CN111489075A - Ship energy efficiency assessment method and device - Google Patents
Ship energy efficiency assessment method and device Download PDFInfo
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Abstract
The invention provides a ship energy efficiency evaluation method and device, relates to the technical field of ships, and aims to evaluate the energy efficiency of ships by acquiring oil consumption information, energy consumption information and navigation state information of the ships; calculating an oil consumption index, an emission index, an energy consumption distribution index and a navigation state index according to the oil consumption information, the energy consumption information and the navigation state information; and respectively evaluating the oil consumption index, the emission index, the energy consumption distribution index and the navigation state index. The invention can obtain the real-time condition of the ship energy efficiency according to each energy efficiency index, and by evaluating each index, scientific management plan and measure can be conveniently made, thereby being beneficial to improving the ship energy efficiency.
Description
Technical Field
The invention relates to the technical field of ships, in particular to a ship energy efficiency assessment method and device.
Background
Research on intelligent energy efficiency management of ships is an important ring for intelligent ship development. The intelligent energy efficiency management can realize automatic monitoring, analysis and autonomous decision of ship energy efficiency through online intelligent energy efficiency monitoring and optimal decision and control of ship navigation. The research and application of intelligent energy efficiency management have important significance for promoting the intelligent development of ships and improving market competitiveness.
The existing ship energy efficiency management system only monitors data related to a power system in a ship engine room, does not analyze the data, wastes a large amount of data, cannot obtain the real-time condition of the ship energy efficiency in time, cannot make scientific management plan and measures, and greatly influences the improvement of the ship energy efficiency.
Disclosure of Invention
The invention aims to provide a ship energy efficiency evaluation method and a ship energy efficiency evaluation device, which are used for solving the technical problems that the existing ship energy efficiency evaluation system cannot obtain the real-time condition of ship energy efficiency in time, cannot make scientific management plan and measures and greatly influences the improvement of the ship energy efficiency.
The ship energy efficiency evaluation method provided by the embodiment of the invention comprises the following steps:
acquiring oil consumption information, energy consumption information and navigation state information of a ship;
calculating an oil consumption index, an emission index, an energy consumption distribution index and a navigation state index according to the oil consumption information, the energy consumption information and the navigation state information;
and respectively evaluating the oil consumption index, the emission index, the energy consumption distribution index and the navigation state index.
Further, the fuel consumption indicator includes one or more of:
the method comprises the following steps of (1) calculating the oil consumption of a ship main engine, the oil consumption of a ship auxiliary engine, the oil consumption of a ship boiler, the oil consumption of the ship unit transportation work, the oil consumption of the ship unit transportation distance, the statistics of the fuel consumption of the voyage number, the real-time liquid level of an oil tank and the oil consumption rate of a main engine;
the emission indicators include one or more of:
EEOI, CO2 emissions per unit volume of transport, CO2 emissions per unit distance of transport;
the energy consumption distribution index comprises one or more of the following:
energy consumption distribution of a main propulsion system, power station energy consumption distribution and thermal station energy consumption distribution;
the navigational state indicators include one or more of:
the slip rate, the propeller light rotation margin, a main engine power and rotating speed curve, a navigation speed and shaft power curve, a loading state and a navigation working condition.
Further, the step of evaluating the fuel consumption index, the emission index, the energy consumption distribution index, and the voyage state index, respectively, includes:
evaluating the plurality of oil consumption indexes, the plurality of emission indexes, the plurality of energy consumption distribution indexes and the plurality of navigation state indexes according to an evaluation information table;
the evaluation information table comprises comparison information of each oil consumption index, each emission index, each energy consumption distribution index and each sailing state index with respective reference values.
Further, the method further comprises:
calculating a first percentage that the oil consumption of the ship main engine is higher than a main engine oil consumption reference value, a second percentage that the propeller light rotation margin is higher than a light rotation margin reference value and a third percentage that the slip rate is higher than a slip rate reference value;
obtaining a ship rotating speed evaluation result according to the first percentage, the second percentage and the third percentage; and the evaluation result of the rotating speed of the ship comprises reducing the rotating speed, increasing the rotating speed or keeping the current rotating speed to operate.
