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by ExoticPearTree
6 hours ago
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> It's not about the energy being green or not, it's that independently of the energy source AC is a heat pump, so it pumps heat out into the air, which makes the air inside cooler, but hotter outside; and for that, green or not, it needs to put in energy to do the work, which results in _even more heat_. What? If things would have worked as you say, we would have solved global warming in no time. Just open the windows and blow the cold air out and keep the inverter inside. |
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They work _exactly_ as I say:
https://en.wikipedia.org/wiki/Heat_pump_and_refrigeration_cy...
https://en.wikipedia.org/wiki/Second_law_of_thermodynamics
> Just open the windows and blow the cold air out and keep the inverter inside
This "just" seems to hint that you don't seem to quite be grasping the concepts and scale at hand:
- Assuming perfect efficiency and unlimited free energy, where would you even put the heat from outside?
- Since energy is neither free nor unlimited, the energy needs would be enormous+
- Since it is not perfectly efficient and the energy needs are so high, the amount of wasted energy (which is heat) would be colossal, and only make the problem worse
+ The heat causing global warming comes not from human activity but from the sun, the anthropogenic effect at play is that this energy from the sun is captured by greenhouse effect.