During recent years there has been a marked increase in the cylinder pressure at the start of injection in medium-speed marine diesel engines. This increase demands a basic investigation on the combustion processes in the high pressure and high temperature atmosphere. From the standpoint, the authors constructed a high pressure chamber for the experiments of injected fuel spray and a constant volume combustion chamber for the experiments of combustion processes. These chambers are capable of investigating the diesel engine combustion in the higher pressure charge than in the other earlier investigations and of simulating the combustion processes in medium-speed marine diesel engines. The following conclusions can be drawn in this investigation: The fuel spray consists of penetration part and dilution part. The air entrains almost normally into the spray and the air around dilution part is pushed aside by the spray. Characteristics of flames in the combustion processes are classified into some marked phenomena owing to initial pressure, initial temperature and oxygen concentration.
Investigation on combustion in medium-speed marine diesel engines using model chambers
Verbrennungsuntersuchung an mittelschnelllaufenden Schiffsdieselmotoren mit einem Modellbrennraum
1977
48 Seiten, 39 Bilder, 2 Tabellen, 22 Quellen
Conference paper
Storage medium
English
Investigation on combustion in medium-speed marine Diesel engines using model chambers
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