CN108068991A - A kind of ship energy saving method based on trim optimization - Google Patents
A kind of ship energy saving method based on trim optimization Download PDFInfo
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- CN108068991A CN108068991A CN201611029556.9A CN201611029556A CN108068991A CN 108068991 A CN108068991 A CN 108068991A CN 201611029556 A CN201611029556 A CN 201611029556A CN 108068991 A CN108068991 A CN 108068991A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B71/00—Designing vessels; Predicting their performance
- B63B71/10—Designing vessels; Predicting their performance using computer simulation, e.g. finite element method [FEM] or computational fluid dynamics [CFD]
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B71/00—Designing vessels; Predicting their performance
- B63B71/20—Designing vessels; Predicting their performance using towing tanks or model basins for designing
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- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
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- Fluid Mechanics (AREA)
- General Engineering & Computer Science (AREA)
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Abstract
Present invention is disclosed a kind of ship energy saving method based on trim optimization, step is：Ship is established in different drinking water, the speed of a ship or plane, the power consumption under trim establishes data statistic；Database is established according to data statistic, is formed simultaneously three-dimensional mesh curved surface；By in database and three-dimensional mesh curved surface typing ship control terminal to be navigated by water, and pass through display and shown；During ship's navigation the trim value of power consumption minimum is obtained by inputting speed of advance and draft；Driver adjusts ship trim value.A kind of disclosed ship energy saving method based on trim optimization, by pre-establishing the power consumption number under ship different parameters, can make choice, so as to fulfill the energy saving of ship in real navigation for driver.
Description
Technical field
The present invention relates to a kind of ship energy saving method more particularly to a kind of sections by selecting optimal trim value realization ship
It can method.
Background technology
Ship energy saving be China's Resources for construction economizing type and friendly environment society there is an urgent need to.Oil on our times
Resource is increasingly in short supply, and Global Oil residue proved reserves are 1855.23 hundred million tons within 2009, can only be exploited 50 years, natural gas, coal
Also can only exploit for more than 100 years, and the utilization of new energy will fall behind 52 years.International oil price climbs up and up in recent years simultaneously, and annual
The crude oil consumption amount in China is 3.79 hundred million tons, and wherein more than half relies on import, and China's oil resource situation is nervous.2005,
The consumption of petroleum total amount of China Transportation Industry accounts for the 29.8% of whole society's consumption of petroleum amount, the fuel oil of profit-making transport ship
Total amount consumed is 1356.4 ten thousand tons, is expected within 2012 to reach 22,200,000 tons or so.And the marine fuel oil in China utilize and without
Ji, average fuel consumption are higher by 10% or so than developed country.On June 18th, 2008, the carrier energy consumption that Department of Transportation proposes
It is pointed out in index：Compared with 2005, to 2010 and the year two thousand twenty, ship in operation unit transport amount energy consumption declined 10% He respectively
20%, and it is actual up to the end of the year 2010, and ship in operation unit transport amount energy consumption only has dropped 7%, and ship energy saving is China's construction
Conservation-minded society there is an urgent need to.
In addition, the CO2 that ship is discharged in the world at present has reached 11.2 hundred million tons, global main greenhouse gas discharge is accounted for
The 4.5% of amount.There is prediction to think, 400,000,000 tons of fuel oils will be consumed to the year two thousand twenty whole world shipping business, the discharge capacity of greenhouse gases will be in mesh
Before on the basis of increase by 75%, while the NO and SO of ship discharge also the destruction for causing ozone layer and atmosphere pollution are caused it is more serious
Influence.The CO2 discharge capacitys of China Transportation Industry expect 2015 and the year two thousand thirty will respectively reach 5.22 hundred million tons and 11.08
It hundred million tons, wherein will there is 1/4 can be generated by ship, 2009, is pointed out in the global environment meeting of Copenhagen, Chinese Government promises to undertake：
The CO2 discharges for realizing per GDP to the year two thousand twenty declined 40% to 45% target than 2005.For this purpose, China will be control greenhouse
Discharge is included in sustainable economic development overall planning, and it is big that transportation is that the whole society is only second to manufacturing fuel consumption
Family is one of key areas built a resource-conserving and environment-friendly society, and water transport project is as the important of transportation
Component carries forward vigorously energy-saving and emission-reduction, develops green shipping, is to assign our mission the epoch.
