Post on 30-May-2017
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1. INTRODUCTION From January 1 2013, IMO has adopted mandatory reduction measures for CO2 emission
for all ships. Apart from the emission reductions it also leads to a significant cost saving for
the shipping industry by energy efficiency. Energy efficiency improvements can give cost
savings of 5 – 15 % and bring down greenhouse gases. In the process a fuel savings is also
possible.
Under IMO MARPOL 73/78 Annex VI Reg. 22, all ships must have an International Energy
Efficiency Certificate (IEEC) and requires via IMO MEPC 62 (July 2011) a Ship Energy
Efficiency Management Plan (SEEMP) to be mandatorily implemented by 1st January 2013.
This establishes a mechanism to improve the energy efficiency of a ship in a cost-effective
manner. The SEEMP also provides an approach for shipping companies to manage ship
and fleet efficiency performance over time using the voluntary Energy Efficiency
Operational Indicator (EEOI) as a primary quantitative monitoring tool. The EEOI enables
operators to measure the fuel efficiency of a ship in operation and to gauge the effect of any
changes in operation, e.g. improved voyage planning or more frequent propeller cleaning,
or introduction of technical measures such as waste heat recovery etc.
IMO Circ. 684 section 6.1 recommends that monitoring should be carried out as far as
possible by shore staff in order to avoid unnecessary administrative burdens on ships' staff.
1.1 Brief Description of Viswa Energy Efficiency Management System (EEMS)
Viswalab, recognizing that shore staff is also heavily burdened, has developed this EEMS
Instrument which automatically, consistently and continuously, collects all relevant data
for electronic logging. It gives continuous on-line results saving a lot of time and effort.
While manual entry of data for purpose of calculating EEOI is permitted by IMO, it is
obvious that the numbers will always be suspected particularly by outside agencies. It is
envisaged that EEOI will be used for important considerations with regard to KPI, charter
rates, sale and purchase of ships, monitoring performance by ship staff, monitoring
performance of various energy efficiency technologies etc. It is therefore imperative that
the system of data collection and the computation are fully automated and function
independent of human interference.
There are systems available in the market costing a minimum of $50K and up to $150K. A
basic system which takes care of all important parameters contributing to EEOI should be
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adequate to meet both the IMO regulations and the other commercial and operational
requirements
Viswa Lab offers such a system at a sensible cost and with built in provisions to add
features for any additional future requirements. The two other important aspects are the
very brief installation time and the rugged tamper proof instrumentation system. The
system is also designed to be an effective management tool to monitor and improve the
vessel/fleet performance.
The following details are available from the system
1. EEOI trending with a vessel
2. EEOI trending within a fleet
3. Specific Fuel Oil Consumption trending
4. Slip (hull fouling, hull cleaning) trending
5. Trend of Distance Travelled-Fuel Consumed-Speed-Cargo Carried
6. Daily ROB charts So far the marine industry has been used to manual log books form of intermittent data
dependent on watch keeper entering the log books once every 4 hours. This requires a lot
of manual analysis work onboard with shortage of staff. It needs bulky log books being
transferred to the office and extra staff to re-enter data and analyze it on an accuracy of a
few percent basis.
With the Viswa EEMS instrument we introduce to the marine industry an electronic
assistance to gather all the data automatically in a continuous real time manner, without
burdening either the ship’s crew or the office staff and save on the manual dispatch of log
books and storage problems. It also saves on large amounts of data being transmitted
unprocessed to the office, focusing only on the end onboard calculated results.
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1.2 Viswa EEMS Saves time, effort, money and can help make shipboard decisions on
the spot
This data can be analyzed to more accurate decimal levels of a percent according to your
specifications. In addition, it is possible to evaluate these data across a fleet of ships quicker
and more accurately, without the element of human error at every stage of the old manual
process. Comparison with sea trials data with clean hull can be plotted automatically to
define current state of ship’s efficiency.
1.3 Types of EEOI Reports Available
Nine different types of report on EEOI and CO2 Emission can be generated and compared
across a fleet. The reports are:
• EEOI Voyage Basis Report for a Specific Voyage
• EEOI Port to Port Basis Report
• EEOI Rolling Average Report for all Voyage
• EEOI Plot of Individual Voyage against Voyage Number
• EEOI Rolling Average of 6 Voyages
• EEOI Rolling Average across a Fleet
• CO2 Emitted for All Voyage
• CO2 Emitted Tonnes/ Mile for Laden All Voyage
• CO2 Emitted Average Tonnes/Day All Voyage
1.4 Other parameters and trending captured are:
• SFOC (Specific Fuel Oil Consumption)
• ROB (Remaining Oil on Board)
• Vessel Tracking by Latitude & Longitude Position from GPS
• Weather condition
• Total fuel consumed for a specified period/voyage
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1.5 Additional Points
• The trend graphs can be customized as required
• Full range of automated report generation on EEOI
• Monitoring of SFOC of main engine
• Option to add additional sensors and functionality in future
• Data in .csv format can be easily adapted to any other type of data analysis software.
