3 ms·
Keeping things cool at that depth also seems like a challenge.
by yxhuvud 2y ago
Keeping things cool at that depth also seems like a challenge.
- shagie 2y agoWhich would then suggest the alternate approach of just push down cold water and get back hot water without any nuclear reactor at the bottom of the hole. We're not talking hot hot everywhere, but possibly still useful. https://www.researchgate.net/figure/The-average-temperature-gradient-for-planet-Earth-is-20-per-kilometre-In-many-areas_fig2_352197150 https://www.researchgate.net/figure/The-average-temperature-... > The average temperature gradient for planet Earth is 20 °C per kilometre. In many areas around the world the gradient is higher, and the temperature increases at a faster rate with depth below the ground. With a temperature gradient of between 50 and 100 °C geothermal resources are more readily accessible. Above 20 °C geothermal waters can be used for direct uses like greenhouses, aquaculture and district heating applying heat pumps. Above 75 °C the water is hot enough to be used for electricity generation using binary cycle technology. Above 160 °C flash steam generation can be used to produce clean, renewable electricity. Source: Geothermal Resources Council