Download An Introduction to Thermogeology: Ground Source Heating and by David Banks(auth.) PDF

By David Banks(auth.)

This authoritative advisor presents a foundation for knowing the rising expertise of flooring resource heating and cooling. It equips engineers, geologists, architects, planners and regulators with the basic talents had to control the ground's large potential to shop, provide and obtain warmth, and to enforce applied sciences (such as warmth pumps) to take advantage of that potential for house heating and cooling.

The writer has geared the ebook in the direction of realizing floor resource heating and cooling from the floor facet (the geological aspects), instead of completely the development aspects.  He explains the technological know-how in the back of thermogeology and gives useful information on various layout options.

An creation to Thermogeology: floor resource heating and cooling is aimed basically at pros whose ability components impinge at the rising know-how of floor resource heating and cooling. they are going to be conscious of the significance of the know-how and want to swiftly collect basic theoretical knowing and layout skills.

This moment variation has been completely up-to-date and multiplied to hide new technical advancements and now contains end-of-chapter learn inquiries to test the reader's understanding.

Chapter 1 An advent (pages 1–10):
Chapter 2 Geothermal strength (pages 11–39):
Chapter three The Subsurface as a warmth garage Reservoir (pages 40–78):
Chapter four what's a warmth Pump? (pages 79–113):
Chapter five warmth Pumps and Thermogeology: a quick historical past and overseas point of view (pages 114–132):
Chapter 6 floor resource Cooling (pages 133–149):
Chapter 7 recommendations and purposes for flooring resource warmth Pumps (pages 150–201):
Chapter eight The layout of Groundwater?Based Open?Loop platforms (pages 202–247):
Chapter nine Pipes, Pumps and the Hydraulics of Closed?Loop structures (pages 248–278):
Chapter 10 Subsurface warmth Conduction and the layout of Borehole?Based Closed?Loop structures (pages 279–324):
Chapter eleven Horizontal Closed?Loop structures (pages 325–352):
Chapter 12 Pond? and Lake?Based floor resource warmth platforms (pages 353–371):
Chapter thirteen status Column Wells (pages 372–382):
Chapter 14 considering sizeable: Large?Scale warmth garage and move (pages 383–409):
Chapter 15 Thermal reaction checking out (pages 410–431):
Chapter sixteen Environmental influence, rules and Geohazards (pages 432–462):

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Extra resources for An Introduction to Thermogeology: Ground Source Heating and Cooling, 2nd Edition

Sample text

When constructing our heat budget, we should remember that, in many geothermal systems, there are at least two, and maybe three, mechanisms of heat recharge to a subsurface geothermal system (Stefansson and Axelsson, 2003): • advection of magma; • advection of groundwater (or geothermal fluid); • conduction. 13 shows an example of an approximate heat budget, on a national scale, for Iceland. As regards our fluid budget, we should understand that as we extract hot fluid from a geothermal reservoir, we may deplete the fluid resource of the system and, if there is no natural recharge of groundwater, downhole heads or pressures will drop to unusable levels.

Binary systems can generate electricity from geothermal fluids of temperatures down to 85°C (or, theoretically, even lower). Recent developments such as the ammonia-water-based Kalina cycle seem set to improve efficiencies at lower temperatures (Boyle, 2004; Dickson and Fanelli, 2004). 2) can also be employed to convert geothermal heat of modest temperature to mechanical work and thereafter to electricity. e. fish farming). Heat pumps (Chapter 4) may or may not be employed to deliver heating to these uses.

Below some tectonic plates, localised plumes of warm material rise from the deep mantle at ‘hot spots’ seemingly unrelated to the broader tectonic picture. The mechanisms of these ‘mantle plumes’ are still poorly understood, but these volcanic and geothermal loci can persist for geologically extended periods. The Hawaiian island chain was formed by successive volcanic eruption centres as the Pacific Plate drifted slowly across the location of a mantle plume. The Yellowstone ‘supervolcano’ and associated geothermal field is another example of ‘plume’ activity.

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