VEEMS Viswa Energy Efficiency Management System
VEEMS ARCHITECTURE
VEEMS – DATA AGGREGATION Air Temperature Air Humidity Draft & Trim (Dynamic) Sea Water Temperature Delivered Power Rudder Angle & Heading Speed through water Frequency Current Speed over ground Depth Below Keel
Operational & Energy Saving Factors ▪ Trim optimisation ▪ Hull & Propeller cleaning ▪ Route / Voyage optimisation ▪ Total Fuel Management - Benefit measurement ▪ Quantification of savings – when any new technology like Mewis duct, new paints, etc.
Environmental and Regulatory Factors ▪ SEEMP and EEOI ▪ MRV EU (EU – Measuring, Reporting, Verification) ▪ Fuel change over ECA compliance record ▪ ESI index (Reward from port to ship in reducing SOx, NOx) ▪ EVDI – Existing Vessel Design Index – Rightship/Shipping Efficiency
Performance Monitoring Factors ▪ Performance monitoring and benchmarking ▪ Engine Performance, SFOC (Specific Fuel Oil Consumption) ▪ Auxiliary Engine – Power management, Performance & Optimization ▪ Cylinder oil – feed rate, optimization etc ▪ KWh/Nm, Kg/Nm – Other KPIs
+ + Performance & Operational Factors Environmental Factors Engine Optimization Fully automated system for Crew & office + VEEMS
Pre-installation Survey Configure VEEMS as per Ship Specifics Installation Communication Check Data Hosting & Monitoring VEEMS Office – Technical Person Embedding Customer Support 24 x 7 – both Ship & Shore
Hardware and Cabling Ship – “Plug & Play”
DASHBOARDS & KPI REPRESENTATION
VEEMS – Dashboard
Major KPIs
Major KPIs
EEOI – EFFICIENCY SUMMARY
Fuel Consumption Break-up
VEEMS – On board – Automated Reporting
M/E Load Diagram
Operational KPIs
Efficiency Summary Report
Voyage Analysis
Operational Profile Summary
Emission Summary
Multiple Parameters/KPIs Comparison
Fuel Consumption Summary
Voyage - shows plotted route and actual route Singapore Plotted Route Durban
Ship Position data - every 6 minutes.
Sea Current effect on ship movement Red Color – Current against the ship Blue color - Favorable current Singapore Durban
Sea Current - favorable/against + sea current is in favor of ship’s direction - sea current is in opposite direction as the ship
Hull & Propeller Condition
Hull Condition Normal Hull Condition Added Resistance more than 30% % Increase in Added Resistance more than 50% resistance 60% 50% 40% 30% 20% 10% 23 34 24 26 27 28 33 25 29 30 31 32 35 36 Months since dry-docking Note: Hull cleaning cost should be compared to increase in fuel consumption due to increased resistance to arrive at the trigger point for hull cleaning.
Hull Cleaning & Painting Fuel Savings % 4% % Increase in Resistance 60 55 Delayed Hull & Propeller 51 Cleaning 50 Dry dock with painting - (Resistance drop 13%) (Resistance drop 25%) 46 41 40 38 35 34 32 30 30 30 % Added Resistance Tropical waters excess hull growth 25 20 10 0
Before & After Hull Cleaning – Vessel In Tropical Waters Fuel Savings % 4% 50 44 14 14 Vessel in Tropical Waters - Maximum Hull growth & loss of power Vessel in tropical waters and assuming that the marine growth & fouling would be maximum, hull cleaning resulted in a fuel saving of 6MT/day at 14 knots, 63% MCR on a fully loaded ship at similar weather conditions.
Before & After Hull Cleaning – Vessel in Cold Waters Fuel Savings % 4% 50 49 14 14 Vessel in Cold Waters - Minimal hull growth & loss of power Vessel in cold waters and assuming that the marine growth & hull fouling would be minimal, hull cleaning resulted in a fuel saving of 1MT/day at 14 knots, 70% MCR on a fully loaded ship at similar weather conditions.
Computation of Savings Averaging the fuel savings in cold and tropical waters, about 3.5 MT/day [(6+1)/2] of fuel is saved – this is for a 50 MT/day vessel . With 280 sailing days a year = 3.5 MT x 280 days = 980 MT/year . Assuming fuel cost is US $250/MT, Annual fuel savings = US $ 245,000 Normalizing this data to make it uniform with a standard vessel consuming 75 MT/day (used for all other computations), savings will be US $367,500
Hull & Propeller - Performance
Trim Optimization
Trim Optimization - VEEMS
Trim Optimization True Wind Dynamic Trim* Ship Speed Shaft Power Mean Draft Trim Test # Time Date Speed (m) (knots) (kW) (m) (knots) 10:30:00 1 15-Sep-16 - 2.00 F 17 19000 14 2.3 AM 11:30:00 2 15-Sep-16 - 1.50 F 17.3 19002 14 3.1 AM 12:30:00 3 15-Sep-16 - 1.00 F 17.8 19010 14 2.5 PM 13:30:00 4 15-Sep-16 - 0.50 F 18.1 19003 14 2.9 PM 14:30:00 5 15-Sep-16 0 18 19001 14 2.4 PM 15:30:00 6 15-Sep-16 0.5 A 17.9 19006 14 3 PM 16:30:00 7 15-Sep-16 1.0 A 17.55 19010 14 2.4 PM 17:30:00 8 15-Sep-16 1.5 A 17.32 19004 14 2.6 PM 18:30:00 9 15-Sep-16 2.0 A 17 19005 14 2.9 PM * Measured using accelerometer based Trim Instrument which also corrects for ship's movement in multiple directions.
Trim Optimization Speed Vs Trim 20,00 18.1 Knots 17.3 Knots 17.8 Knots 18 Knots 17.9 Knots 17.55 Knots 17.32 Knots 17 Knots 17 Knots 15,00 Optimized Trim for best speed 10,00 5,00 Dynamic Trim* (m) Ship Speed (knots) 0 -0.50 F 0.5 A -1.00 F 1 A -1.50 F 0,00 1.5 A -2.00 F 2 A -5,00 -10,00 15-Sep-16 15-Sep-16 15-Sep-16 15-Sep-16 15-Sep-16 15-Sep-16 15-Sep-16 15-Sep-16 15-Sep-16 10:30:00 AM 11:30:00 AM 12:30:00 PM 13:30:00 PM 14:30:00 PM 15:30:00 PM 16:30:00 PM 17:30:00 PM 18:30:00 PM
Computation of Savings for Trim Optimization Fuel Setting voyage of 280 Ship Speed Fuel Cost unchanged days Original Trim 0.5m by aft 17.9 knots 97.5 MT/day 27300 MT US $ 6825000 95 MT/day 18.1 knots at Trim after 0.5 m by same fuel 26600 MT US $ 6,650,000 Optimization forward Equivalent Fuel setting consumption over same distance US $175,000 Fuel Savings 2.50%
TRIM OPTIMIZATION
TRIM OPTIMIZATION
Total Savings S No Description Fuel Savings Total Savings 1 Trim Optimization 2.5% US $175,000 2 Voyage JIT 12.16% US $ 851,200 3 Hull Condition 4% US $ 367,500 4 Total Fuel Management 2% US $ 150,000 TOTAL 20.66% US $ 1,543,700 Values based on a fuel consumption of 75 MT/day at 17 knots 280 days at sea, Total annual savings - US $1,543,700
EU MRV
VEEMS SYSTEM – APPROVED BY
Automated EU MRV Report
EU MRV Report – Fuel & Emission Breakup
Emissions – Rolling Total – Easy to report EU & IMO
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