Clone of Clone of Clone of Clone of na8 | Online Design Tools for Locally Manufactured Small Wind Turbines

Submitted by AHMEDNA8 on Wed, 11/11/2020 - 21:16

Duration:

00:00:43

Tabs

Results

Blade Rotor Outputs
Property	Value	Variable name
RPM at the cut-in wind speed (TSR)	113.998 RPM	n_cut_in
RPM at the nominal wind speed (TSR)	370.562 RPM	n_nom
Nominal tip speed ratio	9.4809	tsr_nom

Generator Rotor Outputs
Property	Value	Variable name
Rotor disk thickness	10 mm	hr
Magnet width-to-pole pitch ratio	0.271381	ai
Inner-to-outer magnet radius	0.918229	kd
Flux density in airgap	0.154317 T	Bmax
Flux density on magnet surface	0.178676 T	Bmg
First harmonic of flux density in airgap	0.0850976 T	Bp
Flux per pole (Calculated)	0.000178702 Wb	Flux_pole
Magnets on a rotor disk	32	magnet_num
Distance between magnets	63.1943 mm	dist_magnet_Rin
Magnet mass	3200 g	MagnetMass
Magnet density	5 g/cm3	mag_density
Volume of a single magnet	10000 mm3	Vmag
Volume of all magnets	640000 mm3	VolumeMagnet
Remanent magnetic flux density	0.39 T	Br
Magnetic coercivity	227950 A/m	Hc
Maximum Energy Product	30 KJ/m³	BHmax
Outer diameter	978.659 mm	Dout
Average radius	469.17 mm	Ravg
Inner radius	449.17 mm	Rin
Outer radius	489.329 mm	Rout
Effective outer radius	489.17 mm	Rout_eff
Mass of rotor disks	118.401 kgr	BackIronMass
Volume of rotor disks	15044.7 cm3	BackIronVolume
Maximum flux density in the magnet rotor disk	0.271003 T	SaturMAX
Is the magnet rotor disk saturated?	No	Saturation

Generator Stator Outputs
Property	Value	Variable name
Stator thickness	15 mm	tw
Number of phases	3	nphase
Number of coils per phase	8	q
Total number of coils in stator	24	coil_num
Number of turns per coil	28	Nc
Copper wire diameter	1.7 mm	dc
Number of wires at hand	5	No_wires_at_hand
Winding fill factor	0.44	kf
Copper wire cross-sectional area	11.35 mm2	sc
Copper wire cross-sectional area (Calculated)	11.3246 mm²	sc_theor
Copper wire cross-sectional area of a sinlge wire	2.27 mm²	sc_multi_wires
Copper wire diameter (Calculated)	3.79818 mm	dc_theor
Coil leg width	48.633 mm	wc
Average length of coil turn	255.101 mm	lavg
Stator nominal temperature	38.524 C°	tc_real
Stator surface area	5955.05 cm²	stator_surface_area
Heat coefficient	0.0934503	cq_real
Current density	3.99103 A	Jmax_real
Resistivity of copper at nominal temperature	1.79563E-8 Ohm.m	pt
Resistance of a single coil	0.0113003 Ohm	Rc
Phase resistance	0.0904028 Ohm	Rphase
Phase inductance	0.000415888 H	Ls
Nagaoka constant	0.15284	Kn
Winding coefficient	0.95	kw
Volume of a single coil	186095 mm3	coil_volume
Weight of a single coil	776.546 g	coil_weight_constr
Coil hole at Ravg	25 mm	coil_hole_Ravg
Coil hole at Rin	19.8247 mm	coil_hole_Rin_constr
Coil hole at Rout	30.2934 mm	coil_hole_Rout_constr
Coil mass for construction	19.4137 kgr	mcu_constr
EMF at the cut-in wind speed (Calculated)	5.132 V	EMF_cut_in
EMF at the nominal wind speed (Calculated)	16.6869 V	EMF_nom
Current at the nominal wind speed	45.2982 A	Iac_nom
Terminal voltage at the nominal wind speed	11.2904 V	V_term_line
Nominal frequency	98.8166 Hz	fnom
Generator power (Calculated)	1534.31 W	Pnom
Copper losses (Calculated)	556.501 W	Pcopper
Eddy current losses (Calculated)	85.3827 W	Peddy
Generator efficiency (Calculated)	0.670711	efficiency_real
AC Power at the rectifier (Calculated)	1380.88 W	Pnom_rect
DC Power at the batteries (Calculated)	1242.79 W	Pnom_dc

Generator Bearing Hub Outputs
Property	Value	Variable name
Number of bolts on hub	5	No_bolts_hub
Mass of bearing hub	8344.46 g	BearingHubMass
Rotational losses (Calculated)	111.391 W	Prot

Costs, Mass and Volume
Property	Value	Variable name
Total generator cost	867.079 EUR	Totalcost
Total generator mass	148.726 kgr	TotalMass
Total generator volume	43.6295 dm3	TotalVolume
Blade rotor mass	20.3543 kgr	blade_rotor_mass
Softwood density	500 kgr/m³	softwood_density
Cost of magnets	71.3193 EUR	Magcost
Magnet shipping cost	38.6473 EUR	shippingcost
Copper mass	17.3946 kgr	mcu
Cost of copper	256.745 EUR	coppercost
Resin mass	9.73019 kgr	resinmass
Cost of resin	134.402 EUR	resincost
Resin volume	7154.55 cm3	ResinVolume
Total mass of one generator rotor	60.8007 kgr	TotalMassRotor
Cost of iron	145.634 EUR	ironcost
Surface area of moulds	1.63497 m2	woodS
Total cost of moulds	258.979 EUR	woodcost

Output files

Octave/Matlab variable file:

simulation-6565.mat

Input parameters

Blade Rotor Inputs

Turbine radius:

2.20m

Aerodynamic coefficient:

0.34

Cut-in wind speed:

3.00m/s

Nominal wind speed:

9.00m/s

Cut-in TSR:

8.75

Design TSR:

7.00

Air density:

1.204kg/m³

Generator Rotor Inputs

AFPM rotor topology:

Double Rotor

Magnetic material:

Ferrite C8

Number of generator poles:

Magnet length:

40mm

Magnet width:

25mm

Magnet thickness:

10mm

Rotor disk thickness:

Calculated

Mechanical clearance:

1.50mm

Generator Stator Inputs

Select coil type:

Keyhole

Winding fill factor:

Calculated

Stator thickness:

Calculated

Current density:

4.00A/mm2

System Inputs

System voltage:

12.00V

Nominal voltage:

24.00V

Transmission cable losses:

10.00%

Rectifier losses:

10.00%

Financial

Copper price:

12.00€/kg

Iron price:

1.00€/kg

Resin price:

11.23€/kg

Plywood price:

17.60 €/m²

Simulation Inputs

Also run UserAFPM:

false

Constants

Copper resistivity:

1.678E-8 Ω·m

Copper density:

8.94g/cm³

Iron density:

7.87g/cm³

Resin density:

1.36g/cm³