Further, the method further comprises:
respectively calculating the ring ratio increase rate of the average oil consumption, the ring ratio increase rate of the average propeller light rotation margin and the ring ratio increase rate of the average slip rate of the ship in a target period according to the ship main engine oil consumption, the propeller light rotation margin and the slip rate;
and determining whether to maintain the ship according to the ring ratio increase rate of the average oil consumption, the ring ratio increase rate of the average propeller light rotation margin and the ring ratio increase rate of the average slip loss rate.
Further, the method further comprises:
generating a DCS report form by using a plurality of oil consumption indexes;
generating an MRV report form by using a plurality of emission indexes;
and generating an energy efficiency index report form by using the plurality of oil consumption indexes, the plurality of emission indexes, the plurality of energy consumption distribution indexes and the plurality of navigation state indexes.
Further, the method further comprises:
acquiring an intersection point of a preset course of the ship and a boundary envelope curve of an ECA (environmental emission monitoring) discharge area;
calculating the time of the ship reaching the intersection point, and determining the time for adjusting the fuel type according to the time;
when the determined time for adjusting the fuel type is reached, adjusting the fuel type according to the fuel management data of the ship; wherein the fuel management data comprises fuel refueling records, fuel oil change records and tank liquid level records of the ship.
The embodiment of the invention provides a ship energy efficiency evaluation device, which comprises:
the acquisition module is used for acquiring oil consumption information, energy consumption information and navigation state information of the ship;
the index calculation module is used for calculating an oil consumption index, an emission index, an energy consumption distribution index and a navigation state index according to the oil consumption information, the energy consumption information and the navigation state information;
and the evaluation module is used for evaluating the oil consumption index, the emission index, the energy consumption distribution index and the navigation state index respectively.
An electronic device provided by an embodiment of the present invention includes a processor and a machine-readable storage medium, where the machine-readable storage medium stores machine-executable instructions executable by the processor, and the processor executes the machine-executable instructions to implement the ship energy efficiency assessment method as described above.
An embodiment of the present invention provides a machine-readable storage medium, which stores machine-executable instructions, and when the machine-executable instructions are called and executed by a processor, the machine-executable instructions cause the processor to implement the ship energy efficiency assessment method as described above.
The invention provides a ship energy efficiency evaluation method and device, relates to the technical field of ships, and aims to evaluate the energy efficiency of ships by acquiring oil consumption information, energy consumption information and navigation state information of the ships; calculating an oil consumption index, an emission index, an energy consumption distribution index and a navigation state index according to the oil consumption information, the energy consumption information and the navigation state information; and respectively evaluating the oil consumption index, the emission index, the energy consumption distribution index and the navigation state index. The invention can obtain the real-time condition of the ship energy efficiency according to each index, and by evaluating each index, scientific management plan and measure can be conveniently made, thereby being beneficial to improving the ship energy efficiency.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a flowchart of a ship energy efficiency evaluation method according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of an ECA boundary envelope and a route according to an embodiment of the present invention;
fig. 3 is a schematic diagram of a ship energy efficiency evaluation device provided in an embodiment of the present invention;
fig. 4 is a schematic diagram of an electronic device according to an embodiment of the present invention.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The existing ship energy efficiency evaluation system only monitors data related to a power system in a ship engine room, does not analyze the data, wastes a large amount of data, cannot obtain the real-time condition of the ship energy efficiency in time, cannot make scientific management plan and measures, and greatly influences the improvement of the ship energy efficiency. Based on this, the ship energy efficiency assessment method and the ship energy efficiency assessment device provided by the embodiment of the invention can obtain the real-time condition of the ship energy efficiency according to each energy efficiency index, and by assessing each index, a scientific management plan and measure can be conveniently made, thereby being beneficial to the improvement of the ship energy efficiency.
To facilitate understanding of the embodiment, first, a detailed description is given of a ship energy efficiency evaluation method disclosed in the embodiment of the present invention.
Fig. 1 shows a flowchart of a ship energy efficiency evaluation method provided by an embodiment of the invention.
Referring to fig. 1, a method for evaluating ship energy efficiency according to an embodiment of the present invention includes:
step S101, acquiring oil consumption information, energy consumption information and navigation state information of a ship;
step S102, calculating an oil consumption index, an emission index, an energy consumption distribution index and a navigation state index according to the oil consumption information, the energy consumption information and the navigation state information;
and step S103, respectively evaluating the oil consumption index, the emission index, the energy consumption distribution index and the navigation state index.
