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Author : Mark Hamilton Uebel
Publisher :
ISBN 13 :
Total Pages : 148 pages
Book Rating : 4.:/5 (384 download)
Download or read book The Aqueous Geochemistry of Aquifer Thermal Energy Storage written by Mark Hamilton Uebel and published by . This book was released on 1992 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 116 pages
Book Rating : 4.:/5 (116 download)
Download or read book Geochemical Response to Thermal Energy Storage in the Columbia River Basalt Aquifer System Beneath the Portland Basin, Oregon written by and published by . This book was released on 2019 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt: Deep direct use thermal energy storage (TES) is a low carbon emission method of geothermal energy storage and supply for large-scale residential, commercial, and manufacturing heating and cooling. Though a promising technology, TES cycles may increase mineral dissolution and precipitation reactions, particularly at elevated temperatures. The ensuing mass transfer can form scale in heat exchange systems and alter aquifer porosity and permeability, processes that can reduce the operational efficiency of a TES system. Within the Portland Basin, the underutilized Columbia River Basalt Group (CRBG) confined aquifer system has the potential to support TES operations. The feasibility of using TES in the Portland Basin CRBG was evaluated from a hydrogeochemical perspective. Analysis of CRBG groundwaters in western Oregon revealed that CRBG groundwater chemistry is influenced by calcite precipitation and mixing with underlying saline waters. A series of batch reaction experiments quantified the changes in water chemistry resulting from increasing aquifer temperatures and revealed that water-rock reactions are surface controlled. Results also suggest Ca concentrations are primarily controlled by calcite precipitation and dissolution, while the concentrations of other major cations are controlled by a complex series of incongruent mineral reactions. The impact of TES operation on aquifer porosity and permeability will ultimately depend on the composition of groundwater in the target zone, and on the nature and extent of available reactive surfaces in contact with injected waters. Equilibrium and kinetic transport reaction models were used to constrain the impacts of heating on the aquifer and heat exchanger using a variety of initial groundwater compositions, mineral assemblages, reactive surface areas, temperatures, and flow rates. Modeling results suggest that calcite, siderite, and smectite clays are significant secondary mineral phases. Modeling the recycling of waters between two reservoirs maintained at 70°C and 40°C suggests porosity loss in both reservoirs, but that some porosity may be recovered in the 70°C reservoir over multiple cycles.
Author : Nederlandse Centrale Organisatie voor Toegepast-Natuurwetenschappelijk Onderzoek. Commissie voor Hydrologisch Onderzoek. Technical Meeting
Publisher : Tno Committee
ISBN 13 :
Total Pages : 156 pages
Book Rating : 4.:/5 (43 download)
Download or read book Hydrochemistry and Energy Storage in Aquifers written by Nederlandse Centrale Organisatie voor Toegepast-Natuurwetenschappelijk Onderzoek. Commissie voor Hydrologisch Onderzoek. Technical Meeting and published by Tno Committee. This book was released on 1990 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt: Earlier research has shown that major problems can occur in operating plants when the effects of periodic changes in chemical equilibria due to heating and cooling are not correctly taken into account. A better understanding of the important chemical processes has been obtained by chemical modelling both empirically and theoretically in the laboratoria and by computer experiments. Also the interrelationship with microbiological processes has been studied extensively. Clogging, scaling and corrosion processes can impair the system if no adequate techniques are used to avoid precipitation of various carbonates and oxides.
Download or read book Review of Simulation Techniques for Aquifer Thermal Energy Storage (ATES). written by and published by . This book was released on 1981 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The storage of thermal energy in aquifers has recently received considerable attention as a means to conserve and more efficiently use energy supplies. The analysis of aquifer thermal energy storage (ATES) systems will rely on the results from mathematical and geochemical models. Therefore, the state-of-the-art models relevant to ATES was reviewed and evaluated. These models describe important processes active in ATES including ground-water flow, heat transport (heat flow), solute transport (movement of contaminants), and geochemical reactions. In general, available models of the saturated ground-water environment are adequate to address most concerns associated with ATES; that is, design, operation, and environmental assessment. In those cases where models are not adequate, development should be preceded by efforts to identify significant physical phenomena and relate model parameters to measurable quantities. Model development can then proceed with the expectation of an adequate data base existing for the model's eventual use. Review of model applications to ATES shows that the major emphasis has been on generic sensitivity analysis and site characterization. Assuming that models are applied appropriately, the primary limitation on model calculations is the data base used to construct the model. Numerical transport models are limited by the uncertainty of subsurface data and the lack of long-term historical data for calibration. Geochemical models are limited by the lack of thermodynamic data for the temperature ranges applicable to ATES. Model applications undertaken with data collection activities on ATES sites should provide the most important contributions to the understanding and utilization of ATES. Therefore, the primary conclusion of this review is that model application to field sites in conjunction with data collection activities is essential to the development of this technology.
