Could we extract energy/heat from the mantle?
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If you would like to generate electricity from heat in a simple way that has no moving parts, this usually involves thermocouples.
Interplanetary satellites that fly toward planets such as Jupiter and Saturn are so far away from the sun that they cannot use solar panelsto generate electricity. These satellites use RTGs (radioisotope thermoelectric generators) to generate their power. An RTG uses radioactive material (like plutonium) to generate heat, and thermocouples convert the heat to electricity. RTGs have no moving parts, so they are reliable, and the radioactive material generates heat for many years.
Scullin says it's the same with these thermoelectric PowerCards. If you've got a large waste heat source, like the exhaust stack of a coal-burning power plant, then you string together a lot of PowerCards. But if you don't have much heat, you only use a few of them.
"Eventually, we'd like to have thermoelectrics on the human body, and in buildings and in all sorts of other locations," Scullin says.
A new alloy with unique properties can convert heat directly into electricity, according to researchers at the University of Minnesota. The alloy, a multiferroic composite of nickel, cobalt, manganese and tin, can be either non-magnetic and highly magnetic, depending on its temperature.
Hope this answer will help you!!
If you would like to generate electricity from heat in a simple way that has no moving parts, this usually involves thermocouples.
Interplanetary satellites that fly toward planets such as Jupiter and Saturn are so far away from the sun that they cannot use solar panelsto generate electricity. These satellites use RTGs (radioisotope thermoelectric generators) to generate their power. An RTG uses radioactive material (like plutonium) to generate heat, and thermocouples convert the heat to electricity. RTGs have no moving parts, so they are reliable, and the radioactive material generates heat for many years.
Scullin says it's the same with these thermoelectric PowerCards. If you've got a large waste heat source, like the exhaust stack of a coal-burning power plant, then you string together a lot of PowerCards. But if you don't have much heat, you only use a few of them.
"Eventually, we'd like to have thermoelectrics on the human body, and in buildings and in all sorts of other locations," Scullin says.
A new alloy with unique properties can convert heat directly into electricity, according to researchers at the University of Minnesota. The alloy, a multiferroic composite of nickel, cobalt, manganese and tin, can be either non-magnetic and highly magnetic, depending on its temperature.
Hope this answer will help you!!
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The impedence from the deep earth will be dominated by the vast distances to the deep.
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