Steam and water is the current heat transfer mediums across the sector.
Hard to distribute heat ventiliation and air cooling. HVAC. Water is best transfer medium in these nets. We only use water in distribution grids.
Other medium than water that is cheaper, or more efficient, safer.
OEMS, district heating sector.
Would be interested in PCMS (phase changing materials) that doesn’t corroed the pibes and machines.
PCMs are expensive, heavy and often unproven. However if the distribution system can remain the same, we would set up a test facility.