logo

Power Generation USING A SUPERCRITICAL CO2 GEOTHERMAL SIPHON

PDF Publication Title:

Power Generation USING A SUPERCRITICAL CO2 GEOTHERMAL SIPHON ( power-generation-using-supercritical-co2-geothermal-siphon )

Next Page View | Return to Search List

Text from PDF Page: 001

PROCEEDINGS, Thirty-Fourth Workshop on Geothermal Reservoir Engineering Stanford University, Stanford, California, February 9-11, 2009 SGP-TR-187 ELECTRICITY GENERATION USING A SUPERCRITICAL CO2 GEOTHERMAL SIPHON Edited by Hal Gurgenci Queensland Geothermal Energy Centre of Excellence School of Engineering, The University of Queensland. h.gurgenci@uq.edu.au ABSTRACT This is a Report produced after a small Workshop organised by the Queensland Geothermal Energy Centre of Excellence in Brisbane on 25-26 August 2008. The first day of the Workshop concentrated on the feasibility of supercritical CO2 geothermal siphon as a new way of exploiting hot rock geothermal resources to generate electricity. The second day of the Workshop discussed the future research strategies for the Queensland Geothermal Energy Centre and other national and overseas research groups in the broader geothermal energy context – the main research thrust in the near future for the Centre as well as the others who participated in the Workshop. This document offers a summary of the discussions during the first day. It is organised in six Sections, corresponding to the six Focus groups in the W orkshop. This document offers a summary of the discussions during the first day. It is organised in six Sections, corresponding to the six Focus groups in the W orkshop. As a background to the following sections, it should be noted that a supercritical CO2 siphon (Brown, 2000; Pruess, 2006; Gurgenci et al, 2008) offers a series of potential advantages that may expedite commercial exploitation of some geothermal resources. There are however significant issues that need to be resolved. A list of such issues would include but not be limited to the geochemistry of supercritical CO2; dealing with reservoir water; long- term effects in terms of reservoir connectivity; the source for CO2 to activate the reservoir and long-term retention of CO2; and design and optimization of turbines and air-cooled heat exchanger systems to work with the supercritical CO2. This document is a summary of the discussions as captured by the Workshop organisers during the Workshop and listed under six Focus Group headings. Although all care has been taken to ensure accuracy and adequacy, the following does not necessarily constitute a true representation of the views of the Workshop participants. FOCUS GROUP A – GENERAL FEASIBILITY Rapporteur: Jeff Tester While this is definitely an exciting concept and has great potential, a careful approach is needed. The following issues have been identified by this focus group: o What is the need for a demonstration now? Can we advance our knowledge without rushing to a field demonstration? - This idea is far-reaching and outside the boundaries of the Engineered Geothermal System (EGS). Therefore, it may take time to identify and resolve all relevant issues. - Present EGS thinking is focused on water and yet needs to be proven. No EGS system has worked for a convincing length of time. There is a danger that vigorous pursuit of the CO2 concept could defocus water-based EGS efforts. - Some fundamental research may be needed before a field demonstration is possible. - It is important that the objectives and the procedures for a field demonstration are planned carefully? Failure is costly and haste and early failure may kill the topic unnecessarily. o Each reservoir is different. If this idea is to make an impact, it should be part of a national assessment of possible sites. In other words, given diverse reservoir geology, can we make a national assessment of the supercritical CO2 geothermal siphon? o What are the benefits for Queensland on the international stage for pursuing this approach? The role for international collaboration also needs to be identified. o Importance of key infrastructure - Access to CO2 at an acceptable cost. - Proximity to the electricity grid. - Access to cooling water.

PDF Image | Power Generation USING A SUPERCRITICAL CO2 GEOTHERMAL SIPHON

power-generation-using-supercritical-co2-geothermal-siphon-001

PDF Search Title:

Power Generation USING A SUPERCRITICAL CO2 GEOTHERMAL SIPHON

Original File Name Searched:

gurgenci.pdf

DIY 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