When I worked for a water generating start-up company I learned all the different ways one can harvest water from our atmosphere.
One way is to find the sweet spot (dewpoint) temperature differential to create condensate. This involves adding heat to bake out trapped moisture absorbed overnight from dew collection. Once you expose it to the ambient air temps, you can harvest…WATER!
The trick in baking out the water is to find the most efficient heating process. If you use solar thermal panels, it requires a footprint of yard/roof space. If you plug it in, your electricity bill goes up. If you use a heat pump it also requires electricity, for example depending on the temperature is the kilowatts needed can average per one commenter on a heat pump chat site…
60F, 2.86 kw
50F, 2.75 kw
40F, 2.64 kw
30F, 2.6 kw
20F, 2.53 kw
10F, 2.41 kw
0F, 2.30 kw
-10F, 2.19 kw
But a pilot project with SMU and the frackers found you could drill for Deep Direct Use (DDU) geothermal resources to reuse produced oil field water in Texas and get a renewable source of heat/energy. For now the frackers WASTE that (brine wastewater) heat.
Anytime we can thwart fossil fuel use for a more sustainable or off-grid solution to heat and cool our homes and/or even make our own water …it will be another nail in the fossil fuels’ coffin….better them than us “coughing” our lungs out with dirty energy.
As usual here is a love letter I share with my readers…..
From: kim feil <firstname.lastname@example.org>
To: “email@example.com” <firstname.lastname@example.org>
Cc: “email@example.com” <firstname.lastname@example.org>; “email@example.com” <firstname.lastname@example.org>; SMU Geothermal Lab <email@example.com>; “firstname.lastname@example.org” <email@example.com>
Sent: Saturday, July 22, 2017 3:29 PM
Subject: Dandelion Geothermal-small scale but what about DDU mid scale?
“Within the area of study, different temperature characteristics were observed by region. South Texas has the highest measured temperatures (in excess of 300˚F) at depths of 10,000 to 12,000 feet. The Gulf Coast geopressured areas have the most accessible energy potential, because of the large fluid volumes, entrained gas, and artesian flow. East Texas, while dominated by shallower drilling (typically less than 10,000 feet) and waterflood fields, possesses a crust with high natural radioactivity in the granites (such as is associated with the Sabine Uplift). This is indicates the elevated temperatures needed for geothermal energy can be expected at depth. The iv drilling in North Central Texas is currently predominantly in the Barnett shale formation, averaging 7,000 to 8,000 feet. Beneath the Barnett shale formation, lays the Ellenberger limestone, which has temperatures in the 200 to 250˚F range and can produce water volumes in the 20,000 to 50,000 barrels per day range, based on injection well capacity. In short, all of the areas studied, while yielding different results, showed remarkable promise for geothermal energy potential”.
|“Using tapped out oil and gas wells could greatly reduce the costs involved in exploration and drilling even though retrieving geothermal resources to generate electricity is a significantly different process from that of oil and gas drilling and would involve redesign and re-drilling.|
From: Seeking Alpha <firstname.lastname@example.org>
Sent: Friday, July 21, 2017 6:05 PM
Subject: UNG,UNL: Energy Recap: Revisiting Geothermal Energy