1.6 What is measured?
• Fuel Consumption from the flow meter
• Shaft RPM
• Shaft Torque & Power
• Ship’s speed
• Main engine SFOC
• GPS Position of vessel
• Fuel Quality
• Time and event related to a voyage – the system uses UTC time from GPS time stamp
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2. OUTLINE OF THE SOFTWARE
2.1 Automatic Data Logging System
The Automatic data logging system runs without any intervention from the user in the
background. It has a failsafe system to continue working in the event of a blackout using
back up battery.
2.2 User Input by Ship Staff to Capture Events Occuring
Events occurring related to a voyage which cannot be captured automatically or where a
specific sensor is not available and improvised by manual input i.e. START/END OF
VOYAGE, FULL AWAY, EOP, draft, cargo quantity, added bunker etc.
The sequence of this program is designed keeping in mind the flow of events that happens
from the start to end of a voyage.
START A NEW VOYAGE
ENTER VOYAGE NUMBER, START DATE & TIME
FULL AWAY DATE & TIME
END OF VOYAGE
EOP DATE & TIME
FULL AWAY DATE
ENTER BUNKER QTY/CARGO LOADED
NO
YES
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2.3 The User Interface at the Office for
Information
This is the software installed in the office. Once the ship staff enters phase 2 data the
program generates a daily file after mapping the information with the automatic data
acquisition system. Fuel cons
calculated and assigned for the day and leg of the voyage. This data file is sent to the office
through email attachment by the ship staff. If the ship is connected to the internet this
process can be made automated where after generating the data the program automatically
sends out the data to the office.
Data sent from the ship is downloaded from the email by the software and uploaded into
the database. The database contains data from all sh
the data and displays the information related to a particular ship at a specified time
interval for any of the features mentioned below.
Plots and traces start to end of a voyage by the ship and displays in the worldWorldwide fleet position is displayed dynamically
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The User Interface at the Office for Analyzing the Data and Retrieving Trend
This is the software installed in the office. Once the ship staff enters phase 2 data the
program generates a daily file after mapping the information with the automatic data
acquisition system. Fuel consumption, distance travelled, SFOC, speed,
calculated and assigned for the day and leg of the voyage. This data file is sent to the office
through email attachment by the ship staff. If the ship is connected to the internet this
s can be made automated where after generating the data the program automatically
sends out the data to the office.
Data sent from the ship is downloaded from the email by the software and uploaded into
the database. The database contains data from all ships in the fleet. The software
the data and displays the information related to a particular ship at a specified time
interval for any of the features mentioned below.
Plots and traces start to end of a voyage by the ship and displays in the worldWorldwide fleet position is displayed dynamically
Analyzing the Data and Retrieving Trend
This is the software installed in the office. Once the ship staff enters phase 2 data the
program generates a daily file after mapping the information with the automatic data
speed, ship position etc are
calculated and assigned for the day and leg of the voyage. This data file is sent to the office
through email attachment by the ship staff. If the ship is connected to the internet this
s can be made automated where after generating the data the program automatically
Data sent from the ship is downloaded from the email by the software and uploaded into
ips in the fleet. The software accesses
the data and displays the information related to a particular ship at a specified time
Plots and traces start to end of a voyage by the ship and displays in the world map
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2.4 Specific Fuel Oil Consumption (SFOC)
Daily SFOC monitoring and trending over time
any drop it alerts the engineer to take corrective action like, cleaning of filters, EGE etc
2.5 Slip (Hull fouling, Hull Cleaning)
Rolling average of slip takes out transient change and can predi
Long term trend would indicate progressive fouling of hull and can help staff to choose
right time to clean the Hull. A threshold value can be set to alert user.
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Specific Fuel Oil Consumption (SFOC)
Daily SFOC monitoring and trending over time–thermal efficiency of the
any drop it alerts the engineer to take corrective action like, cleaning of filters, EGE etc
Slip (Hull fouling, Hull Cleaning): Daily slip monitoring and trending over time.
Rolling average of slip takes out transient change and can predict long and short term trend
Long term trend would indicate progressive fouling of hull and can help staff to choose
right time to clean the Hull. A threshold value can be set to alert user.
thermal efficiency of the engine. If there is
any drop it alerts the engineer to take corrective action like, cleaning of filters, EGE etc
Daily slip monitoring and trending over time.
ct long and short term trend
Long term trend would indicate progressive fouling of hull and can help staff to choose
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2.6 Graph of Distance travelled
2.7 EEOI as a Management T
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Graph of Distance travelled – fuel consumed – speed – cargo carried
as a Management Tool
cargo carried
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2.8 Daily ROB
2.9 Report
Traceable report/charts/plots can be generated from the software automatically using
various filters available.
