European fisheries fund (EFF) Danish Fishermen's Association Energy Reductions in Fishing Vessels Ministry of Food, Agriculture and Fisheries
Energy efficiency audit project Project start in June 2009, expected ending December 2011 Review of vessels technical installation Propeller, propeller nozzle, gears, hydraulics, auxiliary engines, heating, electrical consumers, refrigeration units, antifouling, hull Main engine, air filters, turbo-charged engines, etc. Mapping of energy consumption diesel, electricity, heating Review with owner/crew Audit report is sent to owner Turn your thoughts into action.
Preliminary statistics: Data from the preformed energy audits (2010.12.31) 2009 Number of vessels Total fuel consumption in liter (Marine diesel 0,1 % sulphur) Average in savings (if performed) Total fuel saving in liter. Total gross Tons Accumulated engine power (kw) 112 39,752,220 *13.4 % *5,326,795 22,895 53,298 2010 Number of vessels Total fuel consumption in liter (Marine diesel 0,1 % sulphur) Average in savings (if performed) Total fuel saving in liter Total gross Tons Accumulated engine power (kw) 49 21,578,000 *13.9 % *2,999,342 10,603 30,258 *calculated savings A possible CO2 reduction at 22,480 tons (Car =3 tons/year )
Purse Seiner E727 Jette Kristine Esbjerg Improvement at 23,5 % Bollard pull in Frederikshavn E727 Jette Kristine Technical data: Engine: MAN 1080 kw at 825 rpm Propeller: MAN Alpha VB740 / ø2650 / 214 rpm 19.1 tons bollard pull before 23.6 tons bollard pull after Latest information from the vessel indicates a fuel saving at minimum 15 %. Jette Kristine consumes approx. 600,000 liter MGO per year - total savings at approx. 90,000 liter MGO at approx. 5,- DKK per liter = 450,000 DKK / year (60,466 Euro)
Hydraulics: (approx. 11% of total fuel consumption) Hydraulic is used for most power transmissions trawl winches net drums cranes anchors winches rudder hydraulics? Where to save: - Frequency regulating of hydraulic pumps - on/off switch near operation areas Refrigeration: (approx. 7% of total fuel consumption) RSW Refrigerated Sea Water Refrigerated cargo holds freezing holds Ice plants Where to save: - Energy saving compressor - Frequency control on pumps - Automatic regulating systems on RSW valves - Insulation of cargo holds
Thermo photographic: Deck support with uninsulated heating pipes The heating pipes were running from the engine room to a heating ventilator in the forecastle, inside the aluminum deck support. This reduces the effect of the ventilator and heats up the cargo holds. It was recommended to insulate the pipes.
Heating: (2% of total fuel consumption) Generators Oil heating Engine cooling water Main engine Heating Electric heating When using the waste heat from the engines the ships efficiency is improved The price from an oil boiler is approx. ¼ per produced Kwh compared to electric heating (DKK prices) Electric heating approx. 0.28 /Kwh - Oil heating 0.08 /Kwh The ventilator uses 6 Kw/h = 144 Kw per day The vessels generator was a Scania DS11 which uses 0.22 l/kw in average. 144 x 0.22 = 31.68 liter MGO per day. With an oil price of approx. 0.67 /liter it amounts to 21.23. per day per ventilator. Per year this is 31.68 x 365 = 11,563 liter oil per ventilator (7,747 )
Electricity and lighting: (approx. 3% of total fuel consumption) Production of electricity: Better with smaller gensets Harbour/emergency gensets New gensets, improved efficiency Benefits with smaller engines: Service Spare parts Lubrication oil Fuel consumption Replacement
Other consumers: (approx. 2% of total fuel consumption) Ventilation Airconditioning Engine heating Refrigerators and freezers Electronics (navigation equipment, radios and televisions)
Main engine Diesel engine before installation Engine room Fact: Approx. 40% of the fuel are is for propulsion, the rest disappears into different losses (flue gasses, cooling water, mechanical loss) Improvement: Use of waste heat from cooling water system, new electronic controlled engines more efficient - savings approx. 10 20 % Easy way to save fuel: Slow down!!
New emission levels in 2015 (SECA area) Reduction of SO₂ (sulphur) in marine fuels from 1 % till 0.1 % (global 3.5 % 2020: 0.5%) In 2016 reduction of NOx from new ships to 80% of present level. What happens? - Increased demand on low sulphur distillates (marine fuel, 0.1 % and 0,05 %) - Production of low sulphur marine fuels will not be increased according to fuel suppliers. - Supply and demand? - Higher prices at marine fuels.
Bulbous bow Reduces/changes the waves in front of the ship, most efficient at a certain depth and speed, a negative influence at the wave pattern can occur if not correct design, savings up till 30 %.
Fishing vessels of the future? Ulstein Groups X-bow Rolls-Royce UT 790 CD
Or?
But not like this!!
Alternative propellants: Gas: CNG Biogas LNG (dual-fuel) Biofuels : Canola oil fish oils algae? Diesel electrics: Offshore vessels, multipurpose vessels Fuel cells: Gensets (still in development) SkySails: Supplier claim 10 to 35 % savings on fishing vessels? ( 160 m² kite = 8 tons of pull)?
Thank you for your attention! Any questions? ojk@dti.dk Phone: +45 7220 2465