3 ms·

I quote: >That is not what ‘power source’ means. You probably want to read up on some thermodynamics and definitions. I’m guessing you think that if you connec

I quote: >That is not what ‘power source’ means. You probably want to read up on some thermodynamics and definitions. I’m guessing you think that if you connect the heat pumps output to it’s input, you’ll have infinite energy? There is no answer in that whole comment to my question. However, you did answer it in the comment I am replying to: > you pumped the energy inside and concentrated it a bit. Yes! That's exactly right. But furthermore: > You didn't generate more energy than you had before. You did make existing energy more useful for you, comfort wise. This is exactly right, and it is also known as the first law of thermodynamics. [1]. There is no way to produce energy. Even with electrical generation from geothermal, we are moving energy and concentrating it a bit, as you say, just in different forms. [1] https://en.wikipedia.org/wiki/First_law_of_thermodynamics https://en.wikipedia.org/wiki/First_law_of_thermodynamics

lazide 1y ago
Haha, no. In geothermal, you aren’t concentrating shit. Rather the opposite. You’re just moving it down the entropic slope/dissipating it. And converting (lossily) the form (usually, unless you’re doing geothermal heat - even then you need a heat exchanger). And it all boils down to ‘within an enclosed system’. With heat pumps the scope is typically within a hundred meters of itself. With deep geothermal it’s 1+ mile underground and the surface. There is useful power between 1+ mile down and the surface. There isn’t 100 meters away and the surface - unless you’re sitting on top of a hot spring anyway.
- foobarian 1y ago
  > You’re just moving it down the entropic slope/dissipating it. Agree on this, however > In geothermal, you aren’t concentrating shit. This one is a matter of opinion depending on scope so I'll disagree. You are concentrating it where it's useful. But overall system entropy goes up.
  - lazide 1y ago
    In geothermal, Heat is moved from where it is concentrated (underground) to where it is less concentrated (atmosphere). There is no point I’m aware of in the process where something gets more hot than it started.
    - foobarian 1y ago
      Ground source heat pumps absolutely do concentrate heat. See e.g. https://edwardsroyalcomfort.com/how-warm-does-geothermal-heating-get/ https://edwardsroyalcomfort.com/how-warm-does-geothermal-hea..., typical ground temps are around 60F and system output is above 100F.

lazide 1y ago

Haha, no. In geothermal, you aren’t concentrating shit. Rather the opposite. You’re just moving it down the entropic slope/dissipating it. And converting (lossily) the form (usually, unless you’re doing geothermal heat - even then you need a heat exchanger). And it all boils down to ‘within an enclosed system’. With heat pumps the scope is typically within a hundred meters of itself. With deep geothermal it’s 1+ mile underground and the surface. There is useful power between 1+ mile down and the surface. There isn’t 100 meters away and the surface - unless you’re sitting on top of a hot spring anyway.

foobarian 1y ago
> You’re just moving it down the entropic slope/dissipating it. Agree on this, however > In geothermal, you aren’t concentrating shit. This one is a matter of opinion depending on scope so I'll disagree. You are concentrating it where it's useful. But overall system entropy goes up.
- lazide 1y ago
  In geothermal, Heat is moved from where it is concentrated (underground) to where it is less concentrated (atmosphere). There is no point I’m aware of in the process where something gets more hot than it started.
  - foobarian 1y ago
    Ground source heat pumps absolutely do concentrate heat. See e.g. https://edwardsroyalcomfort.com/how-warm-does-geothermal-heating-get/ https://edwardsroyalcomfort.com/how-warm-does-geothermal-hea..., typical ground temps are around 60F and system output is above 100F.