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  1. acadien

    Quickpanel slow screens

    I have an application that uses most QP elements, when I change QP screens they take about 3 to 4 seconds to display completely. In previous project this was not the case, the screens displayed almost intantly. Anybody got some hints to accelerate displays?
  2. acadien

    Funneling wind

    Sorry LarryXMM no experimental results, I unfortunately lack the time ( I have 4 kids all less than 4) or the resources to build a model ( repeat the last brakets ). But I am still thinking about it especially tonight with a 70Km/h wind outside.... -15C with that.
  3. acadien

    Funneling wind

    Thanks xerxy, I've started scavenging for parts on e-bay (permanent magnet, magnet wire, Diodes, voltage regulator IC, capacitors etc) and started building a small turbine. Working with magnets is interesting and lots of laught when they stick to your tools or you forget you have one in your...
  4. acadien

    Light Guide

    You can always check on e-bay. I saw 25Km of fiber last week.
  5. acadien

    Alternative Energy

    I saw a design once for a cooling tower, where at the top of the tower water was atomised via nozzels, as the water absorbed heat the air becomes cool and denser thus falling inside the tower a creating a cool brease at the bottom. If capture you circulate the water in the ground cooling it...
  6. acadien

    electric powered drive boat

    So 150Hp = 112 Kw, you need a generator this size plus hotel load. I toiled with this idea to place in my "imaginary" boat (I dream a lot)... I would have used 2 X 600VAC motors with 2 AC drives, in your case 2 X 75HP motors at 600VAC that's 75Amps (check the tables.. just a rule of...
  7. acadien

    Funneling wind

    The Idea of a Wind Funnel is more to protect the turbine apparatus so it could be built on the ground. This has some advantages: lower cost for one. The disadvantage is obvious it's tuff to turn the entire thing into the wind. I got the idea by observing the snow drift in the winter. The wind...
  8. acadien

    Funneling wind

    Entrance to the Funnel would be 5m by 5m tapering at a 45deg angle to a conned turbine entrance having a 2inch (0.05m) exposure. The area of the turbine exposed to the wind is calculated by the equation pi*r^2. The outer radius minus the interior radius. e.g wind 10m/s (36Km/hr) A1V1=A2V2 ->...
  9. acadien

    Funneling wind

    I live in a area where the wind comes from the North-West most of the year. In winter (when the air is denser) the wind velocities are very high. So with this in mind I was thinking of building a funnel (5m X 5m entrance reduced to a 0.5m dia cylinder. Inside the cylinder ther would be a one or...
  10. acadien

    Heating of motor by using frequency converter

    Check the motor specs, most motors cannot tolerate low Freqencies unless they are designed for it. Typically if the application calls for less than 20Hz I would use a speciallised motor for VFD application.

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