Effect of ship loading on marine diesel engine fuel consumption for bulk carriers based on the fuzzy clustering method

2020 ◽  
Vol 207 ◽  
pp. 107383
Author(s):  
Tien Anh Tran
Keyword(s):  
Diesel Engine ◽  
Fuel Consumption ◽  
Fuzzy Clustering ◽  
Marine Diesel Engine ◽  
Engine Fuel ◽  
Clustering Method ◽  
Fuzzy Clustering Method ◽  
Bulk Carriers ◽  
Marine Diesel

Fuel Consumption Modeling for Medium Speed Marine Diesel Engine

2014 ◽  
Vol 1070-1072 ◽  
pp. 1785-1789
Author(s):  
Lei Guo ◽  
Zai Zhong Wang ◽  
Hong Zhao Lin
Keyword(s):  
Diesel Engine ◽  
Fuel Consumption ◽  
Consumption Rate ◽  
Marine Diesel Engine ◽  
Engine Fuel ◽  
Fuel Consumption Rate ◽  
Medium Speed ◽  
Marine Diesel ◽  
Curve Method ◽  
Consumption Model

To predict accurately the fuel consumption rate of a diesel engine, based on polynomial fitting curve method, combined with the test data of XCW6200ZC medium speed marine diesel engine used for inland ships, a diesel engine fuel consumption model about characteristic coefficient and speed under the propulsion characteristic was established. The marine diesel engine fuel consumption were calculated and predicted through this model. The results showed that the model can predict the fuel consumption of diesel engine well.

scholarly journals The influence of fuel injection pump malfunctions of a marine 4-stroke Diesel engine on composition of exhaust gases

2016 ◽  
Vol 167 (4) ◽  
pp. 53-57
Author(s):  
Joanna LEWIŃSKA
Keyword(s):  
Diesel Engine ◽  
Fuel Consumption ◽  
Thermodynamic Parameters ◽  
Laboratory Study ◽  
Fuel Injection ◽  
Marine Diesel Engine ◽  
Fuel Pump ◽  
Engine Cylinder ◽  
Marine Diesel ◽  
Fuel Leakage

The article presents results of a laboratory study on exhaust gas emission level from a marine diesel engine. The object of the laboratory study was a four-stroke marine diesel engine type Al 25/30 Sulzer, operated at a constant speed. The examination on the engine was carried out according to regulations of the Annex VI to MARPOL 73/78 Convention. The laboratory study consisted of 3 observations: the engine assumed to be operating without malfunctions, delay of the fuel injection by 5° of crankshaft angle in the second engine cylinder, and the leakage of the fuel pump on the second engine cylinder. Additionally, parameters of fuel consumption and thermodynamic parameters of the marine engine were measured during the research. Simulated malfunctions caused changes in total weighed NOx, CO, and CO2 emissions for all considered engine loads. All simulated malfunctions caused a small change in measured thermodynamic parameters of the engine. The engine operation with the delayed fuel injection and the fuel leakage in the fuel pump in one cylinder caused a decrease of NOx and CO emission level. Fuel leakage in the fuel pump causes the CO2 emission to decrease only at low engine load. Calculations of the weighed specific fuel consumption present a 1-2% change in the engine efficiency.

scholarly journals Finite-Time Speed Control of Marine Diesel Engine Based on ADRC

2020 ◽  
Vol 2020 ◽  
pp. 1-8
Author(s):  
Yuanqing Wang ◽  
Guichen Zhang ◽  
Zhubing Shi ◽  
Qi Wang ◽  
Juan Su ◽  
...  
Keyword(s):  
Diesel Engine ◽  
Finite Time ◽  
Fuel Injection ◽  
Control Method ◽  
Speed Control ◽  
Marine Diesel Engine ◽  
Engine Fuel ◽  
Control Effect ◽  
Finite Time Convergence ◽  
Marine Diesel

In this paper, in order to handle the nonlinear system and the sophisticated disturbance in the marine engine, a finite-time convergence control method is proposed for the diesel engine rotating speed control. First, the mean value model is established for the diesel engine, which can represent response of engine fuel injection to engine speed. Then, in order to deal with parameter perturbation and load disturbance of the marine diesel engine, a finite-time convergence active disturbance rejection control (ADRC) is proposed. At the last, simulation experiments are conducted to verify the effectiveness of the proposed controller under the different load disturbances for the 7RT-Flex60C marine diesel engine. The simulation results demonstrate that the proposed control scheme has better control effect and stronger anti-interference ability than the linear ADRC.

