Yes, this is a good emergency method. For humans too. Our greenhouse went over 55°C on several occasions in early spring. It went higher for sure but the thermometer doesn't want to measure that high. Since then I installed a shading system, a simple roll-up made from a rigid tube and some white light fabric. It is fixed on the outside, keeps the energy outside of the greenhouse and shades the sun rays. It is still a manual system, but still makes a huge difference.
140F but that was with the greenhouse sealed tight in full sun to see hot i could get it to go. The SHCS took a shade under 12 minutes to bring it down to 68F. Running the overhead misting makes it much more effective but i`ve never had need to run both at the same time.
Yeah evaporation is endothermic. Just use a swamp cooler, same idea, but with either you have the same constraint that it will only work when you have enough capacity in the air for more water, as you are raising the dew point, so you can only raise it to the air temperature.
The geothermal system should dehumidify the air 24/7. When one end of the air tube is high, the other one at the lowest point. NO ventilators. The system will work by itself and create a stable self-regulating microclimate.
Well im doomed lol. 70-80% humidity in summer, average temp around 10° but when it gets over 25° and we loose the wind chill it feels crazy hot. Invercargill, NZ
Direct Evaporative Cooling only works in low humidity climates. Consider using Shade Cloth , Shade Paint , Drop-Down Roll-Up Side Walls , and Forced Air Ventilation. Pay Attention To Your Plants increased watering at the roots is required during high temperature periods. Regards. ...
Misting works for me in north Florida. The water comes out of the ground at 72 degrees. Most summer days are over 90. Black plastic nursery pots easily hit 140 in the sun. Mid day humidity rarely exceeds 60%. In the rare times I use an impact sprinkler at mid day I can see water evaporating off the spray. Evaporative cooling doesn't work well, but it works. It definitely wouldn't all evaporate away and in the case of patio cooling, it would leave you wet, but it would be a choice of being soaking wet with well water or soaking wet with sweat.
Great content. Thanks for sharing. I do worry about misting on the leaves because the droplets may act like magnifying glass which may scorch the leaves.
Howdy, what is your standing with the amount of volcanic activities and the eruptions that has a high potential of cooling the normalcy of the temps? Which makes growing food much more difficult... To which, would a conductive material be usable as a 'static' (volcanic particles) collector... - giant nets attached to metal rod/pole, high up in the sky... collecting both electrical current to help with farming and changing the magnetic ranges around the general area... Imagine if you could stop or generate rain/clouds... with non-toxic ingredients... Lol, or how about the nets are like, gills of a fish... Purifying the air and collecting many different compounds and electricity... Cheers!
Interesting i don't grow in the green house during the summer time i live on a peninsula very high humidity over 80% and in the mid to upper 90s but i do have a heat sink 858 gallons when its in the upper 90s the temp is in the mid 80s.
Question @simple tek how much tubing is needed to cool a 1500 sq ft house for full house heating cooling like do i need a rad in every room and large longer lines etc
Would you Include Fahrenheit in temps for all of us in the states that never got taught Celsius. For some reason everything we're taught is the opposite of the rest of the world. Than
