Small Geothermal Resources
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Author | : D. Chandrasekharam |
Publisher | : CRC Press |
Total Pages | : 436 |
Release | : 2002-01-01 |
Genre | : Technology & Engineering |
ISBN | : 9781439833575 |
This text aims to be a driving force for an economically sound and sustainable development of developing countries. It looks at the provision of geothermal energy within the framework of sustainable energy development for power generation, rural electrification and so forth.
Author | : Mary H. Dickson |
Publisher | : |
Total Pages | : 274 |
Release | : 1990 |
Genre | : Geothermal engineering |
ISBN | : 9789211571776 |
Author | : Department of Energy (DOE) |
Publisher | : |
Total Pages | : 174 |
Release | : 2017-04-12 |
Genre | : |
ISBN | : 9781521057148 |
This comprehensive compilation of DOE documents provides unique and practical information about geothermal heat pumps, including small geothermal systems and DIY systems. Contents: Chapter 1: Small Geothermal Systems: A Guide For The Do-It-Yourselfer * Chapter 2: Using The Earth To Heat and Cool Buildings * Chapter 3: An Information Survival Kit For The Prospective Geothermal Heat Pump Owner * Chapter 4: Success Stories of the Geothermal Energy Program * Chapter 5: Ground-Source Heat Pumps: Overview of Market Status, Barriers to Adoption, and Options for Overcoming Barriers A heat pump-like an air conditioner or refrigerator-moves heat from one place to another. In the summer, a geothermal heat pump (GHP) operating in a cooling mode lowers indoor temperatures by transferring heat from inside a building to the ground outside or below it. Unlike an air conditioner, though, a heat pump's process can be reversed. In the winter, a GHP extracts heat from the ground and transfers it inside. Also, the GHP can use waste heat from summer air-conditioning to provide virtually free hot-water heating. The energy value of the heat moved is typically more than three times the electricity used in the transfer process. GHPs are efficient and require no backup heat because the earth stays at a relatively moderate temperature throughout the year. A GHP system has three major components: a ground loop (buried piping system), the heat pump itself (inside the house), and a heating and cooling distribution system. There are two main types of GHP systems. The earth-coupled (or closed-loop) GHP uses sealed horizontal or vertical pipes as heat exchangers through which water, or water and antifreeze, transfer heat to or from the ground. The second type, the water-source (or open-loop) GHP, pumps water from a well or other source to the heat exchanger, then back to the source. Because of their versatility, earth-coupled systems dominate the GHP market. Typical loop installations for the earth-coupled systems are expected to work for 50 years. More than 400,000 GHPs are operating in homes, schools, and commercial buildings in the United States. They are adaptable to virtually any kind of building; the Federal government has installed nearly 10,000 GHPs. Geothermal resources are available across the United States at varying depths, providing a ubiquitous buried treasure of domestic renewable energy. Enormous amounts of hydrothermal geothermal energy is available in the western United States, but theoretically, geothermal sources are available across the United States. The key to being able to use geothermal energy is to find a way to enhance geothermal systems lacking key natural characteristics. Natural geothermal systems depend on three factors to produce energy: heat, water, and permeability. While heat is present virtually everywhere at depth, water and permeability are less abundant. Geothermal technology is an attractive renewable resource because it can provide a constant source of renewable baseload electricity. While the sun and wind offer a large potential source of renewable energy that varies over time, geothermal technology is uninterruptible and can provide a stable baseload form of energy while diversifying the nation's renewable portfolio. Geothermal energy has low environmental risk and impact. When used with a closed-loop binary power plant, geothermal systems emit zero greenhouse gas emissions and have a near zero environmental risk or impact.
Author | : D. Chandrasekharam |
Publisher | : CRC Press |
Total Pages | : 182 |
Release | : 2008-07 |
Genre | : Science |
ISBN | : |
In many developing countries the exponentially growing electricity demand can be covered by using locally available, sustainable low-enthalpy geothermal resources (80-150 °C). Such low-enthalpy sources can make electricity generation more independent from oil imports or from the over-dependence on hydropower. Until now this huge energy resource has only been used by some developed countries like the USA, Iceland and New Zealand. The reason why low-enthalpy geothermal resources are not used for electricity generation is that there is still a misconception that low-enthalpy thermal fluids are fit only for direct application. The advancement of drilling technology, development of efficient heat exchangers and deployment of high sensitive binary fluids contribute to the useful application of this energy resource on a much wider scale. This book focuses on all aspects of low enthalpy geothermal thermal fluids. It will be an important source book for all scientists working on geothermal energy development. Specifically those involved in research in developing countries rich in such thermal resources, and for agencies involved in bilateral and international cooperation.
Author | : United States. Congress. Senate. Committee on Interior and Insular Affairs. Subcommittee on Water and Power Resources |
Publisher | : |
Total Pages | : 810 |
Release | : 1973 |
Genre | : Geothermal resources |
ISBN | : |
Author | : UNITAR/UNDP Centre on Small Energy Resources. International School of Geothermics |
Publisher | : |
Total Pages | : |
Release | : 1988 |
Genre | : Geothermal engineering |
ISBN | : |
Author | : Patrick K. McAuliffee |
Publisher | : |
Total Pages | : 76 |
Release | : 1983 |
Genre | : Electric power production |
ISBN | : |
Author | : |
Publisher | : |
Total Pages | : 140 |
Release | : 1981 |
Genre | : |
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Total Pages | : |
Release | : 1988 |
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Author | : |
Publisher | : |
Total Pages | : 580 |
Release | : 1999 |
Genre | : Geothermal engineering |
ISBN | : |