Submitted by josh manning 1 on Wed, 11/09/2024 - 08:56 Duration: 00:00:01Tabs Results Blade Rotor Outputs PropertyValueVariable name RPM at the cut-in wind speed (TSR)32.7571 RPMn_cut_in RPM at the nominal wind speed (TSR)76.4331 RPMn_nom Nominal tip speed ratio4 tsr_nom Generator Rotor Outputs PropertyValueVariable name Rotor disk thickness10 mmhr Magnet width-to-pole pitch ratio0.600868 ai Inner-to-outer magnet radius0.907959 kd Magnets on a rotor disk60 magnet_num Distance between magnets17.5192 mmdist_magnet_Rin Magnet mass12420 gMagnetMass Magnet density7.5 g/cm3mag_density Volume of a single magnet13800 mm3Vmag Volume of all magnets1656000 mm3VolumeMagnet Remanent magnetic flux density1.45 TBr Magnetic coercivity1120020 A/mHc Maximum Energy Product422 KJ/m³BHmax Outer diameter1000 mmDout Average radius476.775 mmRavg Inner radius453.775 mmRin Outer radius500 mmRout Effective outer radius499.775 mmRout_eff Mass of rotor disks123.622 kgrBackIronMass Volume of rotor disks15708 cm3BackIronVolume Generator Stator Outputs PropertyValueVariable name Stator thickness13 mmtw Number of phases3 nphase Number of coils per phase15 q Total number of coils in stator45 coil_num Number of turns per coil60 Nc Copper wire diameter1.5 mmdc Number of wires at hand2 No_wires_at_hand Winding fill factor0.55 kf Copper wire cross-sectional area3.53429 mm2sc Copper wire diameter (Calculated)2.12132 mmdc_theor Coil leg width25 mmwc Average length of coil turn230.5 mmlavg Stator nominal temperature57.7 C°tc_real Stator surface area5186.25 cm²stator_surface_area Heat coefficient0.697743 cq_real Current density8.48826 AJmax_real Resistivity of copper at nominal temperature1.92472E-8 Ohm.mpt Resistance of a single coil0.0753159 OhmRc Phase resistance1.12974 OhmRphase Phase inductance0.00410733 HLs Nagaoka constant0.186109 Kn Volume of a single coil74912.5 mm3coil_volume Weight of a single coil451.547 gcoil_weight_constr Coil hole at Rin30 mmcoil_hole_Rin_constr Coil hole at Rout30 mmcoil_hole_Rout_constr Coil mass for construction20.7711 kgrmcu_constr EMF at the cut-in wind speed (Calculated)85.5334 VEMF_cut_in EMF at the nominal wind speed (Calculated)199.578 VEMF_nom Current at the nominal wind speed30 AIac_nom Nominal frequency38.2166 Hzfnom Generator Bearing Hub Outputs PropertyValueVariable name Number of bolts on hub6 No_bolts_hub Mass of bearing hub14290.7 gBearingHubMass Costs, Mass and Volume PropertyValueVariable name Total generator cost2223.32 EURTotalcost Total generator mass161.983 kgrTotalMass Total generator volume46.3385 dm3TotalVolume Blade rotor mass81.9581 kgrblade_rotor_mass Softwood density500 kgr/m³softwood_density Cost of magnets1426.62 EURMagcost Magnet shipping cost100 EURshippingcost Copper mass19.6641 kgrmcu Cost of copper290.242 EURcoppercost Resin mass6.27729 kgrresinmass Cost of resin86.7076 EURresincost Resin volume4615.66 cm3ResinVolume Total mass of one generator rotor68.0208 kgrTotalMassRotor Cost of iron152.055 EURironcost Surface area of moulds1.69 m2woodS Total cost of moulds267.696 EURwoodcost Output files Octave/Matlab variable file: simulation-9439.mat Input parameters Blade Rotor Inputs Turbine radius: 3.50mCut-in wind speed: 3.00m/sNominal wind speed: 7.00m/sCut-in TSR: 4.00Nominal TSR: 4.00Air density: 1.204kg/m³ Generator Rotor Inputs AFPM rotor topology: Double RotorOuter diameter: 1000.00mmMagnetic material: NdFeB N52Number of generator poles: 60Magnet length: 46mmMagnet width: 30mmMagnet thickness: 10mmRotor disk thickness: 10mmMechanical clearance: 3.00mm Generator Stator Inputs Select coil type: RectangularWinding fill factor: 0.55Current at nominal wind speed: 30.00AStator thickness: 13mmNumber of turns per coil: 60Copper wire diameter: 1.50mmNumber of wires at hand: 2Coil leg width: 25mmStator nominal temperature: 57.70C° System Inputs System voltage: 200.00VTransmission cable losses: 10.00%Rectifier losses: 10.00% Financial Copper price: 12.00€/kgIron price: 1.00€/kgResin price: 11.23€/kgPlywood price: 17.60 €/m² Simulation Inputs Simulation Radius: Average radiusSimulation step: 2Current step: 1RPM Step: 1Mesh size: Automesh Constants Copper resistivity: 1.678E-8 Ω·mCopper density: 8.94g/cm³Iron density: 7.87g/cm³Resin density: 1.36g/cm³