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Method and device for early warning of fuel consumption rate of marine low-speed diesel engine

A technology of fuel consumption rate and fuel consumption, which is applied in the field of ships

Active Publication Date: 2018-09-25
CSSC SYST ENG RES INST
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Problems solved by technology

[0009] In view of the above analysis, the present invention aims to provide a data-driven low-speed diesel engine fuel consumption rate early warning method and device to solve the problem in the prior art that there is no real-time measurement of low-speed diesel engine fuel consumption data during the operation of the ship. The problem with fuel consumption rate assessment

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  • Method and device for early warning of fuel consumption rate of marine low-speed diesel engine
  • Method and device for early warning of fuel consumption rate of marine low-speed diesel engine

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[0046] Preferred embodiments of the present invention will be specifically described below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of the application and are used together with the embodiments of the present invention to explain the principle of the present invention.

[0047] Usually, the low-speed diesel engine factory bench test will give a single value of the fuel consumption rate under the rated power of the diesel engine as a key indicator for evaluating the performance of the machine. However, when the low-speed diesel engine is actually running after it is installed on the ship, its fuel consumption rate changes with the real-time rotational speed, that is, the fuel consumption rate of the low-speed diesel engine during sailing g e is a nonlinear function about the speed s, and both the fuel consumption rate and the power of the diesel engine are related to the speed. Therefore, the relationship model between f...

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Abstract

The invention relates to a data-driven method and device for early warning on the fuel consumption rate of a low-speed diesel engine of a ship. The method comprises the steps that a measured value for evaluation is selected, and the fuel consumption rate measured value ge, relevant to the rotational speed, at a corresponding moment in the underway stable running process and the rotational speed measured value s within the corresponding moment are obtained; according to the rotational speed measured value s and the fuel consumption rate measured value ge in the underway stable running process, a two-dimensional measurement incidence relation between s and ge is established; a rotational speed-fuel consumption rate evaluation model (please see the description) is obtained by training the two-dimensional measurement incidence relation between s and ge, and finally the rotational speed-fuel consumption rate evaluation model ge (s) is obtained; according to the rotational speed-fuel consumption rate evaluation model ge (s), the minimum value ge (s*,) equal to min ge (s) of the fuel consumption rate and the corresponding rotational speed s* in the underway stable running process are found out; meanwhile, the fuel consumption rates (please see the description) under all typical rotational speed working conditions (please see the description) are given, and if the deviation of the fuel consumption rate of the actually underway low-speed diesel engine from the evaluation model ge (s) of the corresponding rotational speed exceeds a predetermined value, an early warning is sent out.

Description

technical field [0001] The invention relates to the technical field of ships, in particular to a data-driven early warning method and device for the fuel consumption rate of a low-speed diesel engine of a ship. Background technique [0002] As a means of transportation with a large volume of transportation, ships account for 40-60% of their operating costs to fuel consumption. Among them, the most common main engine of a ship is a low-speed diesel engine. As the "heart" of the ship's power, its fuel consumption is usually It accounts for more than 90% of the fuel consumption of the whole ship; taking an ocean-going 10,000-ton ship as an example, its low-speed diesel engine consumes more than 20-30 tons of fuel per day of voyage, which greatly affects the ship operating costs of shipping companies, especially in In the current sluggish shipping market environment, how to reduce costs and increase efficiency has become the focus of attention of shipping companies; at the same ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01F9/02
CPCG01F9/023
Inventor 魏慕恒何晓邱伯华蒋云鹏朱武刘成明
Owner CSSC SYST ENG RES INST
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