The Enclosed Ground Flare destroys a waste stream, but does not maintain a constant temperature while doing so, simplifying the control scheme, and allowing the overall system to be more economical. These systems allow for reduced flame visibility, minimal heat and noise, real-time emissions sampling, and smokeless combustion. These flares may require supplemental assist gas streams depending on whether the process stream can sustain combustion. by ensuring proper residence time, Fully Enclosed Ground Flares attain relatively high destruction efficiencies.
When real estate is available, multi-point ground flare (MPGF) systems are an economical approach to smokeless combustion of large amounts of process gas. By inducing air to a large array of high-pressure burning points, smokeless combustion can be achieved with high turndown, while concealing all radiation within walls. MPGF systems provide smokeless capacity an assist medium, involve no moving parts, and require low utilities since burners are designed to crosslight, minimizing the number of pilots necessary. Moreover, MPGF systems eliminate ground level radiation through the use of walls.
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