Agricultural irrigation pumps are frequently powered by common automobile or tractor spark-ignition (SI) engines burning natural gas. Typically, these engines operate at part-throttle and at constant speed and load. Investigated was the fuel consumption reduction that occurs with application of the more-complete-expansion cycle. Using a Chevrolet 5.74 liter (350 cubic inch) displacement engine for calculation purposes, fuel consumption rates are predicted as 12 to 16% less than a conventional engine (reference case). Economic analysis reveals that with irrigation pumps operating from 1000 to 2000 hr/year, the cost of modification is recovered by fuel savings (SO.97 per kg of natural gas) in one to two years.


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    Titel :

    The More-Complete-Expansion Cycle Applied to Irrigation Engines


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:

    Kongress:

    1988 SAE International Off-Highway and Powerplant Congress and Exposition ; 1988



    Erscheinungsdatum :

    01.09.1988




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




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