Fossil Superheating in Geothermal Steam Power Plants PDF Download
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Author:
Publisher:
ISBN:
Category : Geothermal engineering
Languages : en
Pages : 32
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Book Description
Author:
Publisher:
ISBN:
Category : Geothermal engineering
Languages : en
Pages : 32
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Book Description
Author:
Publisher:
ISBN:
Category : Geothermal engineering
Languages : en
Pages : 24
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Author: H. Ezzat Khalifa
Publisher:
ISBN:
Category : Feed-water pumps
Languages : en
Pages : 28
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Author:
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ISBN:
Category :
Languages : en
Pages :
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Book Description
Results of thermodynamic studies of geothermal steam power systems incorporating fossil-fired superheaters are reported. One- and two-stage systems are covered. Realistic assumptions have been included to account for losses that may be incurred in actual plants. The systems are evaluated on the basis of a number of appropriate figures of merit. It is found that fossil superheat hybrid geothermal power plants offer a thermodynamic advantage over individual fossil and geothermal plants for a wide range of operating conditions, and deserve consideration whenever fossil and geothermal energy resources are found in reasonable proximity.
Author: Ronald DiPippo
Publisher:
ISBN:
Category : Steam power plants
Languages : en
Pages : 110
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Author:
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ISBN:
Category :
Languages : en
Pages :
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Book Description
This study was conducted to determine the attainable generation increase and to evaluate the economic merits of superheating the steam that could be used in future geothermal steam power plants in the Geyser-Calistoga Known Geothermal Resource Area (KGRA). It was determined that using a direct gas-fired superheater offers no economic advantages over the existing geothermal power plants. If the geothermal steam is heated to 900/sup 0/F by using the exhaust energy from a gas turbine of currently available performance, the net reference plant output would increase from 65 MW to 159 MW (net). Such hybrid plants are cost effective under certain conditions identified in this document. The power output from the residual Geyser area steam resource, now equivalent to 1437 MW, would be more than doubled by employing in the future gas turbine enhancement. The fossil fuel consumed in these plants would be used more efficiently than in any other fossil-fueled power plant in California. Due to an increase in evaporative losses in the cooling towers, the viability of the superheating concept is contingent on development of some of the water resources in the Geysers-Calistoga area to provide the necessary makeup water.
Author: H. Ezzat Khalifa
Publisher:
ISBN:
Category : Feed-water pumps
Languages : en
Pages : 21
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Author:
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ISBN:
Category :
Languages : en
Pages :
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Book Description
A thermodynamic analysis of a hybrid fossil geothermal power plant in which the low-grade geothermal energy is used for preheating the feedwater in a fossil-fired steam power plant is presented. By restricting the geofluid to sensible heat addition, the entropy production in this process can be reduced. This results in an overall improvement in the utilization of the two energy sources. The performance of the hybrid system is studied in terms of suitably defined figures of merit. These include criteria for the choice of the appropriate hybrid utilization strategy, given the finite nature of geothermal and fossil resources. The question of optimum bleed conditions in a cycle comprising both geothermal and regenerative feedwater heating is discussed.
Author: Jack Janes
Publisher:
ISBN:
Category : Geothermal power plants
Languages : en
Pages : 110
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Book Description
Author: Ronald DiPippo
Publisher: Elsevier
ISBN: 0080554768
Category : Technology & Engineering
Languages : en
Pages : 518
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Book Description
Ron DiPippo, Professor Emeritus at the University of Massachusetts Dartmouth, is a world-regarded geothermal expert. This single resource covers all aspects of the utilization of geothermal energy for power generation from fundamental scientific and engineering principles. The thermodynamic basis for the design of geothermal power plants is at the heart of the book and readers are clearly guided on the process of designing and analysing the key types of geothermal energy conversion systems. Its practical emphasis is enhanced by the use of case studies from real plants that increase the reader's understanding of geothermal energy conversion and provide a unique compilation of hard-to-obtain data and experience. An important new chapter covers Environmental Impact and Abatement Technologies, including gaseous and solid emissions; water, noise and thermal pollutions; land usage; disturbance of natural hydrothermal manifestations, habitats and vegetation; minimisation of CO2 emissions and environmental impact assessment.The book is illustrated with over 240 photographs and drawings. Nine chapters include practice problems, with solutions, which enable the book to be used as a course text. Also includes a definitive worldwide compilation of every geothermal power plant that has operated, unit by unit, plus a concise primer on the applicable thermodynamics. * Engineering principles are at the heart of the book, with complete coverage of the thermodynamic basis for the design of geothermal power systems* Practical applications are backed up by an extensive selection of case studies that show how geothermal energy conversion systems have been designed, applied and exploited in practice* World renowned geothermal expert DiPippo has including a new chapter on Environmental Impact and Abatement Technology in this new edition