Specifically, the oil consumption information may include instantaneous oil consumption at an inlet/outlet of the main engine, instantaneous oil consumption at an inlet/outlet of the auxiliary engine, instantaneous oil consumption at an inlet/outlet of the boiler, a real-time value of a liquid level of the oil tank, a speed of flight to the ground, power/rotation speed of the main engine, and the like; the energy consumption information can comprise the exhaust temperature of a host, the inlet and outlet temperature of a turbocharger of the host, the inlet and outlet temperature of a cylinder sleeve of the host, the inlet and outlet temperature of a lubricating oil cooler of the host, the power of a generator and the like; the navigational state information may include wind, wave, flow, speed to water, shaft power, draught, and real-time latitude and longitude, among others. The information can be acquired by a ship real-time data acquisition system, and is specifically acquired from a ship real-time data database.
In this embodiment, the oil consumption index may be obtained by calculating the oil consumption information, and specifically may include one or more of the following: the method comprises the following steps of (1) calculating the oil consumption of a ship main engine, the oil consumption of a ship auxiliary engine, the oil consumption of a ship boiler, the oil consumption of the ship unit transportation work, the oil consumption of the ship unit transportation distance, the statistics of the fuel consumption of the voyage number, the real-time liquid level of an oil tank and the oil consumption rate of a main engine; the oil consumption of the ship main engine, the oil consumption of the ship auxiliary engine and the oil consumption of the ship boiler can be specifically hourly oil consumption, daily oil consumption and the like.
The emission index can also be obtained by calculating the oil consumption information, and specifically may include one or more of the following: EEOI (Energy Efficiency Operation Index, i.e. the amount of CO2 emitted in 1 ocean per 1 ton of cargo Operation), CO2 emissions per unit volume of transportation, CO2 emissions per unit distance of transportation.
The energy consumption distribution index may be obtained by calculating the oil consumption information and the energy consumption information, and specifically may include one or more of the following: energy consumption distribution of a main propulsion system, power station energy consumption distribution and thermal station energy consumption distribution; the energy consumption distribution of the main propulsion system can comprise energy consumption distribution of the propulsion system, energy consumption distribution of a cooling water system, energy consumption distribution of an exhaust system and the like, such as a main engine oil consumption rate, a main engine transmission propulsion power ratio, an exhaust power ratio, a cooling water ratio and the like, and can also comprise other energy consumption distributions; the power station energy consumption distribution can comprise power generator energy consumption distribution, cooling water system energy consumption distribution, exhaust system energy consumption distribution and the like, such as auxiliary engine oil consumption rate, auxiliary engine power ratio of generator, auxiliary engine exhaust power ratio, auxiliary engine cooling water ratio and the like, and can also comprise other energy consumption distributions; the thermal station energy consumption profile may include an exhaust gas boiler energy consumption profile, a hot oil boiler energy consumption profile, and the like.
The navigational state indicators may include one or more of: the slip rate, the propeller light rotation margin, a main engine power and rotating speed curve, a navigation speed and shaft power curve, a loading state and a navigation working condition. The loss rate is a ratio between the pitch of the ship propeller and the actual propelling distance, and is an efficiency parameter for marking the work of the ship main engine; the propeller light rotation margin refers to the percentage that the rotating speed of a propeller light load curve under specified power is greater than the rotating speed of a propeller standard load curve under the specified power; the loading state may include full load or ballast; and mooring, uniform speed or maneuvering under the sailing working condition.
In practical application, all the oil consumption indexes, all the emission indexes, all the energy consumption distribution indexes and all the navigation state indexes can be calculated.
In an alternative embodiment, the step S103 may be implemented as follows:
evaluating a plurality of oil consumption indexes, a plurality of emission indexes, a plurality of energy consumption distribution indexes and a plurality of navigation state indexes according to the evaluation information table; the evaluation information table comprises comparison information of each oil consumption index, each emission index, each energy consumption distribution index and each navigation state index and respective reference values.