In sea-freight industry, the 62nd Marine Environmental Protection Committee that International Maritime Organization (IMO) holds in July, 2011
On (MEPC 62), pass through to enforce EEDI's (ship Energy design index) and SEEMP (plan of ship energy efficiency management)
The amendment of MARPOL pacts (International Convention for the Prevention of Pollution from Ships) ancillary documents VI, effective date are in January, 2013.It is required that
Every ship must aboard ship preserve a specific ship energy efficiency management plan.The MEPC.213 that IMO is issued in March, 2012
(63) requirement for establishing real ship monitoring system, the operation of ship efficiency are proposed on file to SEEMP (plan of ship energy efficiency management)
Index (EEOI) can be considered main monitoring means.
For such case, all ship energy saving is studied both at home and abroad, typically using technological improvement, management improves
Or operation change, however in the ship of some world navigations, bow and stern can be designed to that under certain buoyancy resistance is smaller
Shape, this allows for ship in real navigation, and the floading condition of ship and theoretical floading condition are inconsistent, cause ship's lines that cannot send out
It waves due effect, and how to realize under different floading conditions ship energy saving, the experience of driver can only be leaned on to be adjusted.
The content of the invention
The defects of it is an object of the invention to overcome the prior art, implements the SEEMP of International Maritime Organization (IMO) promulgation
The effective way of (plan of ship energy efficiency management) provides a kind of ship energy saving method based on trim optimization, by pre-establishing
Power consumption number under ship different parameters can make choice in real navigation for driver, rather than just by experience into
Row is adjusted, and ship's navigation energy consumption can be managed, and then is realized energy saving.
To achieve the above object, the following technical solutions are proposed by the present invention：
A kind of ship energy saving method based on trim optimization, specifically comprises the following steps：
A. ship is obtained in different drafts, the speed of a ship or plane, trim item by hydrokinetics calculation or pond simulation test
The main engine power that resistance and needs under part suffered by ship consume, and form data statistic；
B. database will be established in the data statistic typing server generated in step a, and is pressed in a manner of spline curve
Sequence is woven into three-dimensional mesh curved surface；
C. before ship's navigation, by depositing for the database in step b and three-dimensional mesh surface chart typing ship control terminal
In reservoir, and pass through ship display and carry out showing specific form data or three-dimensional mesh curved surface；
D. in ship's navigation, the speed of a ship or plane and draft of ship, control are inputted by the input equipment in control terminal
Terminal is according to the information in the parameter information reading database of input, by ship difference trim institute under the current speed of a ship or plane and draft
The main engine power of consumption extracts, and passes through ship display and shown, so that driver refers to；
E. driver is according to the data on display, the trim of selection power consumption minimum；
F. driver makes ship trim reach above-mentioned value by adjusting ballast water, fuel oil or cargo, and method of adjustment includes
Two kinds：
Method one：Driver controls related equipment to be adjusted, and judges adjustment end point by driver；
Method two：It is adjusted by control terminal instruction relevant device, and adjustment end point is judged by detection device；
Once g. ship speed or draft change, d~f is just repeated the above steps to select suitable trim
Value；
H. in real navigation, with the increase of the age of a ship, since hull appearance is stained, due to machine ages, above-mentioned trim
Lower actual power loss and predicted value have deviation, and database is modified by the aeronautical data of accumulation, so that database is with ship
Age increases and updates.
The data parameters that data statistic includes in the step a are the speed of a ship or plane, draft, trim value and ship power consumption.
In the step d, driver can also voluntarily search the current speed of a ship or plane and draft by three-dimensional mesh curved surface
Under, the trim value of power consumption minimum.
Pond simulation test in the step a, concretely comprises the following steps：Simulation pond is established, ship model is put into simulation water
In pond, by adjusting different drafts, the speed of a ship or plane and trim, the main engine power that ship consumes under parameters is obtained.
Hydrokinetics calculation in the step a, concretely comprises the following steps：It is soft using the hydrokinetics calculation of the industry
Part establishes ship mathematics computing model, by adjusting different drafts, the speed of a ship or plane and trim, obtains ship under parameters and disappears
The main engine power of consumption.
