|Table of Contents|

Energy efficiency model of marine main engine(PDF)

《交通运输工程学报》[ISSN:1671-1637/CN:61-1369/U]

Issue:
2015年04期
Page:
69-76
Research Field:
载运工具运用工程
Publishing date:

Info

Title:
Energy efficiency model of marine main engine
Author(s):
FAN Ai-long1; 2; 3;  YAN Xin-ping1; 2; 3;  YIN Qi-zhi1; 3;  SUN Xing2;  CHEN Qian-kun2;  ZHANG Yong-bo3
1. National Engineering Research Center for Water Transport Safety, Wuhan University of Technology, Wuhan430063, Hubei, China; 2. School of Energy and Power Engineering, Wuhan University of Technology, Wuhan 430063, Hubei, China; 3. Key Laboratory of Marine Power Engineering and Technology of Ministry of Communications, Wuhan University of Technology, Wuhan 430063, Hubei, China
Keywords:
marine engineering;  energy efficiency of main engine;  hull-engine-propeller relationship;  fuel consumption;  water speed
PACS:
U664.1
DOI:
-
Abstract:
According to the hull-engine-propeller relationship, the energy efficiency model of marine main engine was established based on the energy transfer within marine power plant and MATLAB/Simulink simulation platform. An inland river cruise ship was chosen as a research object, and the open-water characteristic curves of propeller were obtained by using the regression polynomial method according to the parameters of hull and main engine. Several sensors(such as fuel consumption instruments)were amounted on the target ship, the instantaneous fuel oil consumption of main engine, the marine speed relative to ground, and the marine speed relative to water were collected, and the real main engine energy efficiencies were calculated. The distribution characteristic of water speed was analyzed according to actual collected data. The energy efficiencies of main engine under different water speeds and marine speeds relative to water were calculated based on the simulation model. The actual data and simulation results were compared and analyzed, and the model was verified. Verification result indicates that water speeds are almost normal distribution with skewness of -0.032, the one-to-one correspondence between real energy efficiency and marine speed relative to water is not observed, but their relationship is a scattered distribution with correlation coefficient of 0.824. The established energy efficiency model can accurately evaluate the energy efficiency level and changing rule of main engine in navigation process, and the error is less than 10.5%. 3 tabs, 11 figs, 26 refs.

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Last Update: 2015-08-30