PDF Publication Title:
Text from PDF Page: 009
Enhanced Geothermal Systems EGS and Carbon Capture Visit the GTO website at geothermal.energy.gov for more information on EGS, or contact geothermal@ ee.doe.gov. Mapping the Future of EGS CO as a potential geothermal working fluid. Illustration courtesy of Dr. Martin Saar and Dr. Jimmy 2 While up to 90% of the geothermal power resource in the U.S. is thought to reside in EGS, hurdles to commercial development still remain. To that end, the GTO created an EGS Technical Roadmap that addresses the technology evolution required to facilitate large- scale EGS deployment. The Roadmap, published at the 2013 Stanford Geothermal Workshop in February, identifies the critical technology needs that will ultimately facilitate commercial success for EGS, and outlines opportunities for advancing these technologies on five- to 20-year timescales. Informed by community input, the Roadmap also traces technical research directions related to EGS as they have evolved through past and present practices. The roadmap is intended not only to guide priorities for GTO investment, but also to document and communicate the EGS Program R&D strategy to geothermal stakeholders, members of other subsurface science and energy sectors, and policymakers. GTO invites you to download the roadmap using the Tools & Resources page in this report and email your comments to our office. CO2 as a Geofluid Shows Promise (At top, left) Conventional geothermal power plant construction; (right) flow testing; (below) GTO Project Officer Greg Stillman makes the rounds at the poster session of the Geothermal Resources Council annual meeting; stakeholders at the annual industry gathering (bottom). The subsequent phase, which will kick off in early 2014 constitutes a first- of-its-kind pilot scale CO circulation Geothermal Carbon Capture Goes Commercial With early research funding from the Geothermal Technologies Office and the National Science Foundation, researchers are engineering a new kind of geothermal technology that will lock away unwanted carbon dioxide (CO2) underground while safely using it to generate geothermal electricity—as much as double the output from conventional geothermal, according to some models. Already at work in the oil & gas sector, CO2 injection is being adapted for geothermal use through research led by Tom Buscheck, earth scientist at Lawrence Livermore National Laboratory (LLNL). If proven successful, this approach could move geothermal energy extraction far beyond the small handful of western states that take advantage of naturally occurring hydrothermal systems today. Heat Mining Company, LLC, a spinoff of the University of Minnesota research, expects to deploy an operational model by 2016. The new power plant design replaces some of the geothermally heated water by injecting carbon dioxide and nitrogen into concentric, horizontal wells. Co-principal investigator Jeffrey Bielicki, assistant professor of energy policy in the Department of Civil, Environmental, and Geodetic Engineering at Ohio State University, claims the technology can be twice as efficient as tapping geothermal reservoirs alone. Simulations also revealed that the new design could potentially sequester as much as 15 million tons of CO2 per year, roughly equivalent to the emissions of three coal-fired power plants annually. 17 GTO investments at LLNL and LBNL and the University of Minnesota have yielded progress in harnessing Randolph, University of Minnesota, 2013. In 2013, GTO conducted a downselect review of projects funded under a 2011 funding opportunity announcement (FOA), focused on Innovation in Subsurface Heat Recovery Methods. The objectives of the FOA were to identify such innovations that could reduce financial risk and reduce potential environmental risks associated with EGS, such as water consumption induced seismicity, and subsidence. An exciting outcome of the down- select review is the continuation of an innovative project underway at Lawrence Berkeley National Laboratory (LBNL), focused on supercritical CO2 applications for geothermal energy. The LBNL team utilized a coupled wellbore and reservoir model to analyze the feasibility of super- critical CO2 (scCO2) geothermal and optimize designs of turbo expansion cycles using scCO2 as a geofluid. The LBNL team identified environmental risks and potential induced seismicity hazards through an initial forecast of financial risk and techno-economic modeling—an additional requirement in Phase 1—and also provided an estimation of the potential resource for geothermal reservoirs conducive to CO use in the U.S. 2 2 testing—the parameters of testing were defined by modeling completed this year. Decades of research indicate that a thermosiphon will naturally develop when CO is circulated between an 2 injection and production well because of CO2’s compressibility and expansivity. This natural tendency to circulate has been theoretically shown to result in lower parasitic loads for heat mining than if water was used as the working fluid, but has never been demonstrated at field scale for geothermal energy applications. This natural thermosiphoning circulation test will take place at the Cranfield location in Mississippi and will ultimately validate the long-theorized benefits of the thermosiphon effect for geothermal energy. Furthermore, this pilot test will allow the analysis of critical thermophysical parameters that will aid in the design of the surface equipment required to optimize electricity generation. GEOThERmAl TEChNOlOGIES OffICE 16 2013 ANNuAl REpORTPDF Image | Geothermal Technologies Office Annual Report
PDF Search Title:
Geothermal Technologies Office Annual ReportOriginal File Name Searched:
AR_2013_3.pdfDIY PDF Search: Google It | Yahoo | Bing
NFT (Non Fungible Token): Buy our tech, design, development or system NFT and become part of our tech NFT network... More Info
IT XR Project Redstone NFT Available for Sale: NFT for high tech turbine design with one part 3D printed counter-rotating energy turbine. Be part of the future with this NFT. Can be bought and sold but only one design NFT exists. Royalties go to the developer (Infinity) to keep enhancing design and applications... More Info
Infinity Turbine IT XR Project Redstone Design: NFT for sale... NFT for high tech turbine design with one part 3D printed counter-rotating energy turbine. Includes all rights to this turbine design, including license for Fluid Handling Block I and II for the turbine assembly and housing. The NFT includes the blueprints (cad/cam), revenue streams, and all future development of the IT XR Project Redstone... More Info
Infinity Turbine ROT Radial Outflow Turbine 24 Design and Worldwide Rights: NFT for sale... NFT for the ROT 24 energy turbine. Be part of the future with this NFT. This design can be bought and sold but only one design NFT exists. You may manufacture the unit, or get the revenues from its sale from Infinity Turbine. Royalties go to the developer (Infinity) to keep enhancing design and applications... More Info
Infinity Supercritical CO2 10 Liter Extractor Design and Worldwide Rights: The Infinity Supercritical 10L CO2 extractor is for botanical oil extraction, which is rich in terpenes and can produce shelf ready full spectrum oil. With over 5 years of development, this industry leader mature extractor machine has been sold since 2015 and is part of many profitable businesses. The process can also be used for electrowinning, e-waste recycling, and lithium battery recycling, gold mining electronic wastes, precious metals. CO2 can also be used in a reverse fuel cell with nafion to make a gas-to-liquids fuel, such as methanol, ethanol and butanol or ethylene. Supercritical CO2 has also been used for treating nafion to make it more effective catalyst. This NFT is for the purchase of worldwide rights which includes the design. More Info
NFT (Non Fungible Token): Buy our tech, design, development or system NFT and become part of our tech NFT network... More Info
Infinity Turbine Products: Special for this month, any plans are $10,000 for complete Cad/Cam blueprints. License is for one build. Try before you buy a production license. May pay by Bitcoin or other Crypto. Products Page... More Info
| CONTACT TEL: 608-238-6001 Email: greg@infinityturbine.com | RSS | AMP |