Compared with prior art, the ship energy saving method based on trim optimization that the present invention discloses, by precalculating or
Power consumption of the ship under different drafts, the speed of a ship or plane and trim is tested, and establishes database so that ship driver in navigation
Member only needs reference database to can determine the trim of power consumption minimum, it is achieved thereby that ship is energy saving under different floading conditions.
Description of the drawings
Fig. 1 is the three-dimensional mesh curved surface schematic diagram of the present invention.
Specific embodiment
Below in conjunction with the attached drawing of the present invention, clear, complete description is carried out to the technical solution of the embodiment of the present invention.
A kind of disclosed ship energy saving method based on trim optimization, is primarily adapted for use in ship and adjusts under sail
Whole method of ship floating condition is to realize that low-power arrives at, and so as to fulfill energy saving, specifically comprises the following steps：
A. ship is obtained in different drafts by hydrokinetics calculation, the speed of a ship or plane, under the conditions of trim suffered by ship
The main engine power that resistance and needs consume, concretely comprises the following steps：Using the hydrokinetics calculation software of the industry, ship number is established
Computation model is learned, by adjusting different drafts, the speed of a ship or plane and trim, and then obtains the host work(that ship consumes under parameters
Rate, and form data statistic (such as table 1)；
B. the data statistic generated in step a is entered into server and establishes database, and in a manner of spline curve
Sequentially it is woven into three-dimensional mesh curved surface (as shown in Figure 1)；
C. before ship's navigation, by depositing for the database in step b and three-dimensional mesh surface chart typing ship control terminal
In reservoir, and pass through ship display and carry out showing specific form data or three-dimensional mesh curved surface；
D. before ship's navigation or in navigation, the speed of a ship or plane of ship plan is inputted by the input equipment in control terminal and is eaten
Water depth, control terminal go ashore the current speed of a ship or plane and draft according to the information in the parameter information reading database of input
The main engine power that oceangoing ship difference trim is consumed extracts, and passes through ship display and shown, so that driver refers to；
E. driver is according to the data on display, the trim value of selection power consumption minimum；
F. driver makes ship trim reach above-mentioned value by adjusting ballast water, fuel oil or cargo, and method of adjustment includes
Two kinds：
Method one：Driver controls related equipment to be adjusted, and judges adjustment end point by driver；
Method two：It is adjusted by control terminal instruction relevant device, and adjustment end point is judged by detection device；
Once g. ship speed or draft change, d~f is just repeated the above steps to select suitable trim
Value；
H. in real navigation, with the increase of the age of a ship, hull appearance is stained, due to machine ages etc., may
Appearing in actual power loss and predicted value under above-mentioned trim has deviation, database can be repaiied by the aeronautical data of accumulation
Just, so that database is updated as the age of a ship increases.
In above-mentioned steps a, ship can also be detected in different drinking water, the speed of a ship or plane, trim item by pond simulation test
Suffered resistance or the main engine power of consumption, concretely comprise the following steps under part：Simulation pond is established, ship model is put into simulation pond
It is interior, by adjusting different drafts, the speed of a ship or plane and trim, obtain the main engine power that ship consumes under parameters.
In above-mentioned steps d, driver can also voluntarily search the current speed of a ship or plane by three-dimensional mesh curved surface and drinking water is deep
Under degree, the trim value of power consumption minimum.
Table 1
The technology contents and technical characteristic of the present invention have revealed that as above, however those skilled in the art still may base
Make a variety of replacements and modification without departing substantially from spirit of the present invention, therefore, the scope of the present invention in teachings of the present invention and announcement
The revealed content of embodiment should be not limited to, and various replacements and modification without departing substantially from the present invention should be included, and is this patent Shen
Please claim covered.
