undefined | Better HN

0 pointspjc5010y ago0 comments

Heat harvesting is tricky because it depends on temperature difference, so you need to keep the hot side and the cold side sufficiently far apart.

0 comments

And you need some kind of heat engine to extract useful work from the difference. These typically have a significant size/mass associated with them.

I think solar cells are the way to go for now, though vibration harvesting can work for some applications.

pharke10y ago

j / k navigate · click thread line to collapse

0 pointspjc5010y ago0 comments

Heat harvesting is tricky because it depends on temperature difference, so you need to keep the hot side and the cold side sufficiently far apart.

And you need some kind of heat engine to extract useful work from the difference. These typically have a significant size/mass associated with them.

I think solar cells are the way to go for now, though vibration harvesting can work for some applications.

pharke10y ago

j / k navigate · click thread line to collapse