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Evolution of Hydrate Dissociation by Warm Brine Stimulation Combined Depressurization in the South China Sea

Feng, Jing-Chun; Li, Gang; Li, Xiao-Sen; Li, Bo; Chen, … - In: Energies 6 (2013) 10, pp. 5402-5425

To evaluate the gas production performance of the hydrate accumulations in the South China Sea, a numerical simulation … investigated. The numerical simulation results indicate that the average gas production rate <i>Q</i><sub>avg</sub> is about 1 … the commercially viable production rate. The injected brine can be pumped out from the upper production well directly …

Persistent link: https://www.econbiz.de/10011031333

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

numerical weather predictions (NWP). A comparative study was carried out for the prediction of the power production of a wind …

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

Finite Element Method Modeling of Sensible Heat Thermal Energy Storage with Innovative Concretes and Comparative Analysis with Literature Benchmarks

Ferone, Claudio; Colangelo, Francesco; Frattini, Domenico; … - In: Energies 7 (2014) 8, pp. 5291-5316

Efficient systems for high performance buildings are required to improve the integration of renewable energy sources and to reduce primary energy consumption from fossil fuels. This paper is focused on sensible heat thermal energy storage (SHTES) systems using solid media and numerical...

Persistent link: https://www.econbiz.de/10010887128

Modeling and Analysis of Transport Processes and Efficiency of Combined SOFC and PEMFC Systems

Rabbani, Abid; Rokni, Masoud - In: Energies 7 (2014) 9, pp. 5502-5522

overall power production was increased by 8%–16% and the system efficiency with one of the fuels is found to be 12% higher …

Persistent link: https://www.econbiz.de/10010890186

Capacity Calculation of Shunt Active Power Filters for Electric Vehicle Charging Stations Based on Harmonic Parameter Estimation and Analytical Modeling

Zhou, Niancheng; Wang, Jiajia; Wang, Qianggang; Wei, … - In: Energies 7 (2014) 8, pp. 5425-5443

The influence of electric vehicle charging stations on power grid harmonics is becoming increasingly significant as their presence continues to grow. This paper studies the operational principles of the charging current in the continuous and discontinuous modes for a three-phase uncontrolled...

Persistent link: https://www.econbiz.de/10010890187

Fast Frequency Response Capability of Photovoltaic Power Plants: The Necessity of New Grid Requirements and Definitions

Rahmann, Claudia; Castillo, Alfredo - In: Energies 7 (2014) 10, pp. 6306-6322

In recent years, only a small number of publications have been presented addressing power system stability with the increased use of large-scale photovoltaic (PV) generation around the world. The focus of these publications was on classical stability problems, such as transient and small signal...

Persistent link: https://www.econbiz.de/10010945698

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