I am fabricating a wind turbine (1kw). The cut in speed is assumed to be 2.5-3 m/s and the optimum design speed of 6m/s. I have contacted a person selling LACOTA wind turbine generators (refurbished) which is mainly used in a HAWT. I have googled LAC...
I'm starting this thread to hold all comments / questions / discussion about the spinoff results I'll be posting over the next few months. ... ... The actual results will be posted in the thread called Spinoff Results....
While the title of this thread and maybe my post might come off as sounding prejudice, I wanted to tell my bad experience story. I know some of you guys may be considering ordering magnets from places in China and I want you to be prepared for the p...
You have heard Klyde talk about the virtual AOA due to the circular path of the blade and mounting point. And maybe you have noticed that when someone wants me to test a blade, I always ask where it was mounted. This is also because the mount poin...
I'm creating this thread to hold the spinoff simulation results. I'm going to keep it protected so that this thread will only have results. All comments should be posted to Spinoff Discussion. ... ... For each turbine tested, I'm going to post as ...
For my last wings I needed some foam cut. It turns out you probably have the materials in your garage right now. ... Buy some foam insulation board at the home store. It comes 2" thick is dense and light. Mine is blue. It isn't made of beads...
How much power can you get from a Rahai Profile Savonius with two blades with diameter 1,5m and height 2m? ... ... The average wind at my place is about 4m/s...
... My first post on VAWT.ORG! I have an idea that needs a hearty review by folks with a lot more knowledge on the subject then me. I am a draftsman not an engineer. I draw things and ...
i mount my blades in the center of mass just so that it is easier on the mounts with less twisting action and other stresses. ... I am not an engineer and not afraid to admit it!!! LOL ... I know ther is lots of different rationals for different moun...
This is the largest of the the three types of wings I have made. Starting with the first successful model and then building a 3' X 4' prototype I was confident to go to the big enough to do something size.Here are some photos of the 4' long x 15&quo...
im designing a vawt using naca 0018 with the following specs: ... chord length: 0.42mblade length: 1.5mdiameter of turbine: 3m ... how do i work out the cross sectional area, i would also like to get the data sheets for the naca 0018 to get the lift ...
OK, then, I've made enough progress on parts to start posting the development of this particular design. Using a 5/8" threaded rod in the center, the upper and lower plates will hold the bearing and six threaded blocks to receive sections of t...
I ran across this video while looking at airfoils and thought it was a pretty neat way to make a wing. I think the phlatprinter is a DIY device. ... ... ... ... -- Edited by Caleb on Monday 6th of September 2010 01:32:17 AM...
Here is my latest creation, i have been working on this for the last 9 month. ... ... 2 types: ... Reverse and Forward. ... please refer to them as the "Column R" or "Column F" ... ... The Idea was created, designed and
Well this makes me the newest new guy I guess. Hello all. I'm a wind enthusiast that got my start on a sailboat. My first birthday 48 years ago was on my Grandfathers sloop. He taught me much about the wind and how to bend sails to take advantage of ...
I just made up a set of intentional lift blades (2) and thought that it would be a good thread to look at as it gets debated on the other threads quite a bit and some examples of one way proving out the other and the pros and cons might make for an i...
... I'm contemplating building another windturbine (aren't we all). This one would have a 0.5 m dia Lenz2 inside a 1.6 m dia turbine with NACA0018 blades with 130 mm chord set at 0 degrees. The whole thing would be 0.5 m tall giving it an area of ...
Here is a set of rules I've put together from a half dozen research papers. The main thing is to choose an operating TSR for your Vawt and then run the numbers to setup the entire Vawt. This appears to be the way it's done in most of the research tha...
I was telling Steve what kind of rpm I was getting on my lift blades and he was kind enough to correct me and suggest I start a thread in regards to the circumstances of my error. ... Not being a techie and using technology at threat of my own emmine...
Well im a newbie in this field and have already studied basic principles from different sources....im trying to design a giromill (400 to 500 watts....i think its acheiveable...or not )....but the problem is i searched a lot but didnt get the basic f...
I was trying to put together the rectifier for the alternator in my garage last night following these plans: ... http://www.otherpower.com/rectifier.shtml ... ... I got stuck not even half way through. I am using a terminal strip instead of termi...
Here is my latest (as of 6/12/10) try at a VAWT, or at least my start at it. ... ... I started by making a hub out of wood on a lathe. The wood is round, but not uniform density so there is already a slight imbalance in the hub. I put carriage bol...
When I simulated the remkick, I saw that it got to 58 RPM and didn't want to go any faster without a push. This behaviour was very similar to the NACA0020 in a lower wind. I decided to go in and pick out what was happening. Here is what I think is...
Here's the address for the video. Hopefully the author will tell us more. I have watched his videos. I can relate to his approach and testing methods. As happens to all of us, the day we video the amazing invention there is no wind. Patience is a...
... ... ... I completed fabricating a new VAWT. I still need to attach the PMA. I will first try direct drive and if that proofs not to provide enough RPMs it can easily be configure with a pulley and belt drive. The proto-type shows ...
I thought I'd start a thread for flat bladed turbines. ... ... I built my sign turbine before I was on this forum so there is no thread. ... ... Here is the video for the green one. THe blades were elliptical 9" x .5 so that was pretty flat. ...
