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Wasabi the J posted:WE nor OUR employees weren't the negligent ones, Shill Dynmanics sub-contractors and Pilate's Consulting firms supervisors are the ones who made the call to do this terrible terrible thing... I have mentioned before that OSHA inspections are generally a non-thing because the fines haven't been updated in 30 years, but an insurance visit will have everyone making GBS threads bricks because it involves sums of money you could never imagine. You end up with weird edge cases like that gas terminal explosion because gas is in a super weird position where oil companies so terrified of losing the pennies of profit on it they've strong armed all the relevant standards to treat an explosive carcinogen as basically safe, so that gas terminal could argue to the insurer that they were basically state of the art.
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Oct 22, 2015 19:24
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Complete teardown of a lithium phone battery. https://www.youtube.com/watch?v=uI1eRy0uBI8 Don't try this at home. Lithium batteries can burst into flames violently or even explode if pierced.
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Oct 22, 2015 21:41
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KozmoNaut posted:Complete teardown of a lithium phone battery. Yeah, I would never do this. At work, we've sent li-ion cells back to the manufacturer for teardown and x-ray analysis, but they actually know what they're doing.
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Oct 22, 2015 22:36
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allahu akbar https://www.youtube.com/watch?v=7-xPHopebiE
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Oct 22, 2015 22:51
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Jesus, fcuk! I'm carrying something like that next to my genitals?
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Oct 22, 2015 23:07
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spog posted:Jesus, fcuk! I'm carrying something like that next to my genitals? Don't carry it in the same pocket as your knife.
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Oct 22, 2015 23:13
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spog posted:Jesus, fcuk! I'm carrying something like that next to my genitals? This one WEIRD trick TERRORISTS don't WANT you to know1!
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Oct 22, 2015 23:19
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spog posted:Jesus, fcuk! I'm carrying something like that next to my genitals? It's not that the case is protecting the phone, but protecting you from the phone.
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Oct 22, 2015 23:19
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spog posted:Jesus, fcuk! I'm carrying something like that next to my genitals? And yet you can't bring a bottle of water on an airplane
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Oct 22, 2015 23:22
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Kerosene19 posted:Its about $30,000 to outfit and commission single tank with Rosemount gauging. This is why they don't have me do estimating where I work. I do like the Rosemounts though, not cheap but they work well. Hard to read the integral displays though. More snakes: http://imgur.com/gallery/pJdGG And hornets:  Nope nope nope nope nope (close and lock the door to the connection compartment) nope nope nope nope Three-Phase fucked around with this message at 00:19 on Oct 23, 2015 |
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Oct 23, 2015 00:10
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Three-Phase posted:This is why they don't have me do estimating where I work. I think you forgot to estimate labor costs, you just priced out materials.
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Oct 23, 2015 00:17
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Azhais posted:And yet you can't bring a bottle of water on an airplane Yes you can.
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Oct 23, 2015 00:21
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Baller Witness Bro posted:Yes you can. You just can't bring it through security
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Oct 23, 2015 00:22
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VendaGoat posted:You just can't bring it through security its like most amusement rides, they make the money on concessions.
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Oct 23, 2015 00:23
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I'd say the video title is a little misleading. It's more like "stripping a phone battery out of its case and stabbing it 3 or 4 times and then poking it with a knife blade for good measure results in explosion".
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Oct 23, 2015 00:29
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Zamboni_Rodeo posted:I'd say the video title is a little misleading. It's more like "stripping a phone battery out of its case and stabbing it 3 or 4 times and then poking it with a knife blade for good measure results in explosion".
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Oct 23, 2015 01:44
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Alereon posted:That will happen with any other Lithium Ion (and Polymer?) battery if damaged, say from being dropped, or spontaneously if it's horribly made Chinese crap. E-cigarette batteries can literally blow apart your face so this isn't some weird theoretical fear. I liked the "Is it a Good Idea to Microwave This?" episode where they put a Li-Poly battery in the microwave. https://www.youtube.com/watch?v=BRwyiR-FnhQ "Dude, it says we shouldn't leave it in direct sunlight, and we're putting it in a microwave."
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Oct 23, 2015 01:52
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KozmoNaut posted:Complete teardown of a lithium phone battery. I work in a cell phone/tablet repair shop, and the first time my boss showed me how to change an iPad battery, he ruptured it while trying to get it unglued. Nasty smoke started pouring out of it. We ran it outside and set it down far away from us until it stopped, and propped the store door open to let it air out from the 30 seconds it was still indoors. Hasn't happened again since then, but some of those batteries are really stuck in there so I'm always ready to run with it and careful with the prying tools.
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Oct 23, 2015 02:05
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What kind of prying tools do you have? Plastic or metal? Just curious.
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Oct 23, 2015 02:12
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Three-Phase posted:I liked the "Is it a Good Idea to Microwave This?" episode where they put a Li-Poly battery in the microwave. Lithium-polymer batteries have also been known to explode and heat up when used in airsoft guns. I know of at least one guy who ended up dropping his gun from heat because the battery in the handguard started melting the plastic. They managed to drag it out to the parking lot to smolder itself to death.
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Oct 23, 2015 05:29
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https://www.youtube.com/watch?v=fkP-b1ADvbk&t=218s
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Oct 23, 2015 06:09
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So, how exactly do these batteries turn into flamethrowers? Is it just a rapid exothermic reaction started when exposed to air, or something else?
