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Well how do you put out a battery fire? What new materials does every single fire station in America need to acquire? What new skills/training do local firefi
by fullshark 6y ago
Well how do you put out a battery fire? What new materials does every single fire station in America need to acquire? What new skills/training do local firefighters need? Who's going to pay for all this?
- doggodaddo78 6y agoIce water, or something even colder. Water itself isn't what puts out a Li-ion fire, it's ending thermal runaway. The people will pay for it because it's necessary and times have changed.
- bdcravens 6y agoOr they will attempt to pass on the cost to EV manufacturers and/or owners.
- ericmay 6y agoHow novel. I wonder when they’ll pass on the cost of smog, climate change, emissions, etc to ICE owners ;)
- sofixa 6y agoThey really should
- bdcravens 6y agoThey do, in the form of taxes on gasoline. (Whether the government uses that tax revenue to address those issues is another question)
- ericmay 6y agoAt least at the federal level the gas taxes haven't risen in about 25 years... [1] [1]https://www.npr.org/2018/10/05/654670146/its-been-25-years-since-the-federal-gas-tax-went-up https://www.npr.org/2018/10/05/654670146/its-been-25-years-s... I understand why they're not raising it, though.
- doggodaddo78 6y agoVehicle registration fees for NMC EVs.
- rightbyte 6y agoWhy would 0c water be better in a meaningful way compared to 25c? Most cooling is from the steam phase change, right?
- rad_gruchalski 6y agoMaybe because it's 25C cooler than 25C water. Takes more energy to convert to steam. I guess.
- rightbyte 6y agoMy point is: Water 1c change is 4184 J/kg (1 kcal) Water to steam 2260 kJ/kg. So 25c cooler is 25 * 4.184 kJ extra, which is: 25 * 4184 / (2260k + 75 * 4184) = 104600 / 2573800 => 4% more energy than 25c to steam. And then you need a refrigerator to cool tons of water, instead of just carrying more water.
- mrep 6y agoNo wonder my steam shower is the most power hungry appliance in my place at 10 KW.
- rad_gruchalski 6y agoHah, hacker news...
- doggodaddo78 6y agoIce, dry ice, liquid nitrogen would be even better. It's not about water putting out the fire directly, it's getting the Li-ion battery below thermal runaway to stop the self-immolation.