English
资源说明：In this study, a homogeneous mixture of natural-gas and
air was used in a compression ignition engine to reduce
NOx emissions and improve thermal efficiency. In order
to control ignition timing and combustion, a small amount
of DME was mixed with the natural-gas. Engine performance
and the exhaust characteristics were investigated
experimentally. Results show the following: the engine
can run over quite a large load range if a certain amount
of DME is added into natural-gas. By optimizing the proportion
of DME to natural-gas, NOx emissions can be
lowered to near zero levels if the mixture is lean enough.
Thermal efficiency is higher than that obtained with normal
diesel fuel operation.
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