Research Activities 20111215(SEAFDEC) Kimura

The intellectual cluster initiation business(The Global base upbringing type)2009-2013Green Invention of UMI( Universal Marine Industry)Hakodate MarineScience parkFor Sustained yieldWindgeneratorWater storagetankWind pump systemControl roomUndergroundwater tankFarming pondsSolar panelFlow ofelectric powerResearch subject 2:The independent type bio farming of the northern type mega2011/12/15benthos containing advanced function materialSubmerged pump33

The optimal design of the rotorStreamline around the rotorPressure distribution around the rotorDistribution of wind velocity2011/12/1599

Water lifting system using natural energyBach type Savonius rotorSix blades wind rotor2011/12/15Piston pumpDiaphram pump1010

Pressure distribution on the rotorFlow direction(=0°)=0°=20°=0°(Ct =0.56)=20°(Ct =1.48)2011/12/1512

Streamline around the rotorFlow direction(=0°)2011/12/15=0°(Ct =0.56)=20°(Ct =1.48)13

Torque coefficient Ct2.01.51.00.50.0-0.5Relationship of Maximumtorque coefficient C t and fMaximum torque coefficient C t =1.48( =20°, =0° )Savonius type(Yamashita, 2010)0 30 60 90Angle of flow direction θ=0°θ=5°θ=10°θ=20°θ=30°Savonius type(Yamashita, 2010)・The torque coefficient is improved from the past result.・It was considered that should be set between 0and 2011/12/15 10° in the motive performance.14

Water lifting system using natural energy 2010Improved bach typeSavonius rotorWind rotorTank for temperatureregulationExperimental tankFlow of electricityPiston pumpFilter tankSolarbatterySea waterCirculation assist pumpBatterysturgeonThermalconverterHeat pumpConcrete baseConcrete baseSuction pipeWallGround waterSea2011/12/151515

Overview of heattransfer pipesAnti-icing system utilized newly designedheat transfer pipeFarming tankSea waterStructure andprinciplewickWind rotorDiaphrampumpHeatreceivingHeat inradiationHeat outFlow of vaporCondensed fluidOperating fluidMega-bentosConcrete baseWallSuction pipe2m under groundEarth thermal2011/12/15Newly designed heat transfer pipeSea water16

Anti-icing system utilized newlydesigned heat transfer pipe2011/12/1517

Farming tank used bythe ground waterTo prevent change ofwater temperatureFarming tankPvacuum insulatingstructured pipePradiatorGroundvacuum insulating structure10-12°Cgroundwater 地 下 水tankDrain ditch2011/12/1518

Structure of the heat pump2011/12/15 1919

13.3℃Farming tank adjusted watertemperature by use ofthe ground waterPipe with vacuuminsulting structureFarming tank12.2℃groundwatertankradiator13.5℃2011/12/15

Optimization of design for seaweed bed(Kjellmaniella crassifolia Miyabe) by use ofCAE(Computer Aided Engineering) TechniquesPlanning of seaweed bedFeed backEmpiricalknowledge andtechniquesInitial designDetail designOptimization designby simulation inconsideration ofvarious conditions:current, geography,configuration ofseaweed bed, etc.Streamline of seawateraround seaweed bedSeaweedbedSea bed (sand)Construction of seaweed bedSea levelVerification testTidal current(2knot)Sea bed (sand)2011/12/15Verification test in offshore of EsanVector of current velocity around seaweed bed21

Saccharina japonicaDulse2011/12/15Bio Farming Gagome22Costaria costata

Current distribution by CDF aroundthe artificial reef “marine spider”2011/12/1523

3. Ecosystem based fishery managementComprehensive fishery management has become importantbased not only on target species but also on overall marineecosystem.SurfacelayerMesopelagiclayerBottom layerWe should clarify the correlation of ecosystem and relationshipof habitat to properly manage the marine resources.2011/12/15 24

Mesopelagic layer enormous amounts of marine lifetens of times marine life compared withthose in surface layer0mSurfacelayerMesopelagic layer250mnightMesopelagiclayerdaytimenighttime●Many zooplanktons and fish behave dial vertical migration, and influencethe ecosystem in the surface layer.●Especially vertical migration of micronecton is big scale.2011/12/15 25

Distinction of marine life in the mesopelagic layerand night and day monitoring2km300m300mFish school/simple =number500m500mDistinction of fish species by reflection strength and frequency propertiesin the mesopelagic layerDiaphus thetaEuphausia pacifica2011/12/15 26

Measurement by the echo sounder時 間pulse switchパルススイッチdepth深度timeディスプレイDisplaySend supersonic wave into the underwaterDepth (m)oscillator 発 振 器transducer 送 受 波 器Acoustic音 wave 波reflection 反 射reflection 反 射Echogrambottom海 底fish魚 群0Sargassum4amp増 幅 器bedsMeasured reflection strength reflected froman objectEstimates the existence of the object,depth or the densityDistance for the objective dBottomdt ct:time between send to receivedc:sonic speed22011/12/15 278

Construction of sea grass bed and monitoringDevelopment of measuringmethodSea surface levelsatelliteDistinction of the seaweed classby the frequency analysisEstimate of the quantity ofseaweedtransducersurfaceSea grass bedbottomMapping by the space information technologyConstruction and management of fishing groundEvaluation of ecosystem, maintenance2011/12/15 28

Construction of sea grass bed andmonitoring天 然 のガラモ 場 が 隣 接 する 砂 地 を 選 定0.6ha天 然 のガラモ 場貧 植 生 域2011/12/15 29

Thank you for your attentionWind pumping rotor in Hakodate2011/12/15 30