Aneirin
Posts: 6121
Joined: 3/18/2006
From: Tamaris
Status: offline
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quote:
ORIGINAL: samboct
Well, OT- Aneiren- check out this link on Ven's thread. Seems to me that the missing oil from BP has been found. It's a little surprising that it's on the sea floor, but it may have been the reaction of the dispersant. Maybe the Gulf oil has gone that way too...
Icarys-
Ran some numbers on the costs of supercaps- check JSR Micro (IIRC)- nice supercaps developed in Japan. But compared to the newest lipoly batteries which have C discharge rates of over 50C (50 times capacity)- along with an ability to be charged at over 5C, it's going to be hard to justify the cost of supercaps at this point. The lipolys are cheaper for a given watt application, easier to use (lipoly voltage stays constant as a function of charge- supercap voltage decays linearly making the power electronics more complex and probably even have better power density. The only advantage to the supercaps is the very long cycle life- measured in the millions.
In terms of wheel based alternators- it's called regenerative braking these days and was really a good app for a supercap. Doesn't seem to have caught on yet, but I could be wrong here. If you're using direct drive motors for the drivetrain, then it's really pretty easy to brake the wheel and get some charge back out-assuming that your battery can take that rate of charge. Some hybrid systems using both supercaps for this charging/braking were to be coupled with batteries to match the charge rates.
Sam
Well, not off topic actually, for the thread is about another Gulf oil platform exploding and burning, not batteries, that is off topic. I simply asked what was going on with the subject of the original topic, because the news is not awash with it, it seems as if it never even happened given the level of publicity it received, which is strange given the uproar over the Deep Water Horizon disaster.
Oil coming from the Mariner production platform, was/is there any, does it pose a risk to the enviroment or what, it's all gone very quiet.
Oil on the sea floor quite possibly from the Houston based Mariner platform as well as BP's rig, well if it is, whose taking the blame for that, BP or BP and those who added to it, has the Mariner rig got away with it in terms of it's spillage, just a case of lob the oil on the sea floor in with BP's responsibility and forget about it, or are they going to be made responsible for their mess.
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Everything we are is the result of what we have thought, the mind is everything, what we think, we become - Guatama Buddha
Conservatism is distrust of people tempered by fear - William Gladstone
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RE: Gulf oil platform explodes, burning off La. coast - 
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