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

Submitted by hmos on Tue, 05/05/2020 - 19:21

Duration:

00:00:01

Tabs

Results

Blade Rotor Outputs
Property	Value	Variable name
RPM at the cut-in wind speed (TSR)	50.1592 RPM	n_cut_in
RPM at the nominal wind speed (TSR)	69.1633 RPM	n_nom
Nominal tip speed ratio	3.61955	tsr_nom

Generator Rotor Outputs
Property	Value	Variable name
Rotor disk thickness	10 mm	hr
Magnet width-to-pole pitch ratio	0.0577695	ai
Inner-to-outer magnet radius	0.965809	kd
Flux density in airgap	0.54 T	Bmax
Flux density on magnet surface	0.62 T	Bmg
First harmonic of flux density in airgap	0.4 T	Bp
Flux per pole (Calculated)	0.0008556 Wb	Flux_pole
Magnets on a rotor disk	16	magnet_num
Distance between magnets	480.273 mm	dist_magnet_Rin
Magnet mass	3312 g	MagnetMass
Magnet density	7.5 g/cm3	mag_density
Volume of a single magnet	13800 mm3	Vmag
Volume of all magnets	441600 mm3	VolumeMagnet
Remanent magnetic flux density	1.45 T	Br
Magnetic coercivity	1120020 A/m	Hc
Maximum Energy Product	422 KJ/m³	BHmax
Outer diameter	2690.97 mm	Dout
Average radius	1322.4 mm	Ravg
Inner radius	1299.4 mm	Rin
Outer radius	1345.48 mm	Rout
Effective outer radius	1345.4 mm	Rout_eff
Mass of rotor disks	895.181 kgr	BackIronMass
Volume of rotor disks	113746 cm3	BackIronVolume

Generator Stator Outputs
Property	Value	Variable name
Stator thickness	13 mm	tw
Number of phases	3	nphase
Number of coils per phase	4	q
Total number of coils in stator	12	coil_num
Number of turns per coil	106	Nc
Copper wire diameter	1.9 mm	dc
Number of wires at hand	8	No_wires_at_hand
Winding fill factor	0.57	kf
Copper wire cross-sectional area	22.72 mm2	sc
Copper wire cross-sectional area (Calculated)	55.8079 mm²	sc_theor
Copper wire cross-sectional area of a sinlge wire	2.84 mm²	sc_multi_wires
Copper wire diameter (Calculated)	8.43166 mm	dc_theor
Coil leg width	325.009 mm	wc
Average length of coil turn	1172.53 mm	lavg
Stator nominal temperature	871.493 C°	tc_real
Stator surface area	91460 cm²	stator_surface_area
Heat coefficient	1.68339	cq_real
Current density	14.738 A	Jmax_real
Resistivity of copper at nominal temperature	2.09179E-8 Ohm.m	pt
Resistance of a single coil	0.11443 Ohm	Rc
Phase resistance	0.45772 Ohm	Rphase
Phase inductance	0.0133975 H	Ls
Nagaoka constant	0.028187	Kn
Winding coefficient	0.95	kw
Volume of a single coil	4954080 mm3	coil_volume
Weight of a single coil	25721.3 g	coil_weight_constr
Coil hole at Ravg	30 mm	coil_hole_Ravg
Coil hole at Rin	30 mm	coil_hole_Rin_constr
Coil hole at Rout	30 mm	coil_hole_Rout_constr
Coil mass for construction	334.377 kgr	mcu_constr
EMF at the cut-in wind speed (Calculated)	10.264 V	EMF_cut_in
EMF at the nominal wind speed (Calculated)	14.113 V	EMF_nom
Current at the nominal wind speed	334.847 A	Iac_nom
Terminal voltage at the nominal wind speed	11.2904 V	V_term_line
Nominal frequency	9.22178 Hz	fnom
Generator power (Calculated)	11341.7 W	Pnom
Copper losses (Calculated)	153962 W	Pcopper
Eddy current losses (Calculated)	745.567 W	Peddy
Generator efficiency (Calculated)	0.0682366	efficiency_real
AC Power at the rectifier (Calculated)	10207.5 W	Pnom_rect
DC Power at the batteries (Calculated)	9186.76 W	Pnom_dc

Generator Bearing Hub Outputs
Property	Value	Variable name
Number of bolts on hub	8	No_bolts_hub
Mass of bearing hub	29669.2 g	BearingHubMass
Rotational losses (Calculated)	161.442 W	Prot

Costs, Mass and Volume
Property	Value	Variable name
Total generator cost	7969.93 EUR	Totalcost
Total generator mass	1244.87 kgr	TotalMass
Total generator volume	335.551 dm3	TotalVolume
Blade rotor mass	238.945 kgr	blade_rotor_mass
Softwood density	500 kgr/m³	softwood_density
Cost of magnets	380.432 EUR	Magcost
Magnet shipping cost	26.6667 EUR	shippingcost
Copper mass	302.94 kgr	mcu
Cost of copper	4471.4 EUR	coppercost
Resin mass	43.4382 kgr	resinmass
Cost of resin	600.007 EUR	resincost
Resin volume	31939.8 cm3	ResinVolume
Total mass of one generator rotor	449.247 kgr	TotalMassRotor
Cost of iron	1101.07 EUR	ironcost
Surface area of moulds	8.94587 m2	woodS
Total cost of moulds	1417.03 EUR	woodcost

Output files

Octave/Matlab variable file:

simulation-6356.mat

Input parameters

Blade Rotor Inputs

Turbine radius:

5.00m

Aerodynamic coefficient:

0.30

Cut-in wind speed:

3.00m/s

Nominal wind speed:

10.00m/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:

NdFeB N52

Number of generator poles:

Magnet length:

46mm

Magnet width:

30mm

Magnet thickness:

10mm

Rotor disk thickness:

Calculated

Mechanical clearance:

3.00mm

Generator Stator Inputs

Select coil type:

Rectangular

Winding fill factor:

Calculated

Stator thickness:

Calculated

Current density:

6.00A/mm2

System Inputs

System voltage:

24.00V

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:

true

Simulation step:

Current step:

RPM Step:

Mesh size:

Automesh

Constants

Copper resistivity:

1.678E-8 Ω·m

Copper density:

8.94g/cm³

Iron density:

7.87g/cm³

Resin density:

1.36g/cm³