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This paper describes how a modern high power four-stroke lean burn gas engine can be effectively utilized to drive a centrifugal compressor in main transmission applications. The engine operates at a constant 750 rpm while operational compressor speed is achieved through a multi-stage variable speed gear fitted between the engine and compressor. The low engine fuel consumption (5800 Btu/hph) is maintained across a broad range of operating and ambient conditions. This significantly reduces operating expense giving the operator considerable flexibility in responding to variable demand with little or no efficiency penalty. Low package maintenance expenditure ($32/hp-yr) contributes to an overall low life cycle cost. The resultant system provides a viable alternative to a gas turbine driven centrifugal compressor. The paper will also present a view from the end user's perspective as to what the driving factors were to work to develop the concept and the perceived benefits to the gas transmission industry.
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List Price $195.00