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® WorleyParsons <br /> resources&energy <br /> gas requirements of the CTG. <br /> The fuel gas supply system includes 2 x 100% fuel gas compressor packages which will <br /> control gas pressure and temperature to CTG manufacturer requirements. Each <br /> compressor is sized to provide the natural gas needed for one CTG unit. The <br /> compressor package includes inlet-side scrubber(s) to remove coarse sludge from the <br /> incoming gas, discharge coalescing filter(s), and discharge cooler(s). The inlet scrubber <br /> and discharge coalescing filters will be located on either the gas compressor package <br /> skid or on a separate skid. The discharge cooler will be a separate skid package. The <br /> compressor package will include a recycle system to control discharge pressure across <br /> all CTG operating conditions. <br /> A regulating station will reduce the utility supply gas pressure to match design <br /> conditions at the inlet of the gas compressor. The design will include the capability to <br /> increase the setpoint of the regulating station and manually adjust the volume pockets of <br /> the gas compressor in order to minimize electric power consumption of the compressor. <br /> The fuel gas system will have provision to bypass the gas compressor for unusual <br /> situations where the gas compressor is unavailable and utility line pressure is sufficient <br /> to run the CTG. In such bypass situations, the fuel gas must flow through the inlet <br /> scrubber and discharge coalescing filter in the gas compressor area. <br /> A duplex filter/coalescer will be located downstream of the gas compressor equipment <br /> near the CTG unit. Carbon steel interconnecting piping will be provided from the gas <br /> compressor area to the final filter/coalescer. All piping after the final filter/coalescer <br /> will be stainless steel. Condensate and other waste drained from the filter/coalescer will <br /> be routed to the waste water collection system. <br /> 3.10 Lubricating Oil Systems <br /> Lubricating oil systems will be provided with the CTG and STG including all lubricating <br /> oil pressure and drain piping, as well as all valves, devices, and controls needed for an <br /> operable system. Lube oil pipe will be stainless steel. The CTG and STG lube oil is <br /> cooled by an oil to water heat exchanger. <br /> 3.11 Cranes/Monorails <br /> Equipment will be arranged to allow maintenance to be performed via mobile crane <br /> access to the CTG, STG, and other major equipment. The CTG and STG will include a <br /> monorail lifting beam and hoist for turbine removal. <br /> 3.12 Pumps <br /> 3.12.1 General Service Pumps (200 HP and Smaller) <br /> Lodi Energy Center 3.3 - 13 LEC AFC <br /> 071508 Rev.A <br />