Results 1 to 10 of about 10,569 (166)

Geochemical Characteristics and Influencing Factors of Soil Selenium in Longzi County, Tibet Autonomous Region

open access: yesYankuang ceshi, 2023
BACKGROUND Selenium (Se) is one of the essential trace elements in the human body, which has many biological functions. Insufficient or excessive intake of Se will cause a series of diseases.
Duojiweise   +5 more
doaj   +1 more source

Modeling of Geothermal Systems [PDF]

open access: yesJournal of Petroleum Technology, 1986
Summary During the last decade, the use of numerical modeling for geothermal resource evaluation has grown significantly, and new modeling approaches have been developed. In this paper, we present a summary of the current status in numerical modeling of geothermal systems, emphasizing recent developments.
Bodvarsson, G.S.   +2 more
openaire   +2 more sources

Nested Shallow Geothermal Systems [PDF]

open access: yesSustainability, 2020
The long-term sustainability of shallow geothermal systems in dense urbanized areas can be potentially compromised by the existence of thermal interfaces. Thermal interferences between systems have to be avoided to prevent the loss of system performance. Nevertheless, in this work we provide evidence of a positive feedback from thermal interferences in
Alejandro García-Gil   +6 more
openaire   +5 more sources

Factors controlling the distribution of granite reservoirs of hydrothermal system type in South China: A case study of Huangshadong geothermal field in Yuezhong Depression, China

open access: yesEnergy Geoscience, 2023
The granitoids widely distributed in South China are characterized by multi-stage evolution via episodic intrusions, in a complex geodynamic setting. Since granites have high radioactive heat generation and excellent thermal conductivity, a deep moderate-
Jianyun Feng
doaj   +1 more source

Permeability and Groundwater Flow Dynamics in Deep‐Reaching Orogenic Faults Estimated From Regional‐Scale Hydraulic Simulations

open access: yesGeochemistry, Geophysics, Geosystems, 2022
Numerical modeling is used to understand the regional scale flow dynamics of the fault‐hosted orogenic geothermal system at the Grimsel Mountain Pass in the Swiss Alps.
Peter Alt‐Epping   +2 more
doaj   +1 more source

Development of Changeover Operating Method Based on Performance Prediction of Hybrid Geothermal Heat Pump Systems through Field Test and Numerical Analysis

open access: yesEnergies, 2020
The installation and operation of geothermal systems increased due to the expectation of good cooling and heating performance due to stable heat source temperatures. In actual geothermal system operations, heat source temperature rises or falls due to an
Ji-Hyun Shin   +3 more
doaj   +1 more source

Analysis of geothermal potential in Hangjiahu area based on remote sensing and geographic information system

open access: yesFrontiers in Earth Science, 2023
Geothermal resources are one of the most valuable renewable energy sources because of their stability, reliability, cleanliness, safety and abundant reserves.
Linxia Xu   +12 more
doaj   +1 more source

Contribution of deep-earth fluids to the geothermal system: A case study in the Arxan volcanic region, northeastern China

open access: yesFrontiers in Earth Science, 2023
Investigations of the hot spring water and gas in the volcanic region are involved in assessing geothermal resources and understanding groundwater circulation, volcano, and earthquake activities.
Yueju Cui   +7 more
doaj   +1 more source

An Integrated HBIM Simulation Approach for Energy Retrofit of Historical Buildings Implemented in a Case Study of a Medieval Fortress in Italy

open access: yesEnergies, 2020
The Italian building stock consists of buildings mainly constructed until the mid-20th century using pre-industrial construction techniques. These buildings require energy refurbishment that takes into account the preservation of their architectural ...
Cristina Piselli   +9 more
doaj   +1 more source

Characterisation of fluid flow conditions and paths in the Buntsandstein Gp. sandstones reservoirs, Upper Rhine Graben

open access: yesBSGF - Earth Sciences Bulletin, 2021
Deeply buried sandstone reservoirs are targeted in the Upper Rhine Graben (URG) for geothermal and hydrocarbon resources. These reservoirs are affected by a convective heat flow along fault zones and have a complex diagenetic and deformation history ...
Bossennec Claire   +6 more
doaj   +1 more source

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