Wednesday 15 August 2007

Experiment

I got a good news phone call this morning from one of the guys at the solar panel ompany, they've decided to let me do the experiment that I've been planning for a bit! Basically the massive majority of the cost of solar panels is the silicon that they use for it itself. It has to be so pure that they need some very energy intensive methods to purify it far enough (solar panels aren't quite as green as people like to think, they spend about half of their lives paying back the energy it cost to make them and they also leave a trail of chemical nasties) which is expensive. Consequently, people are looking at many new types of panel that need less material to work.

The easiest solution, of course, is simply to use thinner panels - which is exactly what I want to try. The problems include that they will be more fragile, and also that they will bend more during the sintering (heatin at about 500 degrees C) that they undergo, which might make them not work. On the other hand, any thickness reduction means big cost cuts, so it might be worth it. I want to basically thin some slices down about 10 or 20% and see what the effect is on their power output at the end, it's something that they've been interested in before but haven't actually tried yet, and I think they're keen to see what happens. They also have a new machine fairly recently that will allow very good thickness measurements.

My professor returns on Monday, so I'll probably try and get over there on tuesday to begin, and it might take the rest of the week to get done, but should be a lot of fun!

In other news, I finally cracked last night at the expat event and ordered the following monster:


I've been told on certain streets you can even find proper Turkish kebabs in polystyrene boxes, so I'm going to have to hunt one of those down next time. There is documentary proof of my betrayal of chinese food at http://www.shanghaiexpat.com/modules.php?set_albumName=album06&id=IMG_1010_001&op=modload&name=mdGallery&file=index&include=view_photo.php it's photo 19 if it doesn't come up automatically!

After the expat event Valencia got us guestlist entry and free drinks at the surprisingly retro disco club G Plus in a swanky mall in Xin Tan Di (her company helps market things in Shanghai. Apparently the locals tend to spend more in clubs than stingey foreigners, but they prefer clubs that have a few around and thus spend even more, so clubs like to encourage us to visit them). Very good club with good music and a very '80s mirrored theme, my only complaint (as with so many clubs here) was the narrow passageways and the insane amount of space dedicated to tables (which is how clubs here seem to make most of their money). On the whole big thumbs up tho!

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