For example, in the evaluation information table shown in table 1, each evaluation index corresponds to one evaluation module and one evaluation mode, it should be noted that X, Y values in the evaluation mode of each evaluation index do not represent the same value, but may be different values, and X, Y values of each evaluation index are determined according to a specific ship type.
TABLE 1
On the basis of the embodiment, the rotating speed of the ship can be evaluated according to the oil consumption of the ship main engine, the light rotation margin of the propeller and the slip rate, so that the ship speed can be optimized. The method can be realized by the following specific steps:
calculating a first percentage that the oil consumption of a ship main engine is higher than a main engine oil consumption reference value, a second percentage that a propeller light rotation margin is higher than a light rotation margin reference value and a third percentage that a slip rate is higher than a slip rate reference value; obtaining a ship rotating speed evaluation result according to the first percentage, the second percentage and the third percentage; and the evaluation result of the rotating speed of the ship comprises reducing the rotating speed, increasing the rotating speed or keeping the current rotating speed to operate.
Specifically, the ship rotation speed is evaluated according to the following evaluation formula:
and A is a × percentage of the oil consumption of the main engine higher than the reference value of the oil consumption of the main engine + b × percentage of the slip rate higher than the reference value of the slip rate + c × percentage of the light rotation margin of the propeller higher than the reference value of the light rotation margin.
The initial values of a, b and c can be 1, and the parameter size can be adjusted according to machine learning in the later period. The evaluation results can be found from table 2.
TABLE 2
| A≥1 | Reducing the rotational speed |
| A≤0 | Increasing the rotational speed |
| 0<A<1 | Maintaining the current rotation speed |
On the basis of the embodiment, the bottom pollution analysis can be performed on the ship according to the oil consumption of the ship main engine, the light rotation margin of the propeller and the slip rate, and whether the ship needs to be docked for maintenance or not is judged according to the analysis result. The method can be realized by the following specific steps:
respectively calculating the ring ratio increase rate of the average oil consumption, the ring ratio increase rate of the average propeller light rotation margin and the ring ratio increase rate of the average slip loss rate of the ship in a target period according to the oil consumption of a ship main engine, the propeller light rotation margin and the slip loss rate; and determining whether to maintain the ship according to the ring ratio increase rate of the average oil consumption, the ring ratio increase rate of the average propeller light rotation margin and the ring ratio increase rate of the average slip loss rate.
Specifically, the ring ratio growth rate of performance parameters such as the average oil consumption, the average propeller light-turning margin, the average slip rate and the like of the ship in a certain operation time range is evaluated, and a suggestion whether the ship needs to be docked for maintenance is obtained. The evaluation formula may specifically be:
b is the ring ratio increase rate of the oil consumption of d × main engine + the ring ratio increase rate of the slip rate of e × + the ring ratio increase rate of the light rotation margin of f ×.
The initial values of d, e and f can be 1/3, and the parameter size can be adjusted according to machine learning in the later period. And when the value of B is not less than a set value, recommending the ship to be docked for maintenance, wherein the set value can be set according to different ships.
In an optional embodiment, in order to facilitate statistics of the above indexes, a Data Acquisition System (DCS) report may be generated from a plurality of oil consumption indexes; generating an MRV (Monitoring, Reporting, verifying) report form by the plurality of emission indexes; and generating an energy efficiency index report form by using the plurality of oil consumption indexes, the plurality of emission indexes, the plurality of energy consumption distribution indexes and the plurality of navigation state indexes.
In addition, the voyage times of the ship can be recorded to generate a voyage time data table, and the starting and ending time and the cargo capacity of each voyage time are recorded specifically, so that the DCS report, the MRV report and the energy efficiency index report of each voyage time can be counted conveniently.
In practical application, when a ship enters the emission controlWhen zone (ECA), it is necessary to change the fuel type, thereby controlling CO2And (4) discharging. In the embodiment, in order to determine the time for replacing the fuel oil, the intersection point of the preset course of the ship and the boundary envelope curve of the ECA discharge area is obtained; calculating the time of the ship reaching the intersection point, and determining the time for adjusting the fuel type according to the time; when the determined time for adjusting the fuel type is reached, adjusting the fuel type according to the fuel management data of the ship; the fuel management data comprises fuel refueling records, fuel oil changing records and oil tank liquid level records of ships. In addition, when the distance between the ship and the ECA discharging area is smaller than the set distance, early warning can be carried out.
