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Molecular Dynamics Simulations of Clathrate Hydrates on Specialised Hardware Platforms

Varini, Nicola; English, Niall J.; Trott, Christian R. - In: Energies 5 (2012) 9, pp. 3526-3533

Classical equilibrium molecular dynamics (MD) simulations have been performed to investigate the computational performance of the Simple Point Charge (SPC) and TIP4P water models applied to simulation of methane hydrates, and also of liquid water, on a variety of specialised hardware platforms,...

Persistent link: https://www.econbiz.de/10010675990

Perspectives on Hydrate Thermal Conductivity

English, Niall J.; Tse, John S. - In: Energies 3 (2010) 12, pp. 1934-1942

In this review, the intriguing, anomalous behaviour of hydrate thermal conductivity will be described, and progress in …

Persistent link: https://www.econbiz.de/10010676071

Methane Flux and Authigenic Carbonate in Shallow Sediments Overlying Methane Hydrate Bearing Strata in Alaminos Canyon, Gulf of Mexico

Smith, Joseph P.; Coffin, Richard B. - In: Energies 7 (2014) 9, pp. 6118-6141

-derived carbon in shallow sediments overlying the hydrate bearing strata. When integrated with stable carbon isotope ratios of DIC … overlying hydrate bearing strata like those in Alaminos Canyon is critical to quantifying methane flux and estimating methane … hydrate distributions in gas hydrate bearing marine sediments. …

Persistent link: https://www.econbiz.de/10010945710

Hydrate Formation/Dissociation in (Natural Gas + Water + Diesel Oil) Emulsion Systems

Xiang, Chang-Sheng; Peng, Bao-Zi; Liu, Huang; Sun, Chang-Yu - In: Energies 6 (2013) 2, pp. 1009-1022

Hydrate formation/dissociation of natural gas in (diesel oil + water) emulsion systems containing 3 wt% anti … linearly with the increase of pressure, and decreases with the increase of water cut. There exists an initial slow hydrate … formation stage for systems with lower water cut, while rapid hydrate formation takes place and the process of the gas …

Persistent link: https://www.econbiz.de/10010676056

Direct Observation of THF Hydrate Formation in Porous Microstructure Using Magnetic Resonance Imaging

Xue, Kaihua; Zhao, Jiafei; Song, Yongchen; Liu, Weiguo; … - In: Energies 5 (2012) 4, pp. 898-910

The porous microstructure of hydrates governs the mechanical strength of the hydrate-bearing sediment. To investigate … the growth law and microstructure of hydrates in porous media, the growth process of tetrahydrofuran (THF) hydrate under … THF hydrate grows as different models under different concentration of THF solution (19%, 11.4% and 5.7% by weight) at 1 …

Persistent link: https://www.econbiz.de/10011030978

Circuit Simulation for Solar Power Maximum Power Point Tracking with Different Buck-Boost Converter Topologies

Shiau, Jaw-Kuen; Lee, Min-Yi; Wei, Yu-Chen; Chen, Bo-Chih - In: Energies 7 (2014) 8, pp. 5027-5046

The power converter is one of the essential elements for effective use of renewable power sources. This paper focuses on the development of a circuit simulation model for maximum power point tracking (MPPT) evaluation of solar power that involves using different buck-boost power converter...

Persistent link: https://www.econbiz.de/10010884951

Geophysical Methods for Monitoring Temperature Changes in Shallow Low Enthalpy Geothermal Systems

Hermans, Thomas; Nguyen, Frédéric; Robert, Tanguy; … - In: Energies 7 (2014) 8, pp. 5083-5118

Low enthalpy geothermal systems exploited with ground source heat pumps or groundwater heat pumps present many advantages within the context of sustainable energy use. Designing, monitoring and controlling such systems requires the measurement of spatially distributed temperature fields and the...

Persistent link: https://www.econbiz.de/10010885348

Shadow Replication: An Energy-Aware, Fault-Tolerant Computational Model for Green Cloud Computing

Cui, Xiaolong; Mills, Bryan; Znati, Taieb; Melhem, Rami - In: Energies 7 (2014) 8, pp. 5151-5176

As the demand for cloud computing continues to increase, cloud service providers face the daunting challenge to meet the negotiated SLA agreement, in terms of reliability and timely performance, while achieving cost-effectiveness. This challenge is increasingly compounded by the increasing...

Persistent link: https://www.econbiz.de/10010886252

Comparison Between Wind Power Prediction Models Based on Wavelet Decomposition with Least-Squares Support Vector Machine (LS-SVM) and Artificial Neural Network (ANN)

Giorgi, Maria Grazia De; Campilongo, Stefano; … - In: Energies 7 (2014) 8, pp. 5251-5272

A high penetration of wind energy into the electricity market requires a parallel development of efficient wind power forecasting models. Different hybrid forecasting methods were applied to wind power prediction, using historical data and numerical weather predictions (NWP). A comparative study...

Persistent link: https://www.econbiz.de/10010886253

Dialectic Form Finding of Passive and Adaptive Shading Enclosures

Adriaenssens, Sigrid; Rhode-Barbarigos, Landolf; … - In: Energies 7 (2014) 8, pp. 5201-5220

Form finding describes the process of finding a stable equilibrium shape for a system under a specific set of loads, for a set of boundary conditions and starting from an arbitrary initial geometry. However, form finding does not traditionally involve performance constraints such as...

Persistent link: https://www.econbiz.de/10010886254

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