Study and Effect of Ignition Timing on the Combustion Characteristics of Gasoline En 91 in a Spark Ignition Engine

Lungu, Joseph; Siwale, Lennox; Luwaya, Edwin

doi:10.9734/bpi/naer/v1/7257d

Cited by 1 publication

(1 citation statement)

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“…CFD software simulations [6] confirm the increase in combustion pressure when approaching the optimum spark advance. As mentioned in [2,7,9,11], increasing spark advance lowers the exhaust temperature due to a more complete burning process but simultaneously increases the NO x emissions due to the ideal gas law which tells that an increase in pressure corresponds with a higher peak temperature.…”

Section: Introductionmentioning

confidence: 99%

Efficiency optimization of a vehicle combustion engine by the adjustment of the spark advance angle

Kamiński,

Krakowian,

Skrętowicz

et al. 2023

Combustion Engines

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Changing the ignition advance angle has a significant impact on the performance of a combustion engine. Optimization of ignition advance angle is a major task of adjusting engine concerning emission standards, fuel consumption, torque value, etc. The results of the research showed that the process of optimizing ignition advance curve can noticeably increase engine efficiency, as well as torque and power output from the engine, while reducing fuel consumption as a result of lower indications of the air flow mass per second from MAF sensor (mass air flow sensor). The highest impact of the ignition advanced angle modifications can be seen in the area of the highest volumetric efficiency of the tested combustion engine. Almost no impact is observed within high engine speed levels. Simultaneously increasing engine load and rotation speed increases the possibility of engine knocking, which has devastating effect on engine durability.

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Section: Introductionmentioning

confidence: 99%