scholarly journals Diagnostic Model of Fuel Installation of Marine Diesel Engine

2017 ◽  
Vol 6 (2) ◽  
pp. 93-108
Author(s):  
Andrzej Grządziela ◽  
Agata Załęska-Fornal ◽  
Marcin Kluczyk
Keyword(s):  
Diesel Engine ◽  
Technical Condition ◽  
Diagnostic Model ◽  
Marine Diesel Engine ◽  
Engine Fuel ◽  
Fuel Injector ◽  
Engine Vibration ◽  
Marine Diesel ◽  
Internal Forces ◽  
Simulation Errors

The paper presents the results of simulation of marine diesel engine fuel injector malfunction and its effects on engine vibration. The work includes the analysis of the engine internal forces and their mathematical models. Simplifications are proposed to allow analyzing the system in one degree of freedom. The results of vibration simulations for the model with efficient fuel system and improperly adjusted injector are also presented. The comparison of simulation results with vibration measurements on the engine was also performed, the diagnostic model was identified and simulation errors were calculated. The complexity of other internal and external interactions is the subject of other studies by the authors. The paper analyzes only the effects of energy dissipation - vibration as a symptom of changes in the technical condition.

scholarly journals Marine Diesel Engine Exhaust Emissions Measured in Ship’s Dynamic Operating Conditions

Sensors ◽  
2020 ◽  
Vol 20 (22) ◽  
pp. 6589
Author(s):  
Artur Bogdanowicz ◽  
Tomasz Kniaziewicz
Keyword(s):  
Diesel Engine ◽  
Fuel Consumption ◽  
Systems Engineering ◽  
Operating Conditions ◽  
Marine Diesel Engine ◽  
Engine Exhaust ◽  
Exhaust Gases ◽  
Marine Diesel ◽  
Recorded Data ◽  
Dynamic States

The paper presents the results of research on measuring the emissions from marine diesel engines in dynamic states. The problem is as follows: How to measure emissions of the composition of exhaust gases on board a ship, without direct measurement of fuel consumption and an air flow to marine diesel engine, during maneuvering the ship in the port area. The authors proposed a measurement methodology using an exhaust gas analyzer with simultaneous recording of the load indicator, engine speed, inclinometer, and Global Positioning System (GPS) data. Fuel consumption was calculated based on mean indicated pressure (MIP) tests. Recorded data were processed in the LabView systems engineering software. A simple neural network algorithm was used to model the concentrations of ingredients contained in engine exhaust gases during dynamic states. Using the recorded data, it is possible to calculate the emissions of the composition of exhaust gases from the marine diesel engine and calculate the route emissions of the tested vessel.

scholarly journals Combustion and Emissions Investigation on Low-Speed Two-Stroke Marine Diesel Engine with Low Sulfur Diesel Fuel

2019 ◽  
Vol 26 (1) ◽  
pp. 153-161 ◽  
Author(s):  
Zhiyuan Yang ◽  
Qinming Tan ◽  
Peng Geng
Keyword(s):  
Diesel Engine ◽  
Fuel Consumption ◽  
Working Conditions ◽  
Diesel Fuel ◽  
Fuel Injection ◽  
Nox Emission ◽  
Marine Diesel Engine ◽  
Marine Diesel ◽  
Test Engine ◽  
Low Sulfur

Abstract With the implementation and expansion of international sulfur emission control areas, effectively promoted the marine low sulfur diesel fuel (MLSDF) used in marine diesel engines. In this study, a large low-speed, two-stroke, cross-head, common rail, electronic fuel injection marine diesel engine (B&W 6S35ME-B9) was used for the study. According to diesel engine’s propulsion characteristics, experiments were launched respectively at 25%, 50%, 75%, 100% load working conditions with marine low sulfur diesel fuel to analyze the fuel consumption, combustion characteristics and emissions (NOx, CO2, CO, HC) characteristics. The results showed that: Marine diesel engine usually took fuel injection after top dead center to ensure their safety control NOx emission. From 25% to 75% load working condition, engine’s combustion timing gradually moved forward and the inflection points of pressure curve after top dead center also followed forward. While it is necessary to control pressure and reduce NOx emission by delaying fuel injection timing at 100% load. Engine’s in-cylinder pressure, temperature, and cumulative heat release were increased with load increasing. Engine’s CO2 and HC emissions were significantly reduced from 25% to 75% load, while they were increased slightly at 100% load. Moreover, the fuel consumption rate had a similar variation and the lowest was only 178 g/kW·h at 75% load of the test engine with MLSDF. HC or CO emissions at four tests’ working conditions were below 1.23 g/kW·h and the maximum difference was 0.2 or 0.4 g/kW·h respectively, which meant that combustion efficiency of the test engine with MLSDF is good. Although the proportion of NOx in exhaust gas increased with engine’s load increasing, but NOx emissions were always between 12.5 and 13.0 g/kW·h, which was less than 14.4 g/kW·h. Thus, the test engine had good emissions performance with MLSDF, which could meet current emission requirements of the International Maritime Organization.

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