I'm with evaporating the water on the condenser coils outside. This is how cheap window units increase their efficiency, by splashing the condensed water onto the coils. Maybe erect a tarp/shield to keep direct sun from hitting the surface of the roof and walls. Add a window unit if you can find one, they perform better than you'd think because they aren't piping the cooled air through a hot attic. On Sat, Jan 26, 2019, 20:22 RussellMc On Sun, 27 Jan 2019 at 09:44, James Cameron wrote: > (The drains are of great interest to kangaroos, wallabies, birds, > wasps and bees. One is a favourite of the bees; they are lined up > side by side, taking turns, about twenty of them at a time, and > there's a flight path off into the forest.) > > Photos please !!!! > > I'd look at the possibility of using evaporative cooling in parallel to t= he > air conditioners. > If you can evaporate liquid water and then vent it outside you should get > net gain. > > fwiw Thermal energy storage in water is ~=3D 850 litre.degrees-C per kWh. > > If you are using solar power for the energy source then you can get a > useful % mo by cooling the panels below usual sorts of Tpanel. > A film of water running down the outer face works. > > You MAY be able to implement a crude very-large and useful Vuilleumier > machine or a Gifford-McMahon machines, using the house for the air spaces= .. > VM: move air between hot space and medium space. Pressure swings are used > to Stirling cycle pump a cool space. NO mechanical compression of air - > just air movement. > GMM: Cycle system pressure to nsuck heat into cooler and then drive it ou= t. > > Russell > > > > > > -- > http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive > View/change your membership options at > http://mailman.mit.edu/mailman/listinfo/piclist > --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .