living could use more inventions like this.
A low-cost water desalination system developed by New Mexico State
University engineers can convert saltwater to pure drinking water on a
round-the-clock basis and its energy needs are so low it can
be powered by the waste heat of an air conditioning system.
A prototype built on the NMSU campus in Las Cruces can produce enough
pure water continuously to supply a four-person household, said Nirmala
Khandan, an environmental engineering professor in NMSU’s Department of
“When you air condition a house, you are pumping the heat outside the
house, and the heat is wasted into the atmosphere,” he said. “We want
to capture that heat and use it to power this desalination system.”…
It turns out to be very simple. You could probably build one
yourself. I suspect it will take some refinement to figure
out the most efficient way to run the system, but that won’t take long.