generated by a municipal landfil or other bio-Methane producers such as bio-digestors. Candlestick flares burn the concentrated fume which is typically 40%-55% Methane by discharging the gases through a discharge pipe and through a windshield. As the gases discharge, they are exposed to a pilot that will initially ignite the gases. Sustained combustion is typical without a pilot however the pilot is available to actuate as needed. Candlestick Flares are typically monitored by a thermocouple and/or UV Flare scanner for Flame activity. A candlestick Flare will combust >98% of constituents when operated properly.
PRM manufactures Candlestick Landfill Gas Flare with capacities from 250CFM to 5000CFM.
Flare packaged meet destruction efficiencies as required in EPA 40CFR , 60.18. Flare are designed in accordance with AP-42 standards.
Enclosed Ground-Flares
An enclosed ground-flare is a flare which combusts the gases inside a insulation lined combustion chamber. Enclosed are used for regulatory compliance, higher efficiency and they are ascetically appealing as the flame is concealed. Typical destruction in enclosed flares is >99%. An enclosed ground-flare system is higher in capital costs than a candlestick flare system.
Rental Flares
Please contact PRM for lease pilot flares. PRM has systems available that can be used for short term pilot testing or longer term mitigation systems.