Specifically, the boundary envelope of the ECA may be obtained from an ECA boundary envelope data table set in advance, and the ECA discharge zone may also be obtained from an ECA discharge zone data table. As shown in fig. 2, according to the waypoint of the predetermined route and the boundary envelope of the ECA, the intersection point of the route and the envelope is obtained, the distance between the current position of the ship and the intersection point is calculated, and the distance is divided by the current speed, so that the time required by the ship to enter the ECA discharge area is obtained. The crew can adjust the fuel type in time based on the time required to enter the ECA discharge area.
According to the ship energy efficiency evaluation method provided by the embodiment of the invention, the oil consumption index, the emission index, the energy consumption distribution index and the navigation state index are calculated according to the oil consumption information, the energy consumption information and the navigation state information; and respectively evaluating the oil consumption index, the emission index, the energy consumption distribution index and the navigation state index. Therefore, the real-time condition of the ship energy efficiency can be obtained according to each index, and by evaluating each index, scientific management plans and measures are convenient to make, and the ship energy efficiency is improved.
Except that the ship is evaluated from a plurality of aspects such as oil consumption, emission, energy consumption distribution and navigation state, the embodiment also carries out comprehensive evaluation according to the oil consumption of a ship main engine, the light rotation margin of a propeller and the slip rate, gives a navigation speed optimization suggestion and a bottom of pollution monitoring condition, and in addition, provides a countermeasure aiming at an ECA (environmental protection and environmental protection) emission area, so that the ship energy consumption management is more reasonable, scientific and effective.
As shown in fig. 3, a ship energy efficiency evaluation device according to an embodiment of the present invention includes:
the acquiring module 31 is configured to acquire oil consumption information, energy consumption information, and navigation state information of a ship;
the index calculation module 32 is used for calculating an oil consumption index, an emission index, an energy consumption distribution index and a navigation state index according to the oil consumption information, the energy consumption information and the navigation state information;
and the evaluation module 33 is configured to evaluate the oil consumption index, the emission index, the energy consumption distribution index, and the navigation state index, respectively.
In alternative embodiments, the fuel consumption indicator comprises one or more of:
the method comprises the following steps of (1) calculating the oil consumption of a ship main engine, the oil consumption of a ship auxiliary engine, the oil consumption of a ship boiler, the oil consumption of the ship unit transportation work, the oil consumption of the ship unit transportation distance, the statistics of the fuel consumption of the voyage number, the real-time liquid level of an oil tank and the oil consumption rate of a main engine;
the emission indicators include one or more of:
EEOI, CO2 emissions per unit volume of transport, CO2 emissions per unit distance of transport;
the energy consumption distribution index includes one or more of the following:
energy consumption distribution of a main propulsion system, power station energy consumption distribution and thermal station energy consumption distribution;
the navigational state indicators include one or more of:
the slip rate, the propeller light rotation margin, a main engine power and rotating speed curve, a navigation speed and shaft power curve, a loading state and a navigation working condition.
In an alternative embodiment, the evaluation module 33 is further configured to:
evaluating a plurality of oil consumption indexes, a plurality of emission indexes, a plurality of energy consumption distribution indexes and a plurality of navigation state indexes according to the evaluation information table;
the evaluation information table comprises comparison information of each oil consumption index, each emission index, each energy consumption distribution index and each navigation state index and respective reference values.
In an alternative embodiment, the apparatus further comprises:
the first calculation module is used for calculating a first percentage that the oil consumption of a ship main engine is higher than a main engine oil consumption reference value, a second percentage that a propeller light rotation margin is higher than a light rotation margin reference value and a third percentage that a slip rate is higher than a slip rate reference value;
the rotating speed evaluation module is used for obtaining a ship rotating speed evaluation result according to the first percentage, the second percentage and the third percentage; and the evaluation result of the rotating speed of the ship comprises reducing the rotating speed, increasing the rotating speed or keeping the current rotating speed to operate.
