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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

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

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

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

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

Massively-Parallel Molecular Dynamics Simulation of Clathrate Hydrates on Blue Gene Platforms

English, Niall J. - In: Energies 6 (2013) 6, pp. 3072-3081

Massively-parallel classical equilibrium molecular dynamics (MD) simulations have been performed to investigate the computational performance of the Simple Point Charge (SPC) model and single-particle model of Molinero <i>et al.</i> applied to simulation of methane hydrates, using systems consisting of...

Persistent link: https://www.econbiz.de/10011031213

Optimizing Capacities of Distributed Generation and Energy Storage in a Small Autonomous Power System Considering Uncertainty in Renewables

Hong, Ying-Yi; Lai, Yuan-Ming; Chang, Yung-Ruei; Lee, … - In: Energies 8 (2015) 4, pp. 2473-2492

This paper explores real power generation planning, considering distributed generation resources and energy storage in a small standalone power system. On account of the Kyoto Protocol and Copenhagen Accord, wind and photovoltaic (PV) powers are considered as clean and renewable energies. In...

Persistent link: https://www.econbiz.de/10011213909

Multi-Objective Optimization Design for a Hybrid Energy System Using the Genetic Algorithm

Ko, Myeong Jin; Kim, Yong Shik; Chung, Min Hee; Jeon, … - In: Energies 8 (2015) 4, pp. 2924-2949

To secure a stable energy supply and bring renewable energy to buildings within a reasonable cost range, a hybrid energy system (HES) that integrates both fossil fuel energy systems (FFESs) and new and renewable energy systems (NRESs) needs to be designed and applied. This paper presents a...

Persistent link: https://www.econbiz.de/10011261290

Dynamic Feasible Region Genetic Algorithm for Optimal Operation of a Multi-Reservoir System

Xu, Bin; Zhong, Ping-An; Wan, Xinyu; Zhang, Weiguo; … - In: Energies 5 (2012) 8, pp. 2894-2910

Seeking the optimal strategy of a multi-reservoir system is an important approach to develop hydropower energy, in which the Genetic Algorithm (GA) is commonly used as an effective tool. However, when the traditional GA is applied in solving the problem, the constraints of water balance...

Persistent link: https://www.econbiz.de/10010675987

Model Predictive Control-Based Fast Charging for Vehicular Batteries

Yan, Jingyu; Xu, Guoqing; Qian, Huihuan; Xu, Yangsheng; … - In: Energies 4 (2011) 8, pp. 1178-1196

Battery fast charging is one of the most significant and difficult techniques affecting the commercialization of electric vehicles (EVs). In this paper, we propose a fast charge framework based on model predictive control, with the aim of simultaneously reducing the charge duration, which...

Persistent link: https://www.econbiz.de/10010676008