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So this has got me thinking, tell me where this breaks down: If we take a heatpump and extract heat from the air or better, a river or the ocean, could these tu
by dtx1 3y ago
So this has got me thinking, tell me where this breaks down: If we take a heatpump and extract heat from the air or better, a river or the ocean, could these turbines be used to generate enough electricity from the extracted heat to be overall energy positive?
- lazide 3y agoYou’d need a corresponding reservoir of ‘cold’ with a big enough temp delta to make it economic. So, no.
- dtx1 3y agoBut a river would be both, extract the heat with a heatpump, cool down the exhaust using that river. Assuming you can pump more heat and extract more electricity from that heat than it cost to run the heatpump, you'd have a positive energy extraction.
- lazide 3y agoDo the math, and you’ll find the delta is uneconomic. Unless the air is 600C or something. In which case, have you checked to make sure you’re not on fire?
- deleted 3y ago[deleted]