scholarly journals IMPROVING MARINE DIESEL ENGINE ENVIRONMENTAL PERFORMANCE BY CARBURATION OF DIMETHYL ETHER IN INLET MANIFOLD

2021 ◽  
Vol 2021 (1) ◽  
pp. 36-43
Author(s):  
Alexander Yuryevich Grabarchuk ◽  
Shagor Muhammad Robiuzzaman
Keyword(s):  
Diesel Engine ◽  
Electronic Control Unit ◽  
Control Unit ◽  
Scientific Work ◽  
Marine Diesel Engine ◽  
Electronic Control ◽  
Additional Component ◽  
Advantages And Disadvantages ◽  
Marine Diesel ◽  
Inlet Manifold

The article highlights the measures to be introduced in order to restrict the hazardous emissions from the marine vessels as a result of increasing attention of the global community to the air pollution problem. The most difficult for ship owners is to adhere to the requirements of MARPOL 73/78 in NECA Tier III. As a result of the analysis of modern widely used methods for reducing harmful emissions of nitrogen oxides from a marine ICE there have been determined the main advantages and disadvantages of these methods. A new method including the additional component supply system, which delivers additional component to an inlet manifold of a marine ICE, and the most suitable additional component were proposed. Main advantages of the proposed system over other systems were determined. The system operation diagram is presented and the academic novelty of the scientific work was determined. The academic novelty consists in using an adapted mathematical model for calculating the main parameters of the system developed. At the current stage of the work, the development of an electronic control unit for the system and additional electronic control unit is in progress. The next stage of the work consists of calculating the main parameters of the system and testing the system in various operating modes of marine diesel engine 3NVD 24

scholarly journals THE DEVELOPMENT OF ELECTRONIC CONTROL ALGORITHM OF FUEL ACTIVATOR INJECTION AT TWO-PHASE MIXTURE FOR-MATION IN AUTOMOTIVE DIESEL ENGINE

2021 ◽  
Author(s):  
М.V. Ryblov ◽  
◽  
М.D. Dubin ◽  
Keyword(s):  
Diesel Engine ◽  
Control Algorithm ◽  
Electronic Control Unit ◽  
Control Unit ◽  
Intake Manifold ◽  
Electronic Control ◽  
Mixture Formation ◽  
Two Phase ◽  
Intake Stroke ◽  
Phase Mixture

The article presents an algorithm of automatic control of injection of fuel activator supplied at the intake stroke into the intake manifold at two-phase mixture formation in the diesel engine. The algorithm represents a command set written in the microcontroller program of electronic control unit of the system performing the injection of fuel activator at the first phase of two-phase mixture formation.

scholarly journals Software Algorithm Synthesis for Diesel Electronic Control Unit

2018 ◽  
Vol 55 (3) ◽  
pp. 16-26
Author(s):  
A. Prohorenko ◽  
P. Dumenko
Keyword(s):  
Control System ◽  
Diesel Engine ◽  
Electronic Control Unit ◽  
Control Unit ◽  
Electronic Control ◽  
Small Companies ◽  
Significant Progress ◽  
Electronic Control System ◽  
Technological Level ◽  
Engine Construction

Abstract Nowadays global engine construction gets significant progress at a technological level, but specified manufacturers do not release any information about the composition, the structure of the algorithms and the software used by their equipment. It is possible to obtain information only fragmentary and, for example, the description of the electronic control unit algorithm is completely missing. This is a barrier for small companies to improve and adjust existing engines for specific purposes. The present paper describes and develops algorithm synthesis for an electronic diesel engine regulator. Mathe-matical modelling of the automatic control system has been carried out within the framework of the research. The results of the research have demonstrated the efficiency and sustainability of automatic electronic control system using the proposed algorithm.

Research on the Semi-Physical Simulation Technology of High Pressure Common Rail Electronic Control System for Low-Speed Marine Diesel Engine

2013 ◽  
Vol 470 ◽  
pp. 226-231
Author(s):  
Qin Peng Wang ◽  
Jian Guo Yang ◽  
Yong Hua Yu
Keyword(s):  
Control System ◽  
Diesel Engine ◽  
Test Bench ◽  
Physical Simulation ◽  
Marine Diesel Engine ◽  
Electronic Control ◽  
Simulation Technology ◽  
Low Speed ◽  
Electronic Control System ◽  
Marine Diesel

In this paper, the semi-physical simulation technology is introduced with the design and implementation of a semi-physical simulation test bench. A certain low-speed marine diesel engine of high pressure common rail (HPCR) electronic control system is taken as the subject of the test bench. In order to retain the functional and structural features of the HPCR electronic control system, the essential components are in consistent with the target engine, and some auxiliary parts are simplified and reformed. Specially, a real-time simulation model is built based on the principles of Mean Value Engine Model and cylinder moving method, which captures the requirements of ECU, such as the crank angle, the exhaust valve stroke signal, the scavenging pressure and so on. Therefore a closed-loop control system is accomplished including a real-time controller deployed in the simulation model, ECU and the executing agency of HPCR system. Additionally a monitoring management system is developed for the test bench with the functions of acquiring signals, monitoring parameters, storing data, alarming and etc. Finally, some tests are finished in the test bench and through analyzing the experimental results, the test bench can perform the characteristics and functions of the HPCR electronic control system. The semi-physical simulation technology can be used for the functional verification and performance test of HPCR electronic control system for the low-speed marine diesel engine.

scholarly journals RT-flex 60C Marine Diesel Engine

2004 ◽  
Vol 118 (1) ◽  
pp. 10-19
Author(s):  
Jacek MAŃCZAK
Keyword(s):  
Diesel Engine ◽  
Fuel Injection ◽  
Exhaust Valve ◽  
Marine Diesel Engine ◽  
Electronic Control ◽  
Design Issues ◽  
Marine Diesel ◽  
Fundamental Design ◽  
Valve Actuation

Fundamental design issues for the new Sulzer RTA60C engine currently introduced by Wärtsila to the ship newbuilding market, the concept of electronic control – the RT-flex control applied on the mentioned engine – for fuel injection and exhaust valve actuation as well as the sequence of starting the two-stoke engine are covered in the present article1) .

scholarly journals Electronic Control Operation of Fuel Injection, Inlet and Exhaust Valve on Marine Diesel Engine.

2002 ◽  
Vol 37 (3) ◽  
pp. 220-226
Author(s):  
Yosio Takasugi ◽  
Eiko Isimura ◽  
Sumito Nisio ◽  
Atsuto Ohashi ◽  
Magosiro Kuwabara ◽  
...  
Keyword(s):  
Diesel Engine ◽  
Fuel Injection ◽  
Exhaust Valve ◽  
Marine Diesel Engine ◽  
Electronic Control ◽  
Control Operation ◽  
Marine Diesel
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