scholarly journals Correction: Up-scalable emerging energy conversion technologies enabled by 2D materials: from miniature power harvesters towards grid-connected energy systems

2021 ◽  
Author(s):  
Konstantinos Rogdakis ◽  
Nikolaos Karakostas ◽  
Emmanuel Kymakis
Keyword(s):  
Energy Conversion ◽  
2D Materials ◽  
Energy Systems ◽  
Conversion Technologies ◽  
Energy Environ

Correction for ‘Up-scalable emerging energy conversion technologies enabled by 2D materials: from miniature power harvesters towards grid-connected energy systems’ by Konstantinos Rogdakis et al., Energy Environ. Sci., 2021, DOI: 10.1039/d0ee04013d.

scholarly journals Up-scalable emerging energy conversion technologies enabled by 2D materials: From miniature power harvesters towards grid-connected energy systems

2021 ◽  
Author(s):  
Konstantinos ROGDAKIS ◽  
Nikolaos Karakostas ◽  
Emmanuel Kymakis
Keyword(s):  
