Results 41 to 50 of about 400,038 (284)

Casing failure identification of long-abandoned geothermal wells in Field Dieng, Indonesia

Geothermal Energy, 2019
Integrity issues create challenges for maintaining the production of mature geothermal wells. Such problems are likely to occur in wells designed according to oil and gas standards, without considering the extreme geothermal environment.
B. T. H. Marbun, R. H. Ridwan, S. Z. Sinaga, B. Pande, B. A. Purbantanu   +4 more
doaj   +1 more source

In Situ CO2‐Induced Hydrogels for Enhancing Carbon Sequestration in Saline Aquifers

Advanced Science, EarlyView.
A novel integrated method that combines in situ CO2‐induced phase‐transition hydrogels formed by a C22‐tailed tertiary amine dispersion with tailored deep eutectic solvents to increase CO2 sequestration in saline aquifers. ABSTRACT Carbon sequestration in saline aquifers underpins global net‑zero emission goals, yet existing CO2 storage capacity ...
Fuchuan Liu, Xinjie Luo, Dianguo Wu, Xuezhi Zhao, Yan Zhang, Yujun Feng   +5 more
wiley   +1 more source

Phosphine Coordination to Ce, Nd, Np, and Pu in ArBiAMPtBu‐Supported Complexes and Their 2H and 13C Isotopologues

Advanced Science, EarlyView.
A dianionic ligand designed to encourage metal‐phosphine coordination—bis((3,5‐dimethylphenyl)amidomethyl)tertbutylphosphine (ArBiAMPtBu)—was employed in the synthesis of paramagnetic complexes of Ce, Nd, Np, and Pu, producing MI(ArBiAMPtBu)(thf)3.
Novan A. G. Gray, Yury Minko, Brenna K. Cashman, R. Joseph Lastowski, Adam R. Altenhof, Harris E. Mason, Daniel J. Lussier, Frank MacGregor, Andrew J. Gaunt, Aaron M. Tondreau   +9 more
wiley   +1 more source

Calculation of gross electrical power from the production wells in Lahendong geothermal field in North Sulawesi, Indonesia [PDF]

, 2010
Geothermal energy in the Province of North Sulawesi in Indonesia has potential to produce 865 MW of electricity. One of the geothermal prospects in North Sulawesi that has been developed to generate electricity is Lahendong geothermal field.
Maluegha, Benny Lokombanua
core  

Uncovering renewable energy policy impact channels on land values, the local farm structure, and farmland heterogeneity

American Journal of Agricultural Economics, EarlyView.
Abstract Germany's Renewable Energy Sources Act (REA), enacted in 2000 and subsequently amended, subsidized national renewable energy production with fixed feed‐in tariffs for renewable energy sources (RE) from wind, solar, and biogas. Empirical studies suggest that the policy was creating windfall effects for landowners and attribute farmland use ...
Lars Isenhardt, Stefan Seifert, Saskia Wolff, Tobia Lakes, Marten Graubner, Axel Werwatz, Silke Hüttel   +6 more
wiley   +1 more source

Impact of well placement and flow rate on production efficiency and stress field in the fractured geothermal reservoirs

Deep Underground Science and Engineering
Geothermal energy has gained wide attention as a renewable alternative for mitigating greenhouse gas emissions. The advancements in enhanced geothermal system technology have enabled the exploitation of previously inaccessible geothermal resources ...
Xinghui Wu, Meifeng Cai, Xu Wu, Ketong Zhang, Ziqing Yin, Yu Zhu   +5 more
doaj   +1 more source

Radiative Hybrid Nanofluid Flow Over a Porous Riga Surface: A Fuzzy–ANN Modeling Approach

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT This study proposes a fuzzy–ANN model to investigate the nonlinear thermal transport in a tangent hyperbolic (Tanh) hybrid nanofluid flow past a porous Riga surface, considering the effects of Rosseland diffusion, chemical reactions, and internal volumetric heating.
Azad Hussain, Rabia Zetoon, Reeha Iqbal
wiley   +1 more source

A review on geothermal wells: Well integrity issues

Journal of Cleaner Production, 2020
Abstract Geothermal energy is an important potential and a strategic area for developing activities regarding renewable energy and future studies. It involves a great potential and a main role in the worldwide energy sector, particularly electricity generation.
openaire   +2 more sources

Numerical modelling of multiple standing column wells for heating and cooling buildings [PDF]

, 2009
A model for simulating clusters of standing column wells (SCWs) for use in geothermal heating and cooling systems is described in this paper. The model is three-dimensional, dynamic and solves the governing equations using a finite volume discretisation ...
Ng, Bobo, Underwood, Chris, Walker, Sara
core  

Hot and cold deserts as eco‐evolutionary arenas for understanding plant resistance to multiple abiotic stressors

Biological Reviews, EarlyView.
ABSTRACT During their long evolutionary history, land plants have evolved a range of adaptations to different abiotic stressors. These help explain present‐day diversity and distribution patterns, as well as the potential resilience of natural and agricultural systems to a changing climate. Most previous research has focused on adaptation to individual
Marc Fradera‐Soler, Natasha Barbolini, Anže Žerdoner Čalasan, Marian Schubert, Catarina Rydin, Olwen M. Grace, Aelys M. Humphreys   +6 more
wiley   +1 more source