Comment by 0x5345414e

So it’s a solid and it melts, absorbing heat, then it must turn back into a solid, releasing heat. I’m curious to see how they move the solid back to where it started to complete the cycle. Maybe the material doesn’t move at all, it’s on some kind of revolving assembly? It’s just that in modern refrigeration systems, the evaporator isn’t necessarily that close to the condenser, so with a solid I can see this being awkward in some situations.