Experimental study of co-combustion ratio on fuel consumption and emissions of NG-diesel dual-fuel heavy-duty engine equipped with a common rail injection system
A common rail engine for heavy-duty vehicles is fuelled with LNG–diesel dual-fuel.
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Excess air ratio of pre-mixed NG–air mixture is given and analyzed.
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The dual-fuel mode at low loads suffers from poor fuel consumption, high HC and CO.
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The largest co-combustion ratios should be selected for all operating conditions.
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