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Cake day: July 24th, 2023

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  • I don’t care what machine it is in not using pleasantries to tell it what to do until it gains sentience. Pleasantries are for people.

    Thus does become an issue for me when i use a call a support line and the actual person just happens to talk like a recorded menu.


  • No. The heat of combustion increases the gas temperature. But this temperature increase is relative to the mass of the gas. The heat is relative to fuel/oxygen mass combusted. (Combustion energy + Ideal gas law)

    Add mass without adding combustion, you get lower pressure and temperature out. So you get less boost from the turbo and make more work for the compression cycle.

    The major point of the turbo is to use wasted heat to add more oxygen by packing more air in. So it’s a bit of an odd question to answer. The point is there’s a lot of energy wasted in a naturally aspirated engine’s exhaust. Turbos mostly use that wasted energy, and not power from the crank.

    Oh yeah, the turbo is going to have an efficiency ratio for converting exhaust pressure into boost. So that added backpressure on the exhaust is going to be offset in the intake stroke by that ratio. Not important to the point, hat a tidbit. These things are so complicated lol.



  • The exhaust gases are at a high pressure after combustion due to combustion heat. The turbo does indeed increase exhaust pressure, and therefore extracts some work from the crank but it’s extracting significantly more from the high pressure of the expanded hot gas. It’s not “free” because it’s energy that is usually just wasted in a naturally aspirated engine. There are many examples of engine configurations where a turbo is used to boost efficiency by reducing displacement.

    There were systems on old aircraft engines which used exhaust power recovery turbines geared directly to the crank. Those wouldn’t physically function under your concept.

    The increase in manifold pressure doesn’t just increase oxygen in the cylinder. It also increases the manifold pressure, or the total mass of gases. The increase of oxygen does allow for more fuel and total energy in the ignition event but the extra inert gas also expands when heated. So both play a factor in increasing mean effective pressure, and therefore energy output per cycle (power).

    Edit: im tired… Bad wording, adding inert gas to increase intake mass doesn’t help.








  • untorquer@lemmy.worldtoMicroblog Memes@lemmy.worlddeepseek
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    18 days ago

    Fair. All of the big ones have some level of filters. In the US it’s not regulated so the censorship/filtering is determined by the company providing the service. Those companies have business relations in both countries. I’m unsure the extent or how much any Chinese company might have with American business. In any case, both have the capability to collect your data and I’m of the opinion they do despite any claims of privacy. Furthermore, there’s no tech company as large as these players without government funding via contracts.

    Using AI is at a bare minimum as insecure as using Google/Bing search pre-AI era. Again my opinion is that it’s dangerously less so, whether Chinese or American.

    To that extent i personally can’t imagine why China having your data is less secure than the US unless you’re in a position of political importance to the US (government office/job/contractor) or running a large business with the capability to influence the US government through lobbying/media/etc…

    FWIW I personally avoid AI in every way i know how to.

    Just so i’m not called a tankie, I don’t trust the CCP for anything other than cheap exploitative labor.