Free sample chord sections for blades between 0.7 and 0.8 m
FREE
Sample chord
sections can be
generated for
blades between
0.70 to 0.80 m (550
Watts to 710 Watts).
Blade Calculator
Design custom blades for your generator and calculate power output at each wind speed.
Frequently asked questions about plan orders, blade design, electrical work and generator matching can be found on our Q&A pages.
Welcome to Warlock Engineering
Free Wind Turbine Blade Calculator Software and Plans
500 Watt Kevlar Wind Turbine, 3 Blades, 1.4 m Diameter
Wind turbine stencil pdf generator
Solar panels built from individual photovoltaic cells
10 kW Carbon Fibre Blades
1.8 m Carbon Fibre Blades and Generator
600 Watt Dumpload Charge Controller
300 MHz NMR Magnet Deconstruction
NEWS & UPDATES
Microwave Chemistry Reactor
Custom Wind Turbine Blade Plans Available from $4.95
Free plans for 500 W blades
with each purchase.
Preview of bonus material included with every purchase

       Articles in PDF format

Microwave Chemistry Reactor [PDF]
Design, simulation and construction of a
microwave reaction chamber.

Dielectric ‘Loss Factor’ (e’’)
Measurement for Common Organic
Solvents. [PDF]
Loss factor measurements for organic
solvents at frequencies 0.1 - 40.0 GHz.

Deconstruction of a 300 MHz
Cryomagnet for NMR Spectroscopy [PDF].

Wind Turbine Articles in PDF
BLADES:
1.4 Metre Diameter 3-Blade Wind Turbine Construction  [PDF]

10 kW (13 m/s), 5 Metre Diameter Carbon Fibre Blades for Wind Turbine  [PDF]
BLADES AND GENERATOR:
1.8 Metre Diameter Carbon Fibre Wind Turbine Blades and Generator  [PDF]
GENERATOR:
10 kW, 15 Phase Axial Flux Pancake Generator for 2-Blade Wind Turbine  [PDF]
Welcome and thanks for visiting our site. Access free design software or read documentation on wind turbines or other research projects. Your support allows us to provide more free online resources, tools and content for the diy community. Find some interesting projects along with popular web content using the links on this page or from the menu bar.  .
1.4 Metre Diameter 3-Blade Wind Turbine Construction
1.4 Metre Diameter 3-Blade Wind Turbine Construction
Wind turbine stencil pdf generator
Background summary of selected projects
                                           
     Wind turbine technology has an identified limit for the efficiency in which kinetic energy can be converted into electricity, described mathematically as the 'Betz Limit' of ~59%.

Slow moving 'windmills' have blades that move due to air resistance (drag), although modern wind turbines use knowledge about aerodynamics to incorporate an airfoil shape, providing 'lift' force on the blade.
     Software for the designing wind turbines  of specified size, speed and blade number, remains a focus of our research.

Our wind turbine calculations were established in the original 'Blade Calculator' for Windows 95 by using the experimental measurements obtained during the controlled testing of completed turbine builds.

Free Wind Turbine Blade Calculator Software and Plans


Wind Energy Technology
Wind Energy Software
Online Blade Calculator Software
Free Wind Turbine Blade Calculator Software and Plans
Use our online blade calculator to design wind turbine blades for your generator.
     The generators specified rotational speed (RPM) needs to closely match the turbines RPM at operating wind speeds to produce the power and voltage rated on the generators plate.
     The power that can be converted into electricity from wind energy is proportional to the radius. The average windspeed is adjusted to suit the location and can be useful to approximate the increase in blade radius required for low wind speed.
Modifying the blades shape will change the ratio between the tip speed of the blade and incoming wind speed (TSR); lesser number of blades can spin at a higher TSR.
Two bladed turbines operate in a TSR range between 8 and 10, with 3 bladed turbines spinning at a TSR between 6 to 7. 
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Background summary of selected projects

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Electrical Circuit Design
600 Watt Dumpload Charge Controller
     Power output from the turbines electrical generator will change depending on the RPM. With small domestic wind turbines the excess power needs to be managed.
Rapid increases of voltage (and current) due to wind gusts can be regulated using the dumpload electronic circuitry. This protects the system output from overvoltage and  excess energy is expended in a 'dumpload' resistor as heat.
Wind Turbine Blade Manufacture
5 m Carbon Fibre Blades
   Manufacture of wind turbine blades involves making a choice of materials (wood, plastic or composite) and this can determine your working techniques.
The weight of the final blade set should be considered. Blade weight and radius contribute towards a combination of stresses on the generator and hub. Heavy objects also require more energy to reach high velocity in the force of the wind.
Fibreglass Blades
500 Watt Kevlar Wind Turbine, 3 Blades, 1.4 m Diameter
    Construction methods using plastic composite materials allow the blade weight to be significantly reduced leading to faster start-up.
The advantages of using plastic composites to produce blades and moulds includes improvements in accuracy for blades that taper and twist. The increased strength and rigidity of materials maintain blade shape at high velocity and throughout the weathering process.
  The construction accuracy of airfoil dimensions (including angle and positioning along the blade) is only limited by ones personal experience and technique. Plastic composites can be more amendable to address these deficiencies.
General Unit Converter
General Unit Converter
Vertical Axis Wind Turbine (VAWT) Blade Design App
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Background summary of selected projects

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Matching Blades and Generators
Heating by Microwave Energy
1.8 m Carbon Fibre Blades and Generator
  Suitable generators function in weathering conditions, have known power output and rated operating velocity (RPM).
Your customised turbine specifications will give a unique profile for power output with increasing wind speed.
The measured power curve for your generators RPM should closely match the effective blade power at the optimal TSR.
10 kW Axial Flux Generator
Electronic means of adjusting or stopping the wind turbine operation in high wind speed include a circuit system for braking. This is needed if the generator begins to produce overvoltage.
   The generator 'voltage per RPM' will determine the load that can be used to draw current from the entire generating system. The blades must reach the optimum TSR and high efficiency needed to maintain power production.
600 Watt Dumpload Charge Controller
Details of the microwave reactor design are given along with the 2.45 GHz RF simulation used to assess the expected leakage from the reaction chamber. 
   The use of microwave radiation to  supply thermal energy for chemical reactions has been studied, along with reactor vessel design.
Microwave absorption of organic reagents and solvents with different functional groups have been measured and graphed over a range of radio frequencies (RF).
Microwave Chemistry Reactor
Dielectric loss measurements are used to compare materials at wavelengths other than the commercial 2.45 GHz  frequency
General Unit Converter
General Unit Converter
Vertical Axis Wind Turbine (VAWT) Blade Design App
See full abstracts
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