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Oct 23, 2015 11:36
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Perestroika posted:So, how exactly do these batteries turn into flamethrowers? Is it just a rapid exothermic reaction started when exposed to air, or something else? They short out and dump all of their stored up energy into themselves, which is a highly exothermic process. ~2-3 amp-hours in such a small package is a lot of energy.
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Oct 23, 2015 11:43
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They're seriously being considered as the cause for MH370 and pallets of Li-ion batteries have killed pilots before when they spontaneously combusted (the batteries, not the pilots or pallets) Boeing and Airbus put some new cargo handling procedures out for batteries I believe last year
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Oct 23, 2015 11:54
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simplefish posted:They're seriously being considered as the cause for MH370 and pallets of Li-ion batteries have killed pilots before when they spontaneously combusted (the batteries, not the pilots or pallets) Yup we had to completely redo how we ship larger uav batteries, lots of new safety regs
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Oct 23, 2015 12:00
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I should ask today if anyone has ever considered switching the lead-acid jars for our substations over to lithium batteries. The thing with the jars is you can maintain them, check electrolyte level and look at the condition of the plates inside, that sort of thing. They're like really large transparent car batteries.
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Oct 23, 2015 12:14
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Three-Phase posted:I should ask today if anyone has ever considered switching the lead-acid jars for our substations over to lithium batteries. The thing with the jars is you can maintain them, check electrolyte level and look at the condition of the plates inside, that sort of thing. Lead-acid is better if you aren't on the move and have enough space. The price and maintainability beat lithium.
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Oct 23, 2015 12:23
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Uthor posted:What kind of prying tools do you have? Plastic or metal? Just curious. Both, depending on what we're prying. For most batteries, we use a curved metal one, but with the iPad batteries being so big and having so much adhesive, it probably wasn't the right one to use.
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Oct 23, 2015 12:26
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Three-Phase posted:And hornets: How big is that, approximately?
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Oct 23, 2015 13:01
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Three-Phase posted:And hornets: Those are gas hornets. Don't disturb them if you want your gas, poster. Also ask a professionnal oil harvester for help with those. DO NOT TRY THE "FORK TRICK" IT DOESN'T WORK.
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Oct 23, 2015 13:29
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Lurking Haro posted:Lead-acid is better if you aren't on the move and have enough space. Lead-acid has considerably better energy density too, the only advantage of lithium-chemistry batteries is that they're a shitload lighter, as a quick glance at the periodic table should tell you. (There are some other advantages for certain edge cases too)
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Oct 23, 2015 13:36
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goddamnedtwisto posted:Lead-acid has considerably better energy density too, the only advantage of lithium-chemistry batteries is that they're a shitload lighter, as a quick glance at the periodic table should tell you. I think I've heard of lithium chemistry of some sort getting used in industrial or server farm settings when it must absolutely fit in a shoebox but its avoided at all costs because banks of lithium chemistry cells are terrifying.
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Oct 23, 2015 13:52
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Thanks for the lamest video on youtube.
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Oct 23, 2015 14:21
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Three-Phase posted:I should ask today if anyone has ever considered switching the lead-acid jars for our substations over to lithium batteries. The thing with the jars is you can maintain them, check electrolyte level and look at the condition of the plates inside, that sort of thing. Space/weight isn't a premium in that context so they're not going anywhere. Do one better, needle them to switch over to glorious iron-nickel cells 
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Oct 23, 2015 14:51
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zedprime posted:I don't think properties work the way you think they do. That's not how the periodic table works. Lead acid cells have worse energy density by either measure of weight or volume. It was a flippant joke about lead being heavier than lithium. But for energy density in volume terms (which is what energy density means, energy per weight is something else I forget the name of) lead-acid is still the winner for any decent amount of load. Li-Ion gets better theoretical density but in practical applications, as I think you were alluding to when you mentioned banks of lithium batteries, a LI-Ion battery capable of cranking out any decent amount of current is basically an unexploded bomb. Lithium does not fail safe in the same way that lead-acid does (although it's hard to use "safe" to describe boiling sulphuric acid and clouds of hydrogen, they can at least be dealt with with conventional firefighting equipment), so you have to pay way more attention to cooling and shielding than you do for a lead-acid bank. As far as I know the only use of lithium in high-power applications has been on modern airliners, and the record on that has not been brilliant...
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Oct 23, 2015 14:56
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Not to mention that Lithium demand already far outstrips mining supply and since every-loving-thing is now carrying a Lithium battery that already large gap is due to get exponentially larger real real soon.
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Oct 23, 2015 15:55
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Good, that means we'll finally start seeing new battery tech if Lithium becomes too rare.
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Oct 23, 2015 16:55
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Now you've got me wondering how big a lead-acid battery you'd need to run a smartphone as long as a lithium cell.
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Oct 23, 2015 17:15
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Nfcknblvbl posted:Good, that means we'll finally start seeing new battery tech if Lithium becomes too rare. Or we'll open up 3 new mines in North America (2 for Tesla alone).
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Oct 23, 2015 17:15
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| # ? Jun 6, 2024 22:43 |
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http://crossfade.io/#!/dtndmjzy5o
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Oct 23, 2015 17:42
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