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Browsing items in: Geo-Heat Digital Library

(1580 results)



Display: 20

    • World Status of Geothermal Energy Use Overview: 1995-1999

    • Geothermal energy; power generation; direct use; world update; aquaculture; greenhouses; space heating; district heating; bathing; snow melting; industrial; Africa; Americas; Asia; Europe; Oceania; energy savings
    • Early humans probably used geothermal water that occurred in natural pools and hot springs for cooking, bathing and to keep warm. We have archeological evidence that the Indians of the Americas occupied sites around these geothermal resources for...
    • World Geothermal Generation in 2007

    • Power Generation; Germany; Iceland; Austria; Costa Rica; El Salvador; New Zealand; Other Renewables; Geothermal Energy; Italy; Mexico; Indonesia
    • The major activities carried out for geothermal electricity generation since WGC2005 are analyzed in this paper. Data are presented for the countries where some new addition to the existing capacity has been realized, with exception for the...
    • Workshop on Heat and Mass Transfer in Porous Media

    • GEOTHERMAL ENERGY; WORKSHOPS; CONFERENCE PROCEEDINGS; HEAT TRANSFER; MASS TRANSFER; POROUS; POROSITY; MODELS; CONDUCTIVITY; THERMAL CONDUCTIVITY; CONVECTION; PERMEABILITY
    • This volume contains the proceedings of the workshop on heat and mass transport in porous media held at Case Western Reserve University on 14-15 October 1974. The workshop is particularly timely with the renewed interest in understanding transport...
    • Workshop on Dry Cooling Systems

    • GEOTHERMAL ENERGY; DRY COOLING SYSTEMS; HEAT REJECTION SYSTEMS; THERMAL POLLUTION; COOLING TOWERS; AIR-COOLED HEAT EXCHANGERS; THERMODYNAMICS
    • Proceedings of The Workshop include 14 papers and discussions on current developments in dry cooling systems. The objectives of the Workshop were (a) to identify problem areas, (b) to identify the status of current relevant R&D activities, and (c)...
    • White Sulphur Springs, West Virginia

    • White Sulphur Springs; West Virginia; History; Resort; Hot Springs; Greenbrier Conty; Geothermal Energy
    • A large, historic, health-oriented mineral springs resort, The Greenbrier, occupies 2,600 ha (6,500 acres) in an upland valley of the Allegheny Mountains near the West Virginia-Virginia border in the eastern U.S. Natural mineral water at 17C...
    • What's Happening in Reno

    • Reno, Nevada; Steamboat Springs; Space; Heating; Hotels; Downhole Heat Exchangers; Peppermill; User-Coupled Drilling Program; Moana; Direct Use
    • Reno and the areas around the city have utilized geothermal for many years. The Peppermill Motel, which recently expanded its use, the Mark Twain Motel, Steamboat Springs, and several other spas, swimming pools, and smaller space heating...
    • Wet Geothermal Potential of the Kingman-Williams Region, Arizona

    • GEOTHERMAL ENERGY; ARIZONA; KINGMAN-WILLIAMS; CHEMISTRY; EXPLORATION; CHLORIDE; LOW TEMPERATURE; GEOLOGY; GEOPHYSICS; GEOCHEMISTRY
    • The Kingman-Williams region, Arizona, possesses few thermal waters of deep origin. Evaluation of 33 waters (8 thermal) reveals that thermal waters are restricted to the Basin and Range tectonic province; no thermal waters were found on the west...
    • Western States Geothermal Databases CD

    • Databases; Western States; CD; Wells; Springs; Low Temperature; Geothermal Energy
    • Low- and moderate-temperature geothermal resources are widely distributed throughout the western and central U.S. There are also a few low-temperature geothermal resources that occur in the east. There has been several major efforts in assessing...
    • Wellbore Storage Effects in Geothermal Wells

    • GEOTHERMAL ENERGY; GEOTHERMAL WELLS; PERFORMANCE TESTING; COMPRESSIBILITY; FLUID FLOW; GEOTHERMAL FIELDS; HEAT LOSSES; HEAT TRANSFER; MATHEMATICAL MODELS; TWO-PHASE FLOW; ENERGY LOSSES; ENERGY TRANSFER; LOSSES; MECHANICAL PROPERTIES; TESTING; WELLS
    • The early time response in the well testing of an homogeneous reservoir is expected to give a unit slope when log (pressure) is plotted versus log (time). It is shown that this response is a special case, and that in general another non-dimensional...
    • Well-Pumping Issues in Commercial Groundwater Heat Pump Systems

    • Ground water; pumping; commercial; plate heat exchanger; COP; EER; pump head; power requirement; flow; geothermal energy
    • Groundwater flow minimizes total system power (well pump, heat pumps, loop pump) and is based upon building peak block load. Optimum flow for water temperatures in the 50°F to 70°F range is 1.25 gpm to 2.5 gpm per ton of peak block load, depending...
    • Well Pumps and Piping

    • Well Pumps; Submersible; Jet; Pressure Tanks; Pipe Sizing; Heat Exchangers; Piping; Geothermal Energy; Heat Loss
    • Well pumps for larger geothermal applications are normally of the lineshaft, vertical turbine type with the electric motor located on the surface. This type of pump with oil lubrication and adequate allowance for thermal expansion has proven to be...
    • Well Pumps

    • Geothermal energy; low temperature; line shaft; submersible; elongation; lateral; variable speed drive; TDH; recirculation; lesson learned; impeller; fluid coupling
    • Pumping is often necessary in order to bring geothermal fluid to the surface. For direct-use applications, there are primarily two types of production well pumps; (a) lineshaft turbine pumps and (b) submersible pumps - the difference being the...
    • Well Pumps

    • Pumping; Geothermal Fluids; Lineshaft; Submersible; Variable Speed Drives; Geothermal Energy
    • Pumping is often necessary in order to bring geothermal fluid to the surface. For direct-use applications, there are primarily two types of production well pumps; (a) lineshaft turbine pumps and (b) submersible pumps - the difference being the...
    • Well Drilling for

    • Wells; Drilling; Equipment; Cost; Fluids; Cable Tool (rig drilling); Rotary Rig; Drill String; Klamath Falls, Oregon; Moderate Temperature; Geothermal Energy
    • Geothermal well drilling methods, equipment, and costs are briefly discussed. Limitations of the drilling methods and equipment are noted

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