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1
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Journal of KONES
EN Regulations concerning the limitation of harmful compounds emission contained in exhaust gases become more restrictive. This is observed within regulations regarding land-based installations and also rules applied to ships of global trade fleet. Other restrictions of vessels emissions, enclosed in r[...]
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Journal of KONES
EN The practical design of the marine engine multi in-cylinder pressure acquisition system has been presented. The system operational properties and measurement methodology is aimed the online marine diesel engine applications. The design of engine combustion pressure recording system is based on piezo[...]
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Journal of KONES
EN Currently, the Baltic Sea States suggests a proposal to designate the Baltic Sea as an Emission Control Area for nitrogen oxides, in accordance with Annex VI of MARPOL73/78. The emission would be estimated on the data produced by the AIS (Automatic Identification System) system that is compulsory fo[...]
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Journal of KONES
EN The issues connected with the amount of lube oil in engine oil system are real problems in marine diesel engines maintenance process. The amount of lube oil in circulation influences its quality and consequently the wear of lubricated parts. That amount still changes and is connected with lubricatin[...]
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Journal of KONES
EN In the paper has been presented the analysis of diagnostic utility of signals, deriving from torque (measured value is an instantaneous shaft's torsion angle, torque value is subsequently calculated basing on shaft's steel Kirhoff's modulus or Young's modulus values) and angular acceleration of the [...]
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Journal of KONES
EN Vibro-acoustic diagnostic methods which are used on marine high-speed diesel engines with turbochargers are presented in this paper. Vibration and acoustic signals generated by turbochargers need different signal processing methods to be effective and faultless in turbochargers diagnostics. Diagnost[...]
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Journal of KONES
EN In 2008 the International Maritime Organization - IMO decided to strengthen the requirements for new ships from 2011 - Tier II. However, for Emission Control Areas (ECAs), such as the Baltic Sea, stringent rules will apply from 1 January 2016 for new ships - Tier III. The new standards introduce res[...]
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Journal of KONES
EN The common demands for environmental protection in shipping are being recognized by IMO, through development of the rules with respect to SOx and NOx. This paper investigates the results of fuel injection variables, affecting cylinder process performance and exhaust gas emission. The effect of injec[...]
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Journal of KONES
EN The control of nox emissions from marine engines proves a challenge. Diesel engine manufacturers have been investigating a variety of methods with aim of reducing nox emissions. Currently, the plasma technology is undergoing rapid development in application to diesel engine exhausts. A combination o[...]
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Journal of KONES
EN This paper describes the experimental method - using non-thermal plasma reactor to cleaning exhaust gases - focused on PM compound. The demonstrator NTP reactor assembly was built as the by-pass in the real exhaust gas after-treatment system, in marine diesel engine. The reactor used to experiment i[...]
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Journal of KONES
EN Marine diesel engines have changed their construction last years because of electronic control implementation in fuelling process. Electronic control implementation could be also important in valve gear mechanism which is main part of the engine gas es exchange system. In this paper problems connect[...]
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Journal of KONES
EN In recent years modelling has been applied to investigation of mixture formation, fluid flow, combustion process and pollutant formation in diesel engines. In this study numerical simulation was carried out to investigate the effect of fuel spray characteristics in marine medium speed diesel engine [...]
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Journal of KONES
EN Large seagoing vessels are one of the largest pollution sources in the sea environment world. Marine engines operate with extremely low quality fuels contaminated by sulphur and aromatic compounds. Vessels are responsible for an estimated 14 percent total nitrogen oxide emission and 16 percent sulph[...]
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Journal of KONES
EN The following paper introduces us to possibility of using visualization to present running point of main marine diesel engine during ship operation. Construction development of ship marine diesel engine going towards more and more power results in large mechanical and thermal load. So ship marine di[...]
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Journal of KONES
EN This paper explores the feasibility ofusing in-cylinderpressure-based variables in terms of certain class of errors, caused by indirect pressure measurement. Experimental direct in-cylinder measurement pressure setup was constructed, to make comparisons with standard indicator channel and indicator [...]
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Journal of Polish CIMAC
EN The injection system of a marine diesel engine is one of the most important functional systems, but it also belongs to the most failure prone. This article presents chosen damage of main elements of the injection equipment. The causes of their failures and characteristic effects connected with their[...]
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Journal of Polish CIMAC
2011 Vol. 6, no 2 127-136
EN The paper deals with diagnostic issues concerning endoscopic examinations of working spaces within marine diesel engines. In the beginning, endoscopy apparatus being on laboratory equipment of the Department of Ship Power Plants of Gdansk University of Technology has been characterized. The endoscop[...]
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Journal of KONES
EN The paper presents results of the calculation, based on simplified engine model, aimed on prediction of IAS (Instantaneous Angular Speed) of the crankshaft fluctuations under faulty engine condition. Gas forces were calculated basing on results of in-cylinder pressure measurements which were used as[...]
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Journal of Polish CIMAC
2007 Vol. 2, no 1 519-526
EN Delivering water to cylinders is a means of restricting the emergence of nitrogen oxides in the combustion process in SI engines. In consequence of feeding the engine with fuel-water emulsion with simultaneous decrease of nitrogen oxides in the exhaust gases, there occur changes in the concentration[...]
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Journal of KONES
2013 Vol. 20, No. 2 253--259
EN Indicating of large marine and industrial diesel engines is made with using indicating channels in cylinder head with valves. The impact of these channels on the value of the parameters obtained from indicating is significant. However, indicating is commonly used for comparative tests assuming that [...]
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