Compressor heats up coolant, coolant exchanges heat with outside, cools down then evaporator cools it further, heat exchanges with cold loop then goes to be compressed again. It’s the same principle that freezers and ac use, with the phase changes of the coolant you force them to move thermal energy in the desired direction.
Depends on the type of cooling, but even the less efficient cooling systems will be using a tiny fraction of the battery output, like less than 1% for most. Passively cooled batteries are going to have problems for sure but even then I’m not convinced there would be enough heat transfer for long enough from a 70 degree road surface to actually be a serious problem. The road itself would be cooling and unless you’re just sitting over it for a long time it’s not likely to become a real problem. A somewhat pessimistic (for volume, not for actual capacity) estimate would be 300kg of battery mass for 100kwh. Assuming middle range lithium ion thermal capacity that’s about 300kj per degree k. So for maths convenience let’s assume the car is 10m^2 on the underside and that’s all in contact with the battery, going by the previous estimates (again, worst case for battery overhead purposes) and assuming the air is moving and already preheated to 70 degrees c it would take around 5 minutes to heat the whole battery to 70. Thanks for the maths problem though, was interesting to look into this stuff, I’ve made some big assumptions but it’s looking very unlikely you’re realistically going to have big issues with overheating unless you spend an inordinate time with an EV sitting over hot asphalt, I didn’t consider radiative heat transfer but I wouldn’t think that would make a huge difference given the albedo of asphalt also the ambient air would probably help cool more than I considered. It would be neat if someone with more knowledge on the equations has input though.
So how does having an open top and a larger vehicle for the same storage space make more sense? Not in trades just have a vague sense of 3 dimensional space and efficiency.
Pretty much any helicopter rotors droop a bit when stationary.
Yeah the effort and disruption was my main reason for holding off for so long, then I set up a dual boot on my desktop and laptop and honestly after spending a week away with just Linux laptop I didn’t have the patience for windows when I got back. So far there’s been some fiddling around but a lot of my games have worked fine. No idea about those games but protondb can give an idea.
Shit like this is exactly why I’m mostly free of windows now. Sure there’s some bits and pieces that I’m keeping just in case but I’m not regularly booting windows for anything now. It’s been about a month and besides some minor things it’s been nice.
The first one is definitely worth it. I’d wait to see how 2 turns out because there’s already a bunch of red flags.
I love and hate driving through mk, it’s predictable but I always lose track of which roundabout I’m on.
Yeah you definitely can’t set up an automated system to grab releases of cool shows and stuff then send it to a torrent client to download before being sorted into jellyfin libraries.
And Clare
I’ve been using darktable for about a month now, way better than the bank Photoshop raw editing I’ve been doing in the year or so since I started actual photography.
It’s the whole selfless selfishness thing. It helps every individual to help others because the world isn’t a zero-sum game, more healthy happy people means more resources notionally going towards helping everyone.
I think the common mistake is projecting our own thoughts onto a hypothetical. They try to put themselves in that situation, “if I had this much money I would do all these things” but the truth is that to be in that position there is a fundamental lack of humanity required and it’s not easy to just disregard that.
Oh I downloaded Zelda totk a week before it came out just so I could play it for 5 minutes on an emulator, so I totally get that. Still haven’t finished botw…
There’s some weird appearances of contemporary art too. Pretty sure Vincent van Gogh works appear in chapterhouse.
That’s still insanely cheap, went to get actual petrol for the first time in 3 years and it’s about £1.60/l in Scotland.
619 dollars for one oil? I’m guessing it’s 6.19/l (or maybe even gallon? Who knows with these) but wow these are awkward to read.
The whole goal of these algorithms is that you put an input in and the output it gives out is as close to the most likely to be correct answer as it can be, training is just repeating that process. We’re several years deep into these “most likely” results and sometimes they’re pretty close but usually it’s not quite there because the only guidance they get is from outside.
Yeah looks like I did miss that bit. Still going to recommend stuff though :P. I was definitely reading stuff not intended for kids while I was still in school though so I might have a skewed perspective.
Ofc but I made some big assumptions with regards to ambient temperature, battery mass and lack of functional cooling. 5 minutes is absolute worst case with 70 degree ambient air.