Author : J. C. Hooghart
Publisher :
ISBN 13 :
Total Pages : 122 pages
Book Rating : 4.:/5 (43 download)
Download or read book Geothermal Energy and Heat Storage in Aquifers written by J. C. Hooghart and published by . This book was released on 1988 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt: During this technical meeting the results of investigations on geothermal energy extraction and heat storage in the subsoil will be presented. The subjects discussed will include the geohydrological boundary conditions, geological, geochemical and environmental aspects, the test facility that is being established on TNO premises in Delft and the results of a geothermal test well in Asten.
Author : Wade H. Shafer
Publisher : Springer Science & Business Media
ISBN 13 : 1461524539
Total Pages : 391 pages
Book Rating : 4.4/5 (615 download)
Download or read book Masters Theses in the Pure and Applied Sciences written by Wade H. Shafer and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 391 pages. Available in PDF, EPUB and Kindle. Book excerpt: Masters Theses in the Pure and Applied Sciences was first conceived, published, and disseminated by the Center for Information and Numerical Data Analysis and Synthesis (CINDAS)* at Purdue University in 1957, starting its coverage of theses with the academic year 1955. Beginning with Volume 13, the printing and dis semination phases of the activity were transferred to University Microfilms/Xerox of Ann Arbor, Michigan, with the though that such an arrangement would be more beneficial to the academic and general scientific and technical community. After five years of this joint undertaking we had concluded that it was in the interest of all concerned if the printing and distribution of the volumes were handled by an international publishing house to assure improved service and broader dissemi nation. Hence, starting with Volume 18, Masters Theses in the Pure and Applied Sciences has been disseminated on a worldwide basis by Plenum Publishing Corporation of New York, and in the same year the coverage was broadened to include Canadian universities. All back issues can also be ordered from Plenum. We have reported in Volume 37 (thesis year 1992) a total of 12,549 thesis titles from 25 Canadian and 153 United States universities. We are sure that this broader base for these titles reported will greatly enhance the value of this impor tant annual reference work. While Volume 37 reports theses submitted in 1992, on occasion, certain uni versities do report theses submitted in previous years but not reported at the time.
Author : Keith Nicholson
Publisher : Springer Science & Business Media
ISBN 13 : 3642778445
Total Pages : 268 pages
Book Rating : 4.6/5 (427 download)
Download or read book Geothermal Fluids written by Keith Nicholson and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book introduces aqueous geochemistry applied to geothermal systems. It is specifically designed for readers first entering into the world of geothermal energy from a variety of scientific and engineering backgrounds, and consequently is not intended to be the last word on geothermal chemistry. Instead it is intended to provide readers with sufficient background knowledge to permit them to subsequently understand more complex texts and scientific papers on geothermal energy. The book is structured into two parts. The first explains how geothermal fluids and their associated chemistry evolve, and shows how the chemistry of these fluids can be used to, deduce information about the resource. The second part concentrates on survey techniques explaining how these should be performed and the procedures which need to be adopted to ensure reliable sampling and analytical data are obtained. A geothermal system requires a heat source and a fluid which transfers the heat towards the surface. The fluid could be molten rock (magma) or water. This book concentrates on the chemistry of the water, or hydrothermal, systems. Consequently, magma-energy systems are not considered. Hot-dry rock (HDR) systems are similarly outside the scope of this text, principally because they contain no indigenous fluid for study. Both magma-energy and HDR systems have potential as energy sources but await technological developments before they can be exploited commercially. Geothermal systems based on water, however, are proven energy resources which have been successfully developed throughout the world.
Author : Robert Dorchester Allen
Publisher :
ISBN 13 :
Total Pages : 466 pages
Book Rating : 4.:/5 (15 download)
Download or read book Relationship of Regional Water Quality to Aquifer Thermal Energy Storage written by Robert Dorchester Allen and published by . This book was released on 1983 with total page 466 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 962 pages
Book Rating : 4.3/5 (91 download)
Download or read book Selected Water Resources Abstracts written by and published by . This book was released on 1991 with total page 962 pages. Available in PDF, EPUB and Kindle. Book excerpt:
![Download H2O[underscore]TREAT Users' Manual PDF Online Free](https://books.google.com/books/content/images/frontcover/nE9GnQAACAAJ?fife=w200-h370)
Author :
Publisher :
ISBN 13 :
Total Pages : 30 pages
Book Rating : 4.:/5 (727 download)
Download or read book H2O[underscore]TREAT Users' Manual written by and published by . This book was released on 1993 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt: This manual addresses the use of a public-domain software package developed to aid engineers in the desip of water treatment systems for aquifer thermal energy storage (ATES). The software, H20[underscore]TREAT, which runs in the DOS or UNIX Environment, was developed by the Pacific Northwest Laboratory and targeted to engineers possessing limited or no experience in geochemistry. To do this, the software provides guidance on geochemical phenomena that can cause problems in ATES systems (i.e., the formation of scale in heat exchangers, clogging of wells, corrosion in piping and heat exchangers, and degradation of aquifer materials causing a reduction in permeability). Preventing such problems frequently requires the use of water treatment systems. Because individual water treatment methods vary in cost, effectiveness, environmental impact, corrosion potential, and acceptability to regulators, proper evaluation of treatment options is required to determine the feasibility of ATES systems. The software is available for DOS- and UNIX-based computers. It uses a recently revised geochemical model, MINTEQ, to calculate the saturation indices of selected carbonate, oxide, and hydroxide minerals based on water chemistry and temperature data provided by the user. The saturation index of a specific mineral defines the point at which that mineral is oversaturated and hence may precipitate at the specified temperature. Cost calculations are not performed by the software; however, treatment capacity requirements are provided. Treatments include Na and H ion exchanger, fluidized-bed heat exchanger or pellet reactors, and CO[sub 2] injection. The H2O[underscore]TREAT software also provides the user with warning of geochemical problems that must be addressed, such as Fe and Mn oxide precipitation, SiO[sub 2] precipitation at high temperatures, corrosion, and clay swelling and dispersion.
Author : Roberto Cioni
Publisher : Springer Nature
ISBN 13 : 3030543188
Total Pages : 426 pages
Book Rating : 4.0/5 (35 download)
Download or read book A Thermodynamic Approach to Water Geothermometry written by Roberto Cioni and published by Springer Nature. This book was released on 2020-08-11 with total page 426 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book explores water geothermometry, a highly relevant topic in the exploration and exploitation of geothermal energy. Presenting theoretical geothermometers and indicators of CO2 fugacity, it describes a rigorous new approach entirely based on thermodynamics. The book will appeal to geothermal geoscientists, especially those working in research institutions and companies around the globe. It is also of interest to students on advanced courses in applied geochemistry, water–rock interaction and other related areas.
Author : Geological Survey (U.S.)
Publisher :
ISBN 13 :
Total Pages : 650 pages
Book Rating : 4.3/5 (91 download)
Download or read book New Publications of the Geological Survey written by Geological Survey (U.S.) and published by . This book was released on 1985 with total page 650 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 1052 pages
Book Rating : 4.:/5 (3 download)
Download or read book Energy Research Abstracts written by and published by . This book was released on 1993 with total page 1052 pages. Available in PDF, EPUB and Kindle. Book excerpt: Semiannual, with semiannual and annual indexes. References to all scientific and technical literature coming from DOE, its laboratories, energy centers, and contractors. Includes all works deriving from DOE, other related government-sponsored information, and foreign nonnuclear information. Arranged under 39 categories, e.g., Biomedical sciences, basic studies; Biomedical sciences, applied studies; Health and safety; and Fusion energy. Entry gives bibliographical information and abstract. Corporate, author, subject, report number indexes.
Author : Albert James Ellis
Publisher :
ISBN 13 :
Total Pages : 424 pages
Book Rating : 4.:/5 (89 download)
Download or read book Chemistry and Geothermal Systems written by Albert James Ellis and published by . This book was released on 1977 with total page 424 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : National Research Council Canada
Publisher :
ISBN 13 :
Total Pages : 876 pages
Book Rating : 4.F/5 ( download)
Download or read book Canadian Geotechnical Journal written by National Research Council Canada and published by . This book was released on 1984 with total page 876 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 1424 pages
Book Rating : 4.:/5 (319 download)
Download or read book Selected Water Resources Abstracts written by and published by . This book was released on 1991 with total page 1424 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : American Chemical Society. Meeting
Publisher :
ISBN 13 :
Total Pages : 1222 pages
Book Rating : 4.:/5 (44 download)
Download or read book Abstracts of Papers written by American Chemical Society. Meeting and published by . This book was released on 1986 with total page 1222 pages. Available in PDF, EPUB and Kindle. Book excerpt:
