Maximilian Schleeff’s single side chainsaw blade carving method

Posted on 18/08/2013 by hugh

previous video

Dimensions of 3m blade

SAMSUNG

Posted in construction, People, Video links | 1 Comment

More good articles on Paul Gipe’s web site

Posted on 30/06/2013 by hugh

http://www.wind-works.org/ is Paul Gipe’s site and see more links below.

Paul Gipe has published more good stuff on his web site recently about the ‘stuff that doesn’t work’ in the small wind industry today.  It’s a breath of fresh air to read his analysis of the rip-offs and scams that bedevil the marketplace.  It’s always hard to know whether to laugh or cry but it’s at least a good thing that somebody is documenting all this.  The only question is whether the purchasing public will ever learn.  It seems that people would much rather believe in a wonderful new vertical axis invention that produces twice as much power under a bush than believe the expert opinion of people who have been in the industry for decades.

Paul’s new articles:

Rooftop and Urban Wind

Honnewell Windtronics

Shrouded & Ducted Wind Turbines

Vortec

Windtamer

Vertical Axis Wind Turbines

Mariah Windspire

Posted in People, products/technical, Rooftop madness, wind systems tutorial | 1 Comment

Radio masts

Posted on 27/06/2013 by hugh

Assessing a site for a wind turbine is easier these days with good, cheap, loggers available.  But the anemometer needs to be at a suitable height above buildings, trees etc, and not just mounted on a rooftop.

Here are three web links to telescopic masts that can be used for anemometers.

www.radioworld.co.uk/catalog/masts-c-632.html

http://www.radiozing.co.uk/masts_detail.php

http://www.spiderbeam.com/index.php?cat=c12_Aluminium%20Masts.html

 

and here is a good installation guide page http://www.spiderbeam.com/documents/index.php?coID=37

Posted in Rooftop madness, UK small wind scene, wind systems tutorial | Leave a comment

wind turbine service in France

Posted on 08/06/2013 by hugh

4.2 metre, 24V battery charging machine based on my Recipe book and constructed by a Tripalium workshop in France 2 years earlier. In this video Jay Hudnall of Tieole is conducting a service of the turbine with help from the owners. I filmed it.
http://www.tripalium.org/
http://www.tieole.com/
http://www.scoraigwind.com/axialplans…

Posted in France, Video links | 7 Comments

6 watt turbine design from Adriaan Kragten

Posted on 02/06/2013 by hugh

Kragten Design VIRYA-1.04

 

Diameter                                                                           D = 1.04 m

Number of blades                                                             B = 3

Design tip speed ratio                                                      ld = 3.5

Mass                                                                                 including 1 m tower pipe  m = 4.85 kg

Starting wind speed                                                          Vstart = 2.6 m/s

Survival wind speed                                                         Vsurv = 30 m/s

Cut in wind speed (if started)                                          Vcut in = 2 m/s

Rated wind speed                                                             Vrated = 8 m/s

Nominal voltage                                                                12 V DC

Power at rated wind speed                                               P = 6 W

In this manual the 3-bladed VIRYA-1.04, electricity generating windmill, is described. The generator of this windmill is made of a Shimano Nexus hub dynamo type DH-2R40 or another type with similar flange dimensions. It is expected that, together with the detailed drawings, the windmill can be manufactured in a simple workshop.

For more details see the web page of

Adriaan Kragten, B. Sc.

Kragten Design

Populierenlaan 51, 5492 SG Sint-Oedenrode, The Netherlands

Telephone: + 31 413 475770

http://www.bidnetwork.org/en/member/adriaankragten

and download the pdf file manual_virya-1.04_may_2013.pdf

thanks Adriaan!

 

Posted in Adriaan Kragten, Books, construction, People | 1 Comment

video of wind turbine workshop in Denmark 2013

Posted on 29/05/2013 by hugh

My wind turbine buiding worshop was organised by and located at the  Nordic Folkecenter for Renewable Energy, Kammersgaardsvej 16,  Sdr. Ydby, DK-7760 Hurup Thy, Denmark

 

Posted in construction, courses, Video links | Leave a comment

Wind turbine workshop in France 2013

Posted on 29/05/2013 by hugh

Here is a new video of the workshop I helped Tripalium to run in France.  It’s in French language.  Thanks to Jay Hudnall of Ti’eole for inviting me.  Location is  Lîle near Toulouse


 

Posted in construction, courses, France, Video links | Leave a comment

photos of workshop course in Denmark May 2013

Posted on 27/05/2013 by hugh

Date: 20-24th May 2013

Organised by and located at the  Nordic Folkecenter for Renewable Energy, Kammersgaardsvej 16,  Sdr. Ydby, DK-7760 Hurup Thy, Denmark

Participants: 15  people

Project: 3 metre 48-V machine with ferrite magnets (3F design)

Posted in construction, courses, ferrite magnets | 2 Comments

photos of workshop course in France May 2013

Posted on 27/05/2013 by hugh

Date: 13-17 May 2013

Organised by Tripalium and Tieole

Participants: 18 new people, 7 from Tripalium and me, Hugh Piggott

Location: Lîle, Bordeneuve 31290 Vieillevigne (au bord du canal du midi)

Projects: 4.2 metre grid tied, and smaller 2 metre battery charging using 1.8 metre recipe frame.

Posted in construction, courses, France | 3 Comments

photos of workshop course Scoraig April 2013

Posted on 27/05/2013 by hugh

date: 20-27 APRIL

Location: Scoraig

4 participants built a 2 metre ferrite turbine (2F) for 24-v battery charging.  Also balanced and fitted some 3 metre blades to last year’s 3 metre ferrite turbine.

Photo sequence is a bit random sorry.

 

Posted in construction, courses, ferrite magnets, Scoraig | 5 Comments