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Construction Air Permit <br /> 3 .0 PROJECT DESCRIPTION <br /> Ameresco is proposing two LFG-fired IC engines for a LFGTE facility and a waste gas flare. <br /> 3. 1 PROPOSED OPERATION <br /> The new LFG-fired IC engines and flare will be located at the far east of the landfill as shown in <br /> Figure 2. The IC engines and flare will be fired on LFG from the Forward Landfill. <br /> Ameresco has proposed to install two GE Jenbacher 616 (Gensets); the gensets include an IC <br /> engine and electrical generator along with associated controls and enclosure. The IC engine <br /> component of the Genset is manufactured by GE. The performance specifications and specific <br /> make and model numbers for the Genset system are included in Appendix B. <br /> ABUTEC has prepared equipment specifications for the proposed flare,which are included in <br /> Appendix C. Below are some of the highlights: <br /> Quantity: One <br /> Manufacturer: ABUTEC <br /> Type: High Temperature Enclosed Flare <br /> Vent Gas Stream Temp: 200-450 degrees Fahrenheit(*F) <br /> Operating Temperature: 1,500 -F—2,100 -F (1,800 `F Nominal) <br /> Vent Gas Flow Rate: 1,900 scfm of contaminated air <br /> Inlet Fuel Flow Rate: 200 scfm of LFG at 47% methane or 188 scfm of LFG at <br /> 50% methane <br /> Height of the outlet: 30' <br /> The proposed Gensets will operate continuously 24 hours per day, 7 days per week, 52 weeks per <br /> year. <br /> 3.2 DESIGN BASIS <br /> The design gas flow rate for the proposed LFG-fired IC engines is based on the optimum rate to <br /> fully load the Genset and operate at optimum efficiency. <br /> Approximately 942 scfm of LFG at 319 BTU/scf- LHV is required at 100% load to produce <br /> 2.175 MW of power for the Genset. <br /> 3.3 GAS PRE-TREATMENT SYSTEM <br /> The siloxane removal system(SRS) immediately follows a gas compression and mechanical <br /> refrigeration dehydration system which reduces water vapor moisture, dissolved contaminants, <br /> and particulate matter from the LFG. Siloxanes in the LFG are removed using a regenerative <br /> Temperature Swing Adsorption(TSA)process with proprietary solid media blend. The TSA <br /> system consists of two media vessels containing roughly 11,000 lbs of media. Each vessel stands <br /> about 11 feet high with a six foot diameter and designed for a maximum operating pressure of 15 <br /> pounds per square inch, gauge (psig). When the LFGTE facility is operating,there will be one <br /> 4 <br />