Flame maps are produced by the CAD software, which comprise all the possible flame radiuses with an increment of one-mm between them, according to the spark plug positions, spark timing, and piston position near the top dead center. Draw cylinder in pyrosim software#In order to provide QD thermodynamic models applicable to complex combustion chamber geometries, a novel approach is considered here: flame-maps, which utilizes a computer aided design (CAD) software (SolidWorks). The previous work examined the effects of plug-number and location on some performance parameters considering an engine with a simple cylindrical disc-shaped combustion chamber. This study builds on a previous parametric investigation using a thermodynamic-based quasi-dimensional (QD) cycle simulation of a spark-ignition (SI) engine with dual-spark plugs. International Nuclear Information System (INIS) Quasi-dimensional modeling of a fast-burn combustion dual-plug spark-ignition engine with complex combustion chamber geometries Furthermore, a higher boost pressure was used to prevent fuel film formation. In addition, the optimization results showed that the optimum engine operating conditions employed a premixed charge compression ignition combustion regime with early injection and a narrow spray included angle. Through the preset optimization, a 35% improvement in the gross indicated that specific fuel consumption was achieved. In addition, the computational models were validated against the experimental results for a stoichiometric process in terms of the combustion pressure history and emissions. Draw cylinder in pyrosim generator#In addition, an auto mesh generator was developed for generating various kinds of combustion chambers, such as open-crater, re-entrant, deep, and shallow types. The optimization variables were composed of ten variables related to the combustion chamber geometry and engine operating conditions. The KIVA code, coupled with a micro genetic algorithm population of nine for each generation was used. This paper describes the optimization of combustion chamber geometry and engine operating conditions for stoichiometric diesel combustion, targeting lower gross indicated specific fuel consumption. Optimization of combustion chamber geometry for stoichiometric diesel combustion using a micro genetic algorithmĮnergy Technology Data Exchange (ETDEWEB)
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