Influence of mock reformed gas by over-rich SI combustion on HCCI combustion fuelled by methane

Influence of mock reformed gas by over-rich SI combustion on HCCI combustion fuelled by methane

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HCCI combustion is effective for improving thermal efficiency of a gas engine, but it has problems such as control of the ignition and combustion.To solve Assessment of the quality of the healing process in experimentally induced skin lesions treated with autologous platelet concentrate associated or unassociated with allogeneic mesenchymal stem cells: preliminary results in a large animal model the problem, availabilities of dedicated EGR technique are considered to control its ignition and combustion.Dedicated EGR involves reforming fuel into H2 or CO by running a single or more cylinder with rich mixture and supplying the exhaust gas directly into other cylinders.In this study, the effect of dedicated EGR on methane HCCI combustion was investigated by experiments.

As a result, when equivalence ratio of rich Wybrane przestrzenie Wrocławia jako reprezentacje emocji i nośniki nowych znaczeń — studium trzech przypadków SI combustion or EGR ratios increase, the ignition timing of HCCI advances and combustion becomes steep.The advanced ignition timing is caused by an increase of H2 mole fraction in the intake gas.In addition, the possibility of controlling the ignition timing, which is strongly concerned with the thermal efficiency of a HCCI engine, by dedicated EGR was discussed.It was shown that the ignition timing linearly depends on H2 mole fraction in the intake gas.