Submitted by fromwastetowind on Thu, 27/02/2025 - 14:32 Duration: 00:00:01Tabs Results Blade Rotor Outputs PropertyValueVariable name RPM at the cut-in wind speed (TSR)159.236 RPMn_cut_in RPM at the nominal wind speed (TSR)270.416 RPMn_nom Nominal tip speed ratio2.83035 tsr_nom Generator Rotor Outputs PropertyValueVariable name Rotor disk thickness10 mmhr Magnet width-to-pole pitch ratio0.845356 ai Inner-to-outer magnet radius0.688579 kd Flux density in airgap0.157 TBmax Flux density on magnet surface0.237 TBmg First harmonic of flux density in airgap0.1 TBp Flux per pole (Calculated)0.000711 WbFlux_pole Magnets on a rotor disk12 magnet_num Distance between magnets-2.114 mmdist_magnet_Rin Magnet mass7200 gMagnetMass Magnet density5 g/cm3mag_density Volume of a single magnet60000 mm3Vmag Volume of all magnets1440000 mm3VolumeMagnet Remanent magnetic flux density0.39 TBr Magnetic coercivity227950 A/mHc Maximum Energy Product30 KJ/m³BHmax Outer diameter326.666 mmDout Average radius135.554 mmRavg Inner radius110.554 mmRin Outer radius163.333 mmRout Effective outer radius160.554 mmRout_eff Mass of rotor disks13.1917 kgrBackIronMass Volume of rotor disks1676.21 cm3BackIronVolume Generator Stator Outputs PropertyValueVariable name Stator thickness18 mmtw Number of phases3 nphase Number of coils per phase3 q Total number of coils in stator9 coil_num Number of turns per coil203 Nc Copper wire diameter0.85 mmdc Number of wires at hand1 No_wires_at_hand Winding fill factor0.75 kf Copper wire cross-sectional area0.57 mm2sc Copper wire cross-sectional area (Calculated)0.527264 mm²sc_theor Copper wire cross-sectional area of a sinlge wire0.57 mm²sc_multi_wires Copper wire diameter (Calculated)0.819557 mmdc_theor Coil leg width8.57111 mmwc Average length of coil turn246.913 mmlavg Stator nominal temperature83.7674 C°tc_real Stator surface area380.938 cm²stator_surface_area Heat coefficient0.302043 cq_real Current density4.62512 AJmax_real Resistivity of copper at nominal temperature2.09179E-8 Ohm.mpt Resistance of a single coil1.83943 OhmRc Phase resistance5.5183 OhmRphase Phase inductance0.0121912 HLs Nagaoka constant0.29115 Kn Winding coefficient0.95 kw Volume of a single coil38093.8 mm3coil_volume Weight of a single coil257.935 gcoil_weight_constr Coil hole at Ravg60 mmcoil_hole_Ravg Coil hole at Rin60 mmcoil_hole_Rin_constr Coil hole at Rout60 mmcoil_hole_Rout_constr Coil mass for construction2.57935 kgrmcu_constr EMF at the cut-in wind speed (Calculated)29.0813 VEMF_cut_in EMF at the nominal wind speed (Calculated)49.3955 VEMF_nom Current at the nominal wind speed2.63632 AIac_nom Terminal voltage at the nominal wind speed39.5164 VV_term_line Nominal frequency27.0416 Hzfnom Generator power (Calculated)312.534 WPnom Copper losses (Calculated)115.06 WPcopper Eddy current losses (Calculated)0.0558381 WPeddy Generator efficiency (Calculated)0.707992 efficiency_real AC Power at the rectifier (Calculated)281.28 WPnom_rect DC Power at the batteries (Calculated)253.152 WPnom_dc Generator Bearing Hub Outputs PropertyValueVariable name Number of bolts on hub4 No_bolts_hub Mass of bearing hub3708.65 gBearingHubMass Rotational losses (Calculated)13.7879 WProt Costs, Mass and Volume PropertyValueVariable name Total generator cost256.96 EURTotalcost Total generator mass25.1079 kgrTotalMass Total generator volume7.04006 dm3TotalVolume Blade rotor mass1.39353 kgrblade_rotor_mass Softwood density500 kgr/m³softwood_density Cost of magnets111.209 EURMagcost Magnet shipping cost86.9565 EURshippingcost Copper mass2.29877 kgrmcu Cost of copper33.9298 EURcoppercost Resin mass2.41737 kgrresinmass Cost of resin33.3909 EURresincost Resin volume1777.48 cm3ResinVolume Total mass of one generator rotor10.1959 kgrTotalMassRotor Cost of iron16.2258 EURironcost Surface area of moulds0.39271 m2woodS Total cost of moulds62.2053 EURwoodcost Output files Octave/Matlab variable file: simulation-9683.mat Input parameters Blade Rotor Inputs Turbine radius: 0.90mAerodynamic coefficient: 0.35Cut-in wind speed: 3.00m/sNominal wind speed: 9.00m/sCut-in TSR: 5.00Design TSR: 6.00Air density: 1.204kg/m³ Generator Rotor Inputs AFPM rotor topology: Double RotorMagnetic material: Ferrite C8Number of generator poles: 12Magnet length: 50mmMagnet width: 60mmMagnet thickness: 20mmRotor disk thickness: User DefinedRotor disk thickness: 10mmMechanical clearance: 3.00mm Generator Stator Inputs Select coil type: RectangularWinding fill factor: User definedWinding fill factor: 0.75Stator thickness: User definedStator thickness: 18mmCurrent density: 5.00A/mm2 System Inputs System voltage: 68.00VNominal voltage: 84.00VTransmission 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 Also run UserAFPM: false Constants Copper resistivity: 1.678E-8 Ω·mCopper density: 8.94g/cm³Iron density: 7.87g/cm³Resin density: 1.36g/cm³
