Page 60: of Maritime Reporter Magazine (October 2013)

60 Maritime Reporter & Engineering News ? OCTOBER 2013 As global environmental leg-islative mandates and rap-idly escalating fuel prices cumulatively conspire to drive ship owners to Þ nd and eliminate energy waste on commercial marine ves- sels, there has been a plethora of energy saving solutions from all sectors of the industry. But while ?solutions? are plen- tiful, concrete proof tying cause and en-ergy savings effect is more scarce. That is a factor which drove Bore, a Finnish ship owner with 18 vessels (RoRo and General cargo) and 110 years of experience to team with NAPA and ClassNK recently for an onboard trial of the new ClassNK-NAPA GREEN ship efÞ ciency software to help identify, in real time, speciÞ c areas where its ship was wasting energy. ?We wanted to be sure to identify ex- actly where the savings were coming from,? said Jörgen Mansnerus, VP, Ma- rine Management, Bore Ltd., in a recent interview, explaining the company?s rationale to participate in the test. ?We wanted hard data.?The ShipPerhaps the most interesting part of the ClassNK-NAPA GREEN ship ef Þ ciency software trial with Bore was the fact that the owner speciÞ cally chose its newest, most efÞ cient vessel for the trial. To pro- vide the most challenging environment, the software was installed aboard the 13,625 dwt highly efÞ cient RoRo vessel M/V Bore Sea, delivered in 2011 from Flensburger. ?We challenged NAPA last year to see if they could deliver further improve-ments on ships that are already new and efÞ cient,? said Mansnerus. M/V Bore Sea measures 195.4 x 26.2 m with a 7.4-m draft, powered by a single Wärtsilä 12V46F-CR 12,000 kW medium speed diesel engine, and classed by Lloyd?s Register. In addition the ship sports a pair of auxiliary diesel engines (1,270 kW); a pair of diesel driven gen-erators (1,500 kVA); a shaft generator (3,750 kVA); and an emergency genera- tor (410 kVA). M/V Bore Sea has a ser- vice speed 19 knots (at design draft of 7.05 m, 81% Load, shaft generator load 300 kW), a maximum cruising range of about 9,500 sea miles and a consump-tion of about 43 t/day. When the trial was completed and the smoke had cleared, the shipowner found that the operational software had led to a 5.8% reduction in fuel consumption, a big factor in it ex-tending the installation of the ClassNK-NAPA GREEN ship ef Þ ciency software aboard the 13,625 dwt highly RoRo vessel M/V Bore Song. ?Last year?s sea trial of operational software was a sig-niÞ cant factor in our decision to choose ClassNK-NAPA GREEN,? said Mans- nerus. ?We are con Þ dent that this soft- ware is a wise investment that will begin to offer fuel savings aboard this vessel from installation, and proud that we are able to offer this ef Þ ciency and lowered fuel spend to the charterers who will be reaping the beneÞ ts.? And while the sav- ings were impressive, the insight it pro-vided was even more so. ?With the Class NK / NAPA Green system you can ac- curately identify the areas where you are wasting energy, where before you had to guess,? said Mansnerus.Software SolutionsBore, NAPA & ClassNK Team for Study @ Sea to Cut Energy Consumption Saving energy on ß eet operations is a top line concern for every vessel owner, large and small. 110-year-old Finnish shipowner Bore teamed with NAPA and ClassNK to help identify energy waste on not only its ships operating today, but those planned for tomorrow. By Greg Trauthwein MV Bore Sea Type .......................................................Ro-Ro vessel Flag / Port of Registry .........Finnish / Helsingfors, FI Call sign ............................................................OJOU IMO-No ........................................................9443554 Built ............................................2011 Flensburg, DE ClassiÞ cation ....LR+100A1, ICE 1A FS, Nav1, IBS, .........................ICC+LMC, UMS LR GREEN PASS Length, o.a. ....................................................195.4 m Breadth molded .............................................26,20 m Draft, max. .......................................................7,40 m Gross tonnage (GT) .......................................25,586 t Net tonnage (NT).............................................7 675 t Deadweight (DWT) .......................................13 625 t Machinery .......................Wärtsilä 12V46F-CR, CSR ....................................................12,000kW, 600 rpm Fuel ....................................380 cSt at 50°C or MDO Water ballast tanks ..................................4,600 cu. m. Fresh water tanks .......................................130 cu. m. Heavy fuel oil tanks ................................1,200 cu. m. Diesel oil tanks ..........................................140 cu. m. Heeling tanks ..........................................1,460 cu. m. Service speed .....19 knots (at design draft of 7.05 m, ..................81% Load, shaft generator load 300 kW). Max. cruising range ...................abt. 9,500 sea miles Consumption ......................................about 43 t/day MR #10 (58-65).indd 60MR #10 (58-65).indd 6010/3/2013 2:49:44 PM10/3/2013 2:49:44 PM