Claims (6)
- A kind of 1. ship energy saving method based on trim optimization, it is characterised in that：Specifically comprise the following steps：A. ship is obtained in different drafts by hydrokinetics calculation or pond simulation test, the speed of a ship or plane, under the conditions of trim The main engine power that resistance and needs suffered by ship consume, and form data statistic；B. database will be established in the data statistic typing server generated in step a, and is sequentially compiled in a manner of spline curve It is made into three-dimensional mesh curved surface；C. before ship's navigation, by the database in step b and the memory of three-dimensional mesh surface chart typing ship control terminal It is interior, and pass through ship display and carry out showing specific form data or three-dimensional mesh curved surface；D. in ship's navigation, the speed of a ship or plane and draft of ship plan, control are inputted by the input equipment in control terminal Terminal is according to the information in the parameter information reading database of input, by ship difference trim institute under the current speed of a ship or plane and draft The main engine power of consumption extracts, and passes through ship display and shown, so that driver refers to；E. driver selects the trim of power consumption minimum, and adjusts ship and reach the trim according to the data on display；Once f. ship speed or draft change, d~e is just repeated the above steps to select suitable trim value and real It applies；G. it is real under above-mentioned trim since hull appearance is stained, due to machine ages with the increase of the age of a ship in real navigation Border power consumption and predicted value have deviation, and database is modified by the aeronautical data of accumulation, so that database increases with the age of a ship Add and update.
- 2. a kind of ship energy saving method based on trim optimization according to claim 1, it is characterised in that：The step a The data parameters that middle data statistic includes are the speed of a ship or plane, draft, trim value and ship power consumption.
- 3. a kind of ship energy saving method based on trim optimization according to claim 1, it is characterised in that：The step d In, driver can be also voluntarily searched by three-dimensional mesh curved surface under the current speed of a ship or plane and draft, the trim of power consumption minimum Value.
- 4. a kind of ship energy saving method based on trim optimization according to claim 1, it is characterised in that：The step e In, progress trim value adjusting can be loaded by adjusting ballast water in ballast tank of ship, fuel oil or by adjusting cargo in cargo hold.
- 5. a kind of ship energy saving method based on trim optimization according to claim 1, it is characterised in that：The step a In pond simulation test, concretely comprise the following steps：Simulation pond is established, ship model is put into simulation pond, by adjusting not Same draft, the speed of a ship or plane and trim obtain the main engine power that ship consumes under parameters.
- 6. a kind of ship energy saving method based on trim optimization according to claim 1, it is characterised in that：The step a In hydrokinetics calculation, concretely comprise the following steps：Using the hydrokinetics calculation software of the industry, ship mathematical computations are established Model by adjusting different drafts, the speed of a ship or plane and trim, obtains the main engine power that ship consumes under parameters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611029556.9A CN108068991A (en) | 2016-11-15 | 2016-11-15 | A kind of ship energy saving method based on trim optimization |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611029556.9A CN108068991A (en) | 2016-11-15 | 2016-11-15 | A kind of ship energy saving method based on trim optimization |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109552553A (en) * | 2018-11-06 | 2019-04-02 | 南通中远海运川崎船舶工程有限公司 | The environmentally protective container ship of 20000 casees grades and its intelligent management |
| CN110110351A (en) * | 2019-03-20 | 2019-08-09 | 浙江海洋大学 | A kind of method for numerical simulation of ship trim optimization |
| CN113968315A (en) * | 2021-12-14 | 2022-01-25 | 中国地质大学（武汉） | Container ship trim optimization method based on machine learning |
| CN115795663A (en) * | 2022-11-15 | 2023-03-14 | 中国地质大学（武汉） | Method for determining optimal trim navigation of ship under actual sea condition |
-
2016
- 2016-11-15 CN CN201611029556.9A patent/CN108068991A/en not_active Withdrawn
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109552553A (en) * | 2018-11-06 | 2019-04-02 | 南通中远海运川崎船舶工程有限公司 | The environmentally protective container ship of 20000 casees grades and its intelligent management |
| CN109552553B (en) * | 2018-11-06 | 2021-06-11 | 南通中远海运川崎船舶工程有限公司 | Twenty thousand container level green environment protection container ship and intelligent management method thereof |
| CN110110351A (en) * | 2019-03-20 | 2019-08-09 | 浙江海洋大学 | A kind of method for numerical simulation of ship trim optimization |
| CN113968315A (en) * | 2021-12-14 | 2022-01-25 | 中国地质大学（武汉） | Container ship trim optimization method based on machine learning |
| CN115795663A (en) * | 2022-11-15 | 2023-03-14 | 中国地质大学（武汉） | Method for determining optimal trim navigation of ship under actual sea condition |
| CN115795663B (en) * | 2022-11-15 | 2023-07-11 | 中国地质大学（武汉） | Method for determining optimal trim navigation of ship under actual sea conditions |
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Application publication date: 20180525 |
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