Considerations upon the performances of the main naval engine and energy efficiency evaluation

7th Modern Technologies in Industrial Engineering

工业技术（总论）

Faitar, C.^1 ; Memet, F.^2

Constanta Maritime University, Faculty of Naval Electromechanics, 104 Mircea cel Baton Street, Constanta

900663, Romania^1

Mircea Cel Batran Naval Academy, Faculty of Navigation and Naval Transport, 1 Fulgerului Street, Constanta

900218, Romania^2

关键词: Beat signals;    Energy efficiency evaluation;    Engine parameter;    Operational indicator;    Propulsion motors;    Ship management;    Ship systems;    Top dead center;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/591/1/012108/pdf
DOI  :  10.1088/1757-899X/591/1/012108

学科分类：工业工程学

来源: IOP

【 摘 要 】

Nowadays, the essential source of ship propulsion is the diesel low-speed engine, and the power necessity and rate of propeller rotation especially rely upon the ship's structure and the propeller geometry. Along these lines, in order to arrive at a solution that is as ideal as could be allowed, some broad information is basic for ship diesel engine parameters that impact the propulsion ship system. The performance of any system on board ship is specifically identified with its reliability. So as to get the best out of marine motors, it is critical to screen their performances and take measures to accomplish productive combustion. The paper points the significance of estimating the performances of the propulsion motor utilizing the NHX program. NHX electronic program estimates the pressure inside engine cylinders by the usage of the beat signal from Top Dead Center (T.D.C.) of the number 1 cylinder. Additionally, analyses the after burning period at the combustion stroke of each cylinder. The E.E.O.I. (Energy Efficiency Operational Indicator) is an observing tool for ship management and fleet efficiency. The estimations of the factors have a diminishing trend amid the usage time periods, achieving at least a 30% decrease of the pollutants in the years 2025 contrasted with the values before the implementation of this index. E.E.D.I. index has been considered as the biggest and most dominant sections of the sea business.