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Download or read book The University of Minnesota Aquifer Thermal Energy Storage (ATES) Field Test Facility written by and published by . This book was released on 1991 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
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ISBN 13 :
Total Pages : 122 pages
Book Rating : 4.:/5 (16 download)
Download or read book University of Minnesota Aquifer Thermal Energy Storage (ATES) Project Report on the First Long-term Cycle written by and published by . This book was released on 1991 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt: The technical feasibility of high-temperature (>100°C) aquifer thermal energy storage (IOTAS) in a deep, confined aquifer was tested in a series of experimental cycles at the University of Minnesota's St. Paul field test facility (FTF). This report describes the additions to the FTF for the long-term cycles and the details of the first long-term cycle (LT1) that was conducted from November 1984 through May 1985. Heat recovery; operational experience; and thermal, chemical, hydrologic, and geologic aspects of LT1 are reported. The permits for long-term cycles required the addition of a monitoring well 30.5 m from the storage well for monitoring near the edge of the thermally affected area and allowed the addition of a cation-exchange water softener to enable continuous operation during the injection phase. Approximately 62% of the 9.47 GWh of energy added to the 9.21 × 104 m3 of ground water stored in the aquifer LT1 was recovered. Ion-exchange water softening of the heated and stored ground water prevented scaling in the system heat exchangers and the storage well and changed the major-ion chemistry of the stored water. Temperatures at the storage horizons in site monitoring wells reached as high as 108°C during the injection phase of LT1. Following heat recovery, temperatures were
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ISBN 13 :
Total Pages : 205 pages
Book Rating : 4.:/5 (683 download)
Download or read book University of Minnesota Aquifer Thermal Energy Storage (ATES) Project Report on the Third Long-term Cycle written by and published by . This book was released on 1994 with total page 205 pages. Available in PDF, EPUB and Kindle. Book excerpt: The University of Minnesota aquifer thermal energy storage (ATES) system has been operated as a field test facility (FTF) since 1982. The objectives were to design, construct, and operate the facility to study the feasibility of high-temperature ATES in a confined aquifer. Four short-term and two long-term cycles were previously conducted, which provided a greatly increased understanding of the efficiency and geochemical effects of high-temperature aquifer thermal energy storage. The third long-term cycle (LT3) was conducted to operate the ATES system in conjunction with a real heating load and to further study the geochemical impact that heated water storage had on the aquifer. For LT3, the source and storage wells were modified so that only the most permeable portion, the Ironton-Galesville part, of the Franconia-Ironton-Galesville aquifer was used for storage. This was expected to improve storage efficiency by reducing the surface area of the heated volume and simplify analysis of water chemistry results by reducing the number of aquifer-related variables which need to be considered. During LT3, a total volume of 63.2 x 103 m 3 of water was injected at a rate of 54.95 m3/hr into the storage well at a mean temperature of 104.7°C. Tie-in to the reheat system of the nearby Animal Sciences Veterinary Medicine (ASVM) building was completed after injection was completed. Approximately 66 percent (4.13 GWh) of the energy added to the aquifer was recovered. Approximately 15 percent (0.64 GWh) of the usable (10 building. Operations during heat recovery with the ASVM building's reheat system were trouble-free. Integration into more of the ASVM (or other) building's mechanical systems would have resulted in significantly increasing the proportion of energy used during heat recovery.
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ISBN 13 :
Total Pages : 127 pages
Book Rating : 4.:/5 (727 download)
Download or read book University of Minnesota Aquifer Thermal Energy Storage (ATES) Project Report on the Second Long-term Cycle written by and published by . This book was released on 1991 with total page 127 pages. Available in PDF, EPUB and Kindle. Book excerpt: The technical feasibility of high-temperature (>100°C (>212°F)) aquifer thermal energy storage (ATES) in a deep, confined aquifer was tested in a series of experimental cycles at the University of Minnesota's St. Paul field test facility (FTF). This report describes the second long-term cycle (LT2), which was conducted from October 1986 through April 1987. Heat recovery; operational experience; and thermal, chemical, hydrologic, and geologic effects are reported. Approximately 61% of the 9.21 GWh of energy added to the 9.38 x 104 m3 of ground water stored during LT2 was recovered. Temperatures of the water stored and recovered averaged 118°C (244°F) and 85°C (185°F), respectively. Results agreed with previous cycles conducted at the FTF. System operation during LT2 was nearly as planned. Operational experience from previous cycles at the FTF was extremely helpful. Ion-exchange softening of the heated and stored aquifer water prevented scaling in the system heat exchangers and the storage well, and changed the major-ion chemistry of the stored water. Sodium bicarbonate replaced magnesium and calcium bicarbonate as primary ions in the softened water. Water recovered form storage was approximately at equilibrium with respect to dissolved ions. Silica, calcium, and magnesium were significantly higher in recovered water than in injected water. Sodium was significantly lower in water recovered than in water stored.
Author : M.C. Hoyer
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ISBN 13 :
Total Pages : 61 pages
Book Rating : 4.:/5 (626 download)
Download or read book University of Minnesota Aquifer Thermal Energy Storage (ATES) Project Report on the First Long-term Cycle written by M.C. Hoyer and published by . This book was released on 1991 with total page 61 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : M.C. Hoyer
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ISBN 13 :
Total Pages : 79 pages
Book Rating : 4.:/5 (476 download)
Download or read book University of Minnesota Aquifer Thermal Energy Storage (ATES) Project Report on the Second Long-term Cycle written by M.C. Hoyer and published by . This book was released on 1991 with total page 79 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : University of Minnesota. Physical Plant
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ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (626 download)
Download or read book University of Minnesota Aquifer Thermal Energy Storage (ATES) Project Report on the Third Long-term Cycle written by University of Minnesota. Physical Plant and published by . This book was released on 1993 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : University of Minnesota. Physical Plant
Publisher :
ISBN 13 :
Total Pages : 354 pages
Book Rating : 4.:/5 (319 download)
Download or read book Proposal for Providing Conceptual Designs to Demonstrate the Feasibility of Using an Aquifer Thermal Energy Storage System (ATES) on a Seasonal Basis in Heating And/or Cooling Applications: Technical proposal written by University of Minnesota. Physical Plant and published by . This book was released on 1979 with total page 354 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Permeability, Geochemical, and Water Quality Tests in Support of an Aquifer Thermal Energy Storage Site in Minnesota written by and published by . This book was released on 1985 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This report describes the Underground Energy Storage Program's efforts to characterize physicochemical processes at DOE's ATES Field Test Facility (FTF) located on the University of Minnesota campus at St. Paul, Minnesota. Experimental efforts include: field tests at the St. Paul FTF to characterize fluid injectability and to evaluate the effectiveness of fluid-conditioning equipment, geochemical studies to investigate chemical reactions resulting from alterations to the aquifer's thermal regime, and laboratory tests on sandstone core from the site. Each experimental area is discussed and results obtained thus far are reported. 23 refs., 39 figs., 12 tabs.
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ISBN 13 :
Total Pages : 250 pages
Book Rating : 4.:/5 (319 download)
Download or read book Proposal for Providing Conceptual Designs to Demonstrate the Feasibility of Using an Aquifer Thermal Energy Storage System (ATES) on a Seasonal Basis in Heating And/or Cooling Applications: Technical proposal appendices written by and published by . This book was released on 1979 with total page 250 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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ISBN 13 :
Total Pages : 35 pages
Book Rating : 4.:/5 (727 download)
Download or read book Summary of Seasonal Thermal Energy Storage Field Test Projects in the United States written by and published by . This book was released on 1989 with total page 35 pages. Available in PDF, EPUB and Kindle. Book excerpt: Seasonal thermal energy storage (STES) involves storage of available heat or chill for distribution at a later time to meet thermal loads. STES can reduce energy consumption, peak energy demand, and emissions of carbon dioxide to the atmosphere over conventional systems. It is estimated that full-scale application of STES would provide 2% to 4% of total energy needs in the United States. One STES technology, aquifer thermal energy storage (ATES), has been determined to be the most cost-effective option in the United States when site conditions enable its use. ATES has been analyzed in the laboratory and investigated in the field in the United States since the program was established at Pacific Northwest Laboratory (PNL) in 1979. Two field test facilities (FTFs), one for heating ATES at the University of Minnesota and the other for cooling ATES at the University of Alabama, have been primary testing grounds for US ATES research. Computer models have been developed to analyze the complex thermal and fluid dynamics. Extensive monitoring of FTFs has provided verification of and refinements to the computer models. The areas of geochemistry and microbiology have been explored as they apply to the aquifer environment. In general, the two FTFs have been successful in demonstrating the steps needed to make an ATES system operational.
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ISBN 13 :
Total Pages : 80 pages
Book Rating : 4.3/5 (555 download)
Download or read book Aquifer Thermal Energy Storage Program, Environmental Assessment (EA). written by and published by . This book was released on 1981 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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ISBN 13 :
Total Pages : 244 pages
Book Rating : 4.:/5 (319 download)
Download or read book Proposal for Providing Conceptual Designs to Demonstrate the Feasibility of Using an Aquifer Thermal Energy Storage System (ATES) on a Seasonal Basis in Heating And/or Cooling Applications: Cost and business proposal written by and published by . This book was released on 1979 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : L. D. Kannberg
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ISBN 13 :
Total Pages : 43 pages
Book Rating : 4.:/5 (475 download)
Download or read book Underground Energy Storage Program. 1985 Annual Summary written by L. D. Kannberg and published by . This book was released on 1986 with total page 43 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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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.
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ISBN 13 :
Total Pages : 312 pages
Book Rating : 4.:/5 (3 download)
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1992 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Aquifer Thermal Energy Storage Reference Manual written by and published by . This book was released on 1980 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the reference manual of the Seasonal Thermal Energy Storage (STES) Program, and is the primary document for the transfer of technical information of the STES Program. It has been issued in preliminary form and will be updated periodically to include more technical data and results of research. As the program progresses and new technical data become available, sections of the manual will be revised to incorporate these data. This primary document contains summaries of: the TRW, incorporated demonstration project at Behtel, Alaska, Dames and Moore demonstration project at Stony Brook, New York, and the University of Minnesota demonstration project at Minneapolis-St. Paul, Minnesota; the technical support programs including legal/institutional assessment; economic assessment; environmental assessment; field test facilities; a compendia of existing information; numerical simulation; and non-aquifer STES concepts. (LCL).