In an alternative embodiment, the apparatus further comprises:
the second calculation module is used for calculating the ring ratio increase rate of the average oil consumption, the ring ratio increase rate of the average propeller light rotation margin and the ring ratio increase rate of the average slip loss rate of the ship in a target period according to the oil consumption of the ship main engine, the propeller light rotation margin and the slip loss rate;
and the maintenance suggestion module is used for determining whether to maintain the ship according to the ring ratio increase rate of the average oil consumption, the ring ratio increase rate of the average propeller light rotation margin and the ring ratio increase rate of the average slip loss rate.
In an alternative embodiment, the apparatus further comprises:
the DCS report generation module is used for generating a DCS report from the plurality of oil consumption indexes;
the MRV report generation module is used for generating an MRV report from the plurality of emission indexes;
and the energy efficiency index report generation module is used for generating an energy efficiency index report from the plurality of oil consumption indexes, the plurality of emission indexes, the plurality of energy consumption distribution indexes and the plurality of navigation state indexes.
In an alternative embodiment, the apparatus further comprises:
the intersection point acquisition module is used for acquiring an intersection point of a preset course of the ship and a boundary envelope curve of an ECA (emission center) emission area;
the time calculation module is used for calculating the time of the ship reaching the intersection point and determining the time for adjusting the fuel type according to the time;
the adjusting module is used for adjusting the fuel type according to the fuel management data of the ship when the determined time for adjusting the fuel type is reached; the fuel management data comprises fuel refueling records, fuel oil changing records and oil tank liquid level records of ships.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working process of the apparatus described above may refer to the corresponding process in the foregoing method embodiment, and is not described herein again.
The ship energy efficiency evaluation device provided by the embodiment of the invention has the same technical characteristics as the ship energy efficiency evaluation method provided by the embodiment, so that the same technical problems can be solved, and the same technical effects can be achieved.
Referring to fig. 4, an embodiment of the present invention further provides an electronic device 400, including: a processor 401, a memory 402, a bus 403 and a communication interface 404, wherein the processor 401, the communication interface 404 and the memory 402 are connected through the bus 403; the memory 402 is used to store programs; the processor 401 is configured to call a program stored in the memory 402 through the bus 403 to execute the ship energy efficiency evaluation method according to the above embodiment.
The Memory 402 may include a high-speed Random Access Memory (RAM) and may also include a non-volatile Memory (non-volatile Memory), such as at least one disk Memory. The communication connection between the network element of the system and at least one other network element is realized through at least one communication interface 404 (which may be wired or wireless), and the internet, a wide area network, a local network, a metropolitan area network, and the like can be used.
Bus 403 may be an ISA bus, PCI bus, EISA bus, or the like. The bus may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, only one double-headed arrow is shown in FIG. 4, but that does not indicate only one bus or one type of bus.
The memory 402 is used for storing a program, the processor 401 executes the program after receiving an execution instruction, and the method executed by the apparatus defined by the flow process disclosed in any of the foregoing embodiments of the present invention may be applied to the processor 401, or implemented by the processor 401.
The processor 401 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method may be performed by integrated logic circuits of hardware or instructions in the form of software in the processor 401. The Processor 401 may be a general-purpose Processor, and includes a Central Processing Unit (CPU), a Network Processor (NP), and the like; the device can also be a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other Programmable logic device, a discrete Gate or transistor logic device, or a discrete hardware component. The various methods, steps and logic blocks disclosed in the embodiments of the present invention may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present invention may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The storage medium is located in the memory 402, and the processor 401 reads the information in the memory 402 and completes the steps of the method in combination with the hardware.
The embodiment of the invention also provides a machine-readable storage medium, wherein the machine-readable storage medium stores machine executable instructions, and when the machine executable instructions are called and executed by a processor, the machine executable instructions cause the processor to realize the ship energy efficiency assessment method.
In the several embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. The above-described embodiments of the apparatus are merely illustrative, and for example, the division of the units is only one logical division, and there may be other divisions when actually implemented, and for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection of devices or units through some communication interfaces, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.
The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a non-volatile computer-readable storage medium executable by a processor. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A ship energy efficiency assessment method is characterized by comprising the following steps:
acquiring oil consumption information, energy consumption information and navigation state information of a ship;
calculating an oil consumption index, an emission index, an energy consumption distribution index and a navigation state index according to the oil consumption information, the energy consumption information and the navigation state information;
and respectively evaluating the oil consumption index, the emission index, the energy consumption distribution index and the navigation state index.
2. The method of claim 1, wherein the fuel consumption indicator comprises one or more of:
the method comprises the following steps of (1) calculating the oil consumption of a ship main engine, the oil consumption of a ship auxiliary engine, the oil consumption of a ship boiler, the oil consumption of the ship unit transportation work, the oil consumption of the ship unit transportation distance, the statistics of the fuel consumption of the voyage number, the real-time liquid level of an oil tank and the oil consumption rate of a main engine;
the emission indicators include one or more of:
EEOI, unit transportation CO2Emission, unit transport distance CO2Discharging;
the energy consumption distribution index comprises one or more of the following:
energy consumption distribution of a main propulsion system, power station energy consumption distribution and thermal station energy consumption distribution;
the navigational state indicators include one or more of:
the slip rate, the propeller light rotation margin, a main engine power and rotating speed curve, a navigation speed and shaft power curve, a loading state and a navigation working condition.
3. The method of claim 2, wherein the step of evaluating the fuel consumption indicator, the emission indicator, the energy consumption distribution indicator, and the voyage status indicator, respectively, comprises:
evaluating the plurality of oil consumption indexes, the plurality of emission indexes, the plurality of energy consumption distribution indexes and the plurality of navigation state indexes according to an evaluation information table;
the evaluation information table comprises comparison information of each oil consumption index, each emission index, each energy consumption distribution index and each sailing state index with respective reference values.
4. The method of claim 3, further comprising:
calculating a first percentage that the oil consumption of the ship main engine is higher than a main engine oil consumption reference value, a second percentage that the propeller light rotation margin is higher than a light rotation margin reference value and a third percentage that the slip rate is higher than a slip rate reference value;
obtaining a ship rotating speed evaluation result according to the first percentage, the second percentage and the third percentage; and the evaluation result of the rotating speed of the ship comprises reducing the rotating speed, increasing the rotating speed or keeping the current rotating speed to operate.
5. The method of claim 2, further comprising:
respectively calculating the ring ratio increase rate of the average oil consumption, the ring ratio increase rate of the average propeller light rotation margin and the ring ratio increase rate of the average slip rate of the ship in a target period according to the ship main engine oil consumption, the propeller light rotation margin and the slip rate;
and determining whether to maintain the ship according to the ring ratio increase rate of the average oil consumption, the ring ratio increase rate of the average propeller light rotation margin and the ring ratio increase rate of the average slip loss rate.
6. The method of claim 2, further comprising:
generating a DCS report form by using a plurality of oil consumption indexes;
generating an MRV report form by using a plurality of emission indexes;
and generating an energy efficiency index report form by using the plurality of oil consumption indexes, the plurality of emission indexes, the plurality of energy consumption distribution indexes and the plurality of navigation state indexes.
7. The method of claim 1, further comprising:
acquiring an intersection point of a preset course of the ship and a boundary envelope curve of an ECA (environmental emission monitoring) discharge area;
calculating the time of the ship reaching the intersection point, and determining the time for adjusting the fuel type according to the time;
when the determined time for adjusting the fuel type is reached, adjusting the fuel type according to the fuel management data of the ship; wherein the fuel management data comprises fuel refueling records, fuel oil change records and tank liquid level records of the ship.
8. A ship energy efficiency evaluation device, characterized by comprising:
the acquisition module is used for acquiring oil consumption information, energy consumption information and navigation state information of the ship;
the index calculation module is used for calculating an oil consumption index, an emission index, an energy consumption distribution index and a navigation state index according to the oil consumption information, the energy consumption information and the navigation state information;
and the evaluation module is used for evaluating the oil consumption index, the emission index, the energy consumption distribution index and the navigation state index respectively.
9. An electronic device comprising a processor and a machine-readable storage medium storing machine-executable instructions executable by the processor to perform the method of energy efficiency assessment of a vessel of any one of claims 1 to 7.
10. A machine-readable storage medium having stored thereon machine-executable instructions which, when invoked and executed by a processor, cause the processor to implement the method of energy efficiency assessment of a vessel of any of claims 1 to 7.
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