0
10
20
30
40
50
60
1317 1318
EEOI individual voyage Bar Chart
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Traceable report/charts/plots can be generated from the software automatically using
1318 1318 1319 1319 1320 1320 1321
EEOI individual voyage Bar Chart
Traceable report/charts/plots can be generated from the software automatically using
1321
EEOI individual voyage Bar Chart
EEOI
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2.10 Sample EEOI Report
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3. OUTLINE OF HARDWARE
Sensor signals from Bridge are converted and transferred to engine room server using the
local area network of the ship. Signals from sensors within the engine room are directly
connected to the data acquisition unit by screened signal cable. Data is logged every second
and saved every hour in the storage system. This helps to reduce the volume of data. This is
again further processed to generate daily data summary automatically and transmitted
ashore by email attachment. The file size of such attachment is less the 7kb and thus very
minimal transmission cost. Currently the equipment installation, servicing and training is
provided in the port of Singapore. Other ports can be considered on request.
3.1 Hardware System Overview
Viswa EEOI Ship Energy Efficiency Monitoring Hardware is made of stainless steel casing
and contains a real-time controller and backup battery in order to help the system to
operate 24/7 reliably basis even in the case that ship’s power supply is blacked out.
The User only needs to plug in the power cord and turn on the computer after installation,
when every input is already connected. The system will start automatic data logging once
the power supply is on.
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3.2 Power Supply Setup
The system runs with 240V main supply from ship system. In the event of blackout, it is
fitted with an UPS which has a capacity of 7.2AH.
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4. ADVANTAGES OF VISWA EEMS
• Very low electric power consumption – Simple and Reliable
• Real-Time data logging with GPS time stamp
• Simple Failsafe arrangement with UPS and Batteries
• More economical than any other EEMS in the market – best value for money
• Hardly any maintenance required – Additional limited warranty for the second year
• Existing problems of current EEMS on ships have been studied and the Viswa EEMS
has been designed to avoid all such problems
• Fully automated operation – very little user intervention required
• Special materials for corrosion protection and reliable operation
5. EQUIPMENT SIZE AND WEIGHT
• EEMS Stainless Steel Enclosure with Components : 5 Kg
• Power cable : 1 kg
• UPS: 7 kg
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6. POWER CONSUMPTION
The power consumption of the system is 250W. Power consumption of the data logging
system alone is around 0.5AH. In the event of blackout, the UPS supplies power only to the
data logging system which can run on UPS for approximately 15 hours.
7. WARRANTY (1 + 1 YEAR)
Viswa EEMS offers full warranty for the first year and a limited warranty for the second
year, which covers the components supplied by Viswa EEMS. Warranty on bought out
components is as per respective manufacturer’s warranties.
8. START UP, COMMISSIONING AND SERVICE
Viswa EEMS will provide operator training including safety instructions prior to start up
and commissioning. Viswa EEMS offers a full service package for continued monitoring and
service of EEMS.
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9. SCOPE OF SUPPLY
Scope of supply is given in the following table. Viswa EEMS will work with the customer to
get all aspects of the EEMS installation completed satisfactorily.
SCOPE OF SUPPLY VISWA EEMS SYSTEM
Items and Descriptions ViswaLAB Customer optional
1 Stainless Steel Enclosure Box �
2 UPS Power Supply �
3 7.2 AH Backup Battery �
4 Real-Time Controller �
5 Voltage measurement Module �
6 Current Measurement Module �
7 Internet Switch �
8 Intel NUC Computer �
9 15.6 LED Monitor �
10 Mouse and Keyboard �
11 Serial to Ethernet Converter �
12 Male Power Plug(16A-6h-220-250V ) �
Software Program
1 Phase 1 (Real-Time Data logging) �
2 Phase 2 (Ship Operator Data Processing) �
3 Phase 3 (Officer Ship monitoring) �
Documentation
1 User Guide Manual Instructions �
2 Hardware Installation Manual Instruction �
3 Software Installation Manual Instruction �
Commissioning
1 Hardware commissioning �
2 Software Commissioning �
3 Technical Consultant �
4 Technology Transfer �
5 1 Year warranty �
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10. PRICING OF EEMS SYSTEM
Item Description Unit Cost (USD)
EEMS INSTRUMENT
Manufacturing, Commissioning, Installation of Software & Hardware on-board, Testing and Training the Crew and office staffs based on service provided in Singapore. (The calculation procedure is as per MEPC.1/Circ.684 requirement).
30,000
The above price is based on the assumption that the ship is filled with and/or would
provide:
1. Flow meter (capable of digital output with suitable terminal)
2. Power meter (capable of digital output with suitable terminal)
3. GPS terminal with suitable output
4. Local Area Network (LAN) onboard the ship for transmitting signals from bridge to ECR.
For items 1 and 2, cabling are done from the sensor to the ECR. Cable specification can be
made available upon request.
If the ship is not fitted with LAN, it may be necessary to lay cable from bridge to ECR to
transmit GPS signal to the system.