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> Also my gaming PC in the winter. It feels like free compute given I’m heating anyways. Totally. If it's cold and you have an idle rig, you might as well use it to run a crypto miner before reaching for an actual heater.
Actual heating systems can be better than 100% efficient, while crypto mining or cinebench or whatever is <100%
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Actual heating systems can be better than 100% efficient, while crypto mining or cinebench or whatever is <100%
what do you mean?
They kinda work like a reverse refrigerator. A fridge takes heat out from the inside and moves it to the outside. A heat pump does the opposite.
It's astounding just how quiet EV's are; they can make you hyperaware of other noises (hence why this page exists).
I hope legislation gets enacted that will make it illegal to blast artificial "exhaust" noises from EVs. Not like cops will actually enforce it, but one can still dream...
This one is pretty cool and definitely surprised me. > Motor Humming or Whirring when Navigating to a Supercharger … > In some circumstances (such as cold weather), it is normal for the motor(s) and components to make noise, such as humming or whirring as it generates heat to warm the Battery. Super cool that the motors can be used for things other than moving the vehicle. It reminds me of how ESCs for RC vehicles us…
I have a relatively analogue car (Subaru BRZ) and there are times when you shut it off on a warm day and then randomly about ten mins later a radiator fan kicks on. I guess it's to help cool down but I don't remember exactly what the manual says. Basically it's cool how cars do things largely on their own sometimes to stay within certain parameters.
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A gasoline based ICE is so incredibly inefficient it needs to shed heat or it would melt down. It makes more heat than that it makes motive power (the thing it is designed to do...). A 50 KW engine makes 200 KW(!!) of heat (at full throttle). Most of that heat energy exits the system through the exhaust gases but there is plenty that gets stuck in the body of the engine and you need to remove it from there somehow be…
> It makes more heat than that it makes motive power (the thing it is designed to do...). Sure.. but try running that same engine when it gets too cold, which is why "block heaters" exist and get used in certain parts of the world. The operating temperature of the engine _is_ part of the design criteria.
"Creaking From the Tires or Brakes" I don't have a Tesla, but I hear this sound in my own car, especially now that it's winter. I began hearing this after my recent car service that involved a ~real~ rear brakes replacement. When I took my car to the service guy, it was afternoon and I was no longer able to reproduce the noise. This was driving me crazy until now! I now know it's nothing to worry about.
Before I investigated pads and discs, my first port of call would have been any ball joints. I don’t know the typical Tesla suspension make up but if there’s any bottom ball joint at the control arm / wheel carrier interface or tie-rod end, then that would be first.
Either way, definitely sounded like a failing ball joint to me. I’d want to visually inspect the dust boots for cracks, use a pick to check it’s still fully packed with healthy grease, then with wheels in the air, manipulate the wheel - hands at 12 o clock and 6 o clock, rock back and forth (testing bottom ball joint). Hands at 3 and 9 o clock (testing tie rod end).
Of course brake pads on discs can also fit the profile of “metal rubbing against metal with friction” but in that particular recording… unless the audio has been messed with (which from listening to some other clips I think they have applied some hi and lo cut with roll off in post)
“Cabin Noise during Acceleration with Ludicrous Enabled” was by far the most interesting
And also incredibly accurate. I know Teslas are commonplace now, but the raw acceleration of an old Model S was seriously something to behold.
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Actual heating systems can be better than 100% efficient, while crypto mining or cinebench or whatever is <100%
How can anything be <100% if producing heat is the goal? Where would the rest of the energy be going?
https://en.wikipedia.org/wiki/Heat_pump#Principle_of_operati...