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Category :
Languages : en
Pages : 0
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Author: Donald W. Brown
Publisher: Springer Science & Business Media
ISBN: 3540689109
Category : Science
Languages : en
Pages : 669
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Book Description
Mining the Earth's Heat: Hot Dry Rock Geothermal Energy describes the work carried out by the Los Alamos National Laboratory to turn an idealistic concept - that of drawing useful amounts of energy from the vast underground store of hot rock at reachable depths - into a practical reality. This book provides comprehensive documentation of the over two decades of experiments carried out at the test site at Fenton Hill, New Mexico, where the feasibility of accessing and extracting this vast natural resource was finally demonstrated. It also discusses the numerous technical, administrative, and financial hurdles that had to be overcome along the way. This publication will no doubt prove invaluable to researchers around the world as they strive to move this now-proven technology toward commercial viability. In addition, it is a valuable source of relevant information for anyone interested in the world energy outlook for the 21st century and beyond.
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Category :
Languages : en
Pages : 0
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Author: Roland A. Pettitt
Publisher:
ISBN:
Category : Hot-dry-rock systems
Languages : en
Pages : 0
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Author: Roland A. Pettitt
Publisher:
ISBN:
Category : Hot-dry-rock systems
Languages : en
Pages :
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Author: H. Christopher H. Armstead
Publisher: Spon Press
ISBN:
Category : Science
Languages : en
Pages : 500
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Book Description
Very Good,No Highlights or Markup,all pages are intact.
Author: Wendell A. Duffield
Publisher: DIANE Publishing
ISBN: 9780788119224
Category : Geothermal resources
Languages : en
Pages : 78
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Book Description
Describes the potential for geothermal energy, the naturally occurring heat within the Earth. Summarizes information related to developing geothermal energy while minimizing its environmental impact. Discusses its versatility; it can be used in the generation of electricity, as well as direct use applications, such as space heating and industrial processes. Contains color photos, charts, and diagrams.
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Category :
Languages : en
Pages : 10
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Book Description
The extraction of heat or thermal energy from the Earth -- heat mining -- has the potential to play a major role as an energy supply technology for the 21st century. However, even if reservoir stimulation goals are achieved, the role of heat mining with today's energy prices and development costs is limited to only a small fraction of the earth's surface, specifically to geologically active regions where geothermal gradients are high. This paper examines the prospects for universal heat mining and the types of developments required to make it a reality. A generalized multi-parameter economic model was developed for optimizing the design and performance of hot dry rock (HDR) geothermal systems by linking an SQP nonlinear programming algorithm with a generalized HDR economic model. HDR system design parameters selected for optimization include well depth (or initial rock temperature), geofluid flow rate, number of fractures and injection temperature. The sensitivities of the optimized design parameters, HDR system performance, and levelized electricity price to average geothermal gradient, fractured area/volume, maximum allowable geofluid temperature, reservoir flow impedance, well deviation, and fracture separation have been investigated. Key technical and institutional obstacles to universal heat mining are discussed in a more general context. These include (1) developing methods for stimulating low permeability formations to provide sustained productivity with acceptable flow/pressure losses (2) dealing with barriers to change primary energy supply options when fossil energy resources are abundant and prices are low and (3) lowering the high drilling costs for developing the deep (>5 km) reservoirs required in low gradient areas. Advanced concepts in drilling technology that could lead to a linear as opposed to exponential relationship between cost and depth are discussed in light of their potential impact on heat mining.
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ISBN:
Category :
Languages : en
Pages : 17
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Book Description
Mining Heat from the hot dry rock (HDR) resource that lies beneath the earth's crust may provide an almost inexhaustible supply of energy for mankind with minimal environmental effects. In the heat mining process, water is pumped down an injection well into a mass of hydraulically fractured hot rock. As the water flows under high pressure through the opened rock joints, it becomes heated by the rock. It is returned to the surface through a production well (or wells) located some distance from the injector where its thermal energy is recovered by a heat exchanger. The same water is then recirculated through the system to extract more thermal energy. In this closed-loop process, nothing but heat is released to the environment during normal operation. The technical feasibility of HDR heat mining already has been proven by field testing. A long-term flow test is scheduled to begin in 1991 at the world's largest HDR heat mine in New Mexico, USA, to demonstrate that energy can be produced from HDR on a continuous basis over an extended time period. Significant HDR programs are also underway in several other countries. The paper describes the HDR resource, the heat mining concept, environmental characteristics, economics, developments at Los Alamos to date, and HDR development outside the US. 15 refs., 5 figs., 2 tabs.
Author: Kenneth Neville Moss
Publisher:
ISBN:
Category : Accidents
Languages : en
Pages : 278
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Book Description
Author: Wendell A. Duffield
Publisher: DIANE Publishing
ISBN: 1428917373
Category : Geothermal resources
Languages : en
Pages : 43
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Book Description
