An Experimental Study of Emission and Combustion Characteristics of Marine Diesel Engine with Fuel Injector Malfunctions

Polish maritime research

Jerzy KowalskiCorresponding authorPh.D., Department of Engineering Sciences Morska 81-87 Street 81-225 Gdynia Poland, tel.: [phone] fax: [phone]EmailOther articles by this author:De Gruyter OnlineGoogle Scholar¹ 

[1] Ph.D., Department of Engineering Sciences Morska 81-87 Street 81-225 Gdynia Poland, tel.: [phone] fax: [phone]

关键词: Keywords: marine diesel engine;    exhaust gas composition;    toxic emission;    laboratory investigation;    fuel injector malfunctions;   

DOI  :  10.1515/pomr-2016-0011

学科分类：工程和技术（综合）

来源: Politechnika Gdanska * Wydzial Oceanotechniki i Okretownictwa

【 摘 要 】

The presented paper shows the results of the laboratory study on the relation between chosen malfunctions of a fuel injector and composition of exhaust gas from the marine engine. The object of research is a marine 3-cylinder, four-stroke, direct injection diesel engine with an intercooler system. The engine was loaded with a generator and supercharged. The generator was electrically connected to the water resistance. The engine operated with a load between 50 kW and 250 kW at a constant speed. The engine load and speed, parameters of the turbocharger, systems of cooling, fuelling, lubricating and air exchange, were measured. Fuel injection and combustion pressures in all cylinders of the engine were also recorded. Exhaust gas composition was recorded by using a electrochemical gas analyzer. Air pressure, temperature and humidity were also recorded. Emission characteristics of the engine were calculated according to ISO 8178 standard regulations. During the study the engine operated at the technical condition recognized as „working properly” and with simulated fuel injector malfunctions. Simulation of malfunctions consisted in the increasing and decreasing of fuel injector static opening pressure, decalibration of fuel injector holes and clogging 2 neighboring of 9 fuel injector holes on one of 3 engine cylinders.

【 授权许可】

Unknown