Hello, sorry it has been soo long. I will post the pictures and a brief description of Berlin when I can, perhaps I will make the paragraphs have themes so you can just read what you are interested in...
The reason I have been so slow is since I have returned it has become full force project time. In face on saturday I had to be in my group room at 9:00 am and today we "slept in" and did not have to arrive until 10:00am. Also when I went to Berlin I printed a full copy of the report which at the time was around 75 pages and edited it in the airport, so it was a working holiday. Now the report is really coming along it is almost a 100 pages total (we are caped at 160 pages not including the appendix). Also the lab work has finally started. Thanks to the improvements that I suggested we actually are getting so very good results. The prototype is the same skeleton as last years group (they also had the same project but we are doing completely different experiments) but there project was very inefficient and at wind speed of 32 m/s (~68 mph) they could only get 0.7 Watts of power and the maximum rpm the could get with no loading on the shaft was about 130. However the improved version we have gets a smashing 1800 rpm when unloaded at a slower wind speed of 18m/s (37mph). We have yet to test the amount of power (Watts) that our project produces however due to the fact that it has limited torque on the shaft I doubt it will be bigger than 5W but that is ok because we expected that. (Our prototype is not very big so high rpm and low torque is an expected result. So that was really exciting. Also are other tests on pitching angle and camber lines have generated the results I expected which is nice.
Ok I need to get back to work. More quick posts like this, because I can do them in between work breaks.
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