Dandelion + Deep Direct Use = Both can make WATER

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…..

—– Forwarded Message —–
From: kim feil <kimfeil@sbcglobal.net>
To: “katie@dandelion.co” <katie@dandelion.co>
Cc: “sravindran@harcresearch.org” <sravindran@harcresearch.org>; “mrichard@smu.edu” <mrichard@smu.edu>; SMU Geothermal Lab <mrichard@mail.smu.edu>; “catherine@smu.edu” <catherine@smu.edu>
Sent: Saturday, July 22, 2017 3:29 PM
Subject: Dandelion Geothermal-small scale but what about DDU mid scale?
Hi, my name is Kim Feil and I have an interest in utilizing heat waste as it relates to Urban Drilling (a subject I have been blogging about for many years now). There was a pilot project to repurpose/co-produce? an oil well into a geothermal well in Texas.
Dandelion’s special drill design efficiencies with smaller holes are small in scale in comparison to mid scale sized low temperature geothermal Deep Direct-Use (DDU) geothermal technologies. These wells were already drilled initially to mine for oil and gas.
Here in Texas we have so many aging URBAN drilled natural gas pad sites. I believe it is (economically?) feasible to re-enter these wells after their (quick) fossil fuel production declines and repurpose them (or exist as geothermal c-production with Oil & Gas) to utilize their waste heat (hot brine) for absorption chillers or to increase humidity to boost production for desiccant based water generators.
DDU is the midrange of geothermal resources by using low temperatures from ancient brine waters disturbed after drilling for oil and gas. DDU resources are being studied by the NREL to tap geothermal resources to drive absorption chillers for turbine inlet cooling at natural gas fueled power plants, https://www.nrel.gov/news/program/2017/nrel-geothermal-deep-direct-use-east-texas.html “It (DDU) harnesses geothermal resources that are not hot enough to produce electricity, but that are still useful for large-scale projects…….During hot afternoons these power plants lose power and efficiency. Precooling the air drawn into the turbine’s compressor section, in a process known as turbine inlet cooling, boosts performance. Normally, cooling this intake air consumes some of the power produced by the plant. Tapping geothermal resources to drive absorption chillers could provide the cooling instead, and the power plants in the Sabine Uplift region could save money and reduce their emissions.”
I am excited that Dandelion is competing with fossil fuels in New York especially under Cuomo’s support and look forward to seeing more geothermal innovations elsewhere displace dirty fossil fuel consumption. I am hoping to find a new purpose for existing gas and oil wells drilled in our urban neighborhoods as seen here in the Dallas/Ft Worth area of the Barnett Shale and encourage Dandelion to incorporate water generation as yet another use for their new drill bit in addition to heating and cooling homes.
Sincerely, Kim Feil
817 564-2577
More on DDU, https://energy.gov/eere/geothermal/low-temperature-and-coproducedLow-temperature geothermal energy is defined as heat obtained from the geothermal fluid in the ground at temperatures of 300°F (150°C) or less. These resources are typically used in direct-use applications, such as district heating, greenhouses, fisheries, mineral recovery, and industrial process heating. However, some low-temperature resources can be harnessed to generate electricity using binary cycle electricity generating technology.
“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.
—– Forwarded Message —–
From: Seeking Alpha <account@seekingalpha.com>
To: kimfeil@sbcglobal.net
Sent: Friday, July 21, 2017 6:05 PM
Subject: UNG,UNL: Energy Recap: Revisiting Geothermal Energy







About Kim Triolo Feil

Since TX Statute 253.005 forbids drilling in heavily settled municipalities, I unsuccessfully ran for City Council Seat to try to enforce this. Since Urban Drilling, our drinking water has almost tripled for TTHM's. Before moving to Arlington in 1990, I lived in Norco’s “cancer alley”, a refinery town. It was only after Urban Drilling in Arlington did I start having health effects. After our drill site was established closest to my home, the chronic nosebleeds started. I know there are more canaries here in Arlington having reactions to our industrialized airshed (we have 55-60 padsites of gas wells). Come forward and report to me those having health issues especially if you live to the north/northwest of a drill site so I can map your health effects on this blog. My youtube account is KimFeilGood. FAIR USE NOTICE: THIS SITE MAY CONTAIN COPYRIGHTED MATERIAL THE USE OF WHICH HAS NOT ALWAYS BEEN SPECIFICALLY AUTHORIZED BY THE COPYRIGHT OWNER. MATERIAL FROM DIVERSE AND SOMETIMES TEMPORARY SOURCES IS BEING MADE AVAILABLE IN A PERMANENT UNIFIED MANNER, AS PART OF AN EFFORT TO ADVANCE UNDERSTANDING OF THE SOCIAL JUSTICE ISSUES ASSOCIATED WITH EMINENT DOMAIN AND THE PRIVATIZATION OF PUBLIC INFRASTRUCTURE (AMONG OTHER THINGS). IT IS BELIEVED THAT THIS IS A 'FAIR USE' OF THE INFORMATION AS ALLOWED UNDER SECTION 107 OF THE US COPYRIGHT LAW. IN ACCORDANCE WITH TITLE 17 USC SECTION 107, THE SITE IS MAINTAINED WITHOUT PROFIT FOR THOSE WHO ACCESS IT FOR RESEARCH AND EDUCATIONAL PURPOSES. FOR MORE INFORMATION, SEE: HTTP://WWW.LAW.CORNELL.EDU/ TO USE MATERIAL REPRODUCED ON THIS SITE FOR PURPOSES THAT GO BEYOND 'FAIR USE', PERMISSION IS REQUIRED FROM THE COPYRIGHT OWNER INDICATED WITH A NAME AND INTERNET LINK AT THE END OF EACH ITEM. (NOTE: THE TEXT OF THIS NOTICE WAS ALSO LIFTED FROM CORRIDORNEWS.BLOGSPOT.COM)
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