Results 71 to 80 of about 316,691 (205)
Progress of the LASL dry hot rock geothermal energy project [PDF]
The possibilities and problems of extracting energy from geothermal reservoirs which do not spontaneously yield useful amounts of steam or hot water are discussed.
Smith, M. C.
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Exoplanet interiors and habitability [PDF]
, 2019 More than 1000 exoplanets with a radius smaller than twice that of the Earth are currently known, mainly thanks to space missions dedicated to the search of exoplanets.
Hoolst, Tim Van +2 more
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Gravimetric Soil Moisture Protocols [PDF]
, 2003 The purpose of this resource is to measure soil water content by mass. Students collect soil samples with a trowel or auger and weigh them, dry them, and then weigh them again.
The GLOBE Program, University Corporation for Atmospheric Research (UCAR)
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Petroleum Exploration and DevelopmentBased on the independently developed true triaxial multi-physical field large-scale physical simulation system of in-situ injection and production, we conducted physical simulation of long-term multi-well injection and production in the hot dry rocks of ...
Peng ZHAO +6 more
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Numerical simulation of rock breaking by PDC bit in hot dry rocks
Natural Gas Industry B, 2019 Penetrating through hot dry rocks for geothermal resources with high geothermal gradients, high degrees of hardness and abrasivity will be extremely difficult, and a reasonable tooth distribution is a key factor to improve its rock-breaking efficiency ...
Xiaohua Zhu, Zhaowang Dan
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Transfer of hot dry rock technology [PDF]
, 1985 The Hot Dry Rock Geothermal Energy Development Program has focused worldwide attention on the facts that natural heat in the upper part of the earth's crust is an essentially inexhaustible energy resource which is accessible almost everywhere, and that practical means now exist to extract useful heat from the hot rock and bring it to the earth's ...
openaire +2 more sources
Arsenic in the Water, Soil Bedrock, and Plants of the Ester Dome Area of Alaska [PDF]
, 1982 Concentrations of arsenic as large as 10 ppm (200 times the safe limit for drinking water) occur in the groundwater of a mineralized residential area near Fairbanks. Bedrock of the area contains 750 ppm As, primarily as arsenopyrite and scorodite. The
Dinkel, Donald +3 more
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Case Studies in Thermal EngineeringThis study designs and assesses a new type of shell and tube downhole heat exchanger (NDHE) equipped with organic working fluid (R32, R134a) to increase the thermal performance of the single well geothermal system.
Dongxi Liu +6 more
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Progress in hot dry rock exploitation
International Journal of Energy Research, 1985 The term hot dry rock (HDR) has been used to describe the exploitation of the thermal energy contained in rocks that have a sufficiently high temperature but contain insufficient fluids to enable the heat to be extracted. The attraction of such a resource is that it is probably available everywhere, but at varying depths.
openaire +1 more source
Prediction of Thermal Behavior of Pervious Concrete Pavements in Winter [PDF]
, 2017 Because application of pervious concrete pavement (PCPs) has extended to cold-climate regions of the United States, the safety and mobility of PCP installations during the winter season need to be maintained.
Chen, Zhao +3 more
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