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1 <br />1 <br />1 <br />1 <br />1 <br />1.05 PERFORMANCE REQUIREMENTS <br />A. The gas flare shall be designed and constructed to meet the following <br />minimum performance specifications: <br />Maximum Btu/hour (HHV) the flare is capable <br />28 MMBtu/hour <br />of burning and still meet all s cifications(l) <br />Minimum Btu/hour (HHV) the flare is capable <br />4 M1v1Btu/hour <br />of burning and still meet all s ifications <br />Flare design flow rate with LFG within <br />200 to 800 SCFM <br />methane concentration range <br />Maximum back pressure at 800 SCFM <br />7 inches water column (WC) <br />measured upstream of the automatic shutdown <br />valve, flame arrestor and burner assembly <br />Methane concentration in LFG <br />20 to 55 percent <br />Carbon dioxide in LFG <br />15 to 45 percent <br />Oxygen in LFG <br />0 to 5 percent <br />Nitrogen in LFG <br />Balance <br />Water vapor in LFG <br />Saturated at inlet <br />Non -methane hydrocarbon content (as Cl) <br />0-18,000 PPM <br />Hydrogen sulfide concentration <br />0-150 PPM <br />Minimum flare retention time measured <br />0.6 seconds at 800 SCFM of <br />between the burner and seven feet below the <br />landfill gas and 28 MM BTU/Hr. <br />top of the flare housing <br />Normal operating temperature range for the <br />1400 - 1800 degrees F. <br />flare (Note: The flare combustion temperature <br />will be controlled to meet the emission <br />requirements. The vendor shall indicate in the <br />submittal the estimated temperature range the <br />flare can be operated over and still meet the <br />emissionguarantees.) <br />Maximum allowable concrete temperature <br />200 degrees F. <br />below the flare <br />Maximum allowable external flare skin <br />250 degrees F. <br />temperature <br />t''For the purpose of Btu loading calculations, methane is assumed to 1112 Btu/Ft.' <br />North County LFG Collection System <br />San Joaquin County Public Works <br />3 FLARE STATION ENCLOSED GROUND FLARE <br />Section 11550 <br />