Kurt Bucher – författare

The internal heat of the planet Earth represents an inexhaustible reservoir of thermal energy known as Geothermal Energy. The 2nd edition of the book covers the geologic and technical aspects of developing all forms of currently available systems using this "renewable" green energy. The book presents the distribution and transport of thermal energy in the Earth. Geothermal Energy is a base load energy available at all times independent of climate and weather. The text treats the efficiency of diverse shallow near surface installations and deep geothermal systems including hydrothermal and petrothermal techniques and power plants in volcanic high-enthalpy fields. The book also discusses environmental aspects of utilizing different forms of geothermal energy, including induced seismicity, noise pollution and gas release to the atmosphere. Chapters on hydraulic well tests, chemistry of deep hot water, scale formation and corrosion, development of geothermal probes, well drillingtechniques and geophysical exploration complete the text. This book, for the first time, covers the full range of utilization of Geothermal Energy.

This new edition of the classic textbook presents a large number of diagrams showing the stability relations among minerals and groups of minerals found in metamorphic rocks. The diagrams help to determine the pressure and temperature conditions under which a given set of metamorphic rocks may have formed. Other parameters that control metamorphic mineral assemblages are also discussed and pitfalls resulting from simplifications and generalizations are highlighted. The book discusses the most common metamorphic rock types, their nomenclature, structure and graphical representation of their mineral assemblages.

Part I defines basic principles of metamorphism, introduces metamorphic processes, geologic thermometry and barometry and defines metamorphic grade. Part II presents in a systematic way mineralogical changes and assemblages found in the most common types of metamorphic rocks. The computation of diagrams is based on recent advances in quantitative petrology and geochemistry. An extensive bibliography, including the key contributions and classic papers in the field, make it an invaluable source book for graduate students and professional geologists.

Petrogenesis of Metamorphic Rocks presents a large number of diagrams showing the stability relations among minerals and groups of minerals found in metamorphic rocks. The diagrams help to determine the pressure and temperature conditions under which a given set of metamorphic rocks may have formed. Other parameters that control metamorphic mineral assemblages are also discussed and pitfalls resulting from simplifications and generalizations are highlighted. The book discusses the most common metamorphic rock types, their nomenclature, structure and graphical representation of their mineral assemblages.

Part I defines basic principles of metamorphism, introduces metamorphic processes, geologic thermometry and barometry and defines metamorphic grade. Part II presents in a systematic way mineralogical changes and assemblages found in the most common types of metamorphic rocks. The computation of diagrams is based on recent advances in quantitative petrology and geochemistry. An extensive bibliography, including the key contributions and classic papers in the field, make it an invaluable source book for graduate students and professional geologists.

Dieses Buch vermittelt umfassend die Grundlagen und technischen Anwendungen der Geothermie als erneuerbare Energiequelle und zeigt das enorme Potenzial der Erdwärmenutzung als Grundlastenergie für eine umweltfreundliche Energieversorgung auf. Nach einer Einführung in die physikalischen und chemischen Grundlagen der natürlichen geothermischen Energie werden die wichtigsten thermischen und hydraulischen Parameter sowie alle derzeit verfügbaren geothermischen Nutzungssysteme – von oberflächennahen bis zu tiefen Geothermieanlagen – im Detail besprochen. Dies umfasst die Planung, den Bau und Betrieb von Erdwärmesonden, hydrothermalen Anlagen, Untergrundspeichern, EGS-Systemen und Hochenthalpienutzungen. Dabei liegt der Fokus sowohl auf der Effizienz als auch auf den potenziellen Umweltauswirkungen dieser Systeme.

In der 4., überarbeiteten und aktualisierten Auflage werden zudem die neuesten Entwicklungen in der Geothermie vorgestellt, wie etwa die Möglichkeiten zur Sektorkopplung durch neu entwickelte Großwärmepumpen und die CO2-Sequestrierung in Hochenthalpie-Anlagen. Besondere Kapitel widmen sich der Hydraulik – inklusive der Durchführung und Auswertung hydraulischer Tests – der Hydrochemie, der Herkunft der Tiefenfluide, der Abschätzung von Reservoirtemperaturen mittels Geothermometern sowie den geophysikalischen Untersuchungsmethoden an der Erdoberfläche und im Bohrloch.

Mit dieser Auflage wird die Geothermie erstmalig in ihrer gesamten Breite abgedeckt, und durch praxisnahe Erklärungen bietet das Buch eine wertvolle Grundlage für Forschende, Planer und Anwender im Bereich der geothermischen Energie.