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1 <br />1 <br />1 <br />1 <br />1 <br />1 <br />1 <br />1 <br />1 <br />1 <br />A. Blower construction material <br />shall be suitable for long-term service to <br />deliver gas with the following characteristics: <br />Methane <br />20-55 percent <br />Carbon dioxide <br />15-45 percent <br />Oxygen <br />0-5 percent <br />Nitrogen <br />0-60 percent <br />Hydrogen sulfide <br />150 ppm <br />Water <br />Saturated at inlet conditions with some <br />water carryover•, no slugs of water <br />Specific gravity of <br />0.96 <br />landfill gas (for blower <br />design purposes) <br />Organic contaminants <br />2.03 SITE COMPATIBILITY <br />Up to 0.5 percent of various non -methane <br />hydrocarbons, including aromatic and <br />chlorinated hydrocarbons and some <br />organic acids. <br />A. The blower shall be suitable for installation in the following location: <br />Location Outdoors <br />Area classification Class I, Division II, Group D <br />Maximum ambient air 120OF <br />temperature <br />Minimum ambient air 0°F <br />temperature <br />Average elevation above 100 ft. <br />mean sea level <br />Solar radiation 200 btu/hr. ft? <br />U131, J 0 RMY1 <br />A. Internal: The blower housing shall be coated with a baked -on coating per <br />the manufacturer's recommendation for landfill gas service. The <br />aluminum impellers do not require coating. <br />B. Exterior: In addition to the manufacturer's standard primer and topcoat, <br />the Contractor shall apply a finish paint coat to the blower per section <br />North County LFG Collection System 3 FLARE STATION LANDFILL GAS BLOWER <br />San Joaquin County Public Works Section 11551 <br />