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Unread 01-29-2006, 02:57 PM   #34
bobo5195
Cooling Savant
 
Join Date: Aug 2005
Location: uk
Posts: 400
Default Re: Giving my test equipment away?

Chem Eng is hard but you get good money from it in the end. The investment banks luv chem eng graduates because they stick at it. I also presume because not many people like it and it is hard so those that go through it. Engineering degrees in the UK are completely different to the USA. They bear almost no relation in the way we do things.

Ah Detica is not the only one option there are many others so nothing is determined yet, been very bad about applying. All are challenging and interesting:

Deutsch bank, energy derivatives trading – no time for life but im a big playa can afford some expensive stuff. May gold plate my PC. May die from stress (believe me this is not a joke I know ppl who have seen it happen) or I will get rich.
50 cent would be proud.
Qinetiq – Ultra high spec military engineering the equivalent of working for Lockheed martin skunkworks / department of defence in the USA. Do most of British military research. That will probably also be confidential don’t know if I can post if working in the same area.
Engineering consultancy – No practical experience and tell ppl what they already know but money and travel the world for free. You can earn serious cash working in Iraq for example if your willing to take the risk.
RCA Integrated Design Course - £18k a year so nasty but the most prestigious Design course in the world. Hard as nails to get into and if I graduate I will never have a boring job again. Former graduates include Jonathan Ives at Apple. Mr Dyson of vacuum cleaner fame. http://www.designcreate.info/ , some nice ideas in there.
Watercooling for non-scientists testing rig as a final year project? :P
PhD/ Masters at Stanford, MIT. Might want somewhere warmer and I need to cover up my bad grades from not revising/ doing tutorial sheets though. I was thinking Caltech but my housemate says they’re shit apparently, maybe Berkley I don’t know about these American schools and I would need a good reference and some cash I think.

While I remember there are novel testing methods that could be done as well. Know one here has considered having how water connected to a cold cpu. 2nd law irreversibility’s may play a part but it is certainly a way of getting rid of the cpu problems. It is a method at least but I’m not sure how well it would work.

Been having a look at direct die cooling with FC – 77 . I mention this not because it’s a good way of cooling the cpu it’s not (see below cos I know some of you will be interested) but the experiments there had a long term variability of 0.4%. Of that 0.3% was from source (cpu die) and they are using similar die sims as the DIY guys around here.

Cooling wise this doesn’t work cos while FC 77 is good it is not as good as water. For one it is 1.7 times the density of water and has a 1/10 of the conductivity (jet impingement performance is roughly equal to thermal conductivity). For 5lpm and a single jet nozzle you get h = 4000 W/m^2 which gives a W/c of 0.8 (dc althon64) which is nowhere good enough. I think I could get it better maybe up to about h=20000 W/c using multi jets maybe try crossflow as well but still not good enough. There maybe some benefit as the resistance of the thermal paste is removed so cooling of hot spots could be more effective. Will have a look at ways of making it better in the literature as well.

FC 77 is flourinert – water with fluorine instead of hydrogen. Low freezing point of about -70c. non toxic but I doubt anything would grow. Clear and just like water as well so you can run an lcd in it , but cost about $250 a litre. Definitly pimp look Ma ive put a hair dryer and a hand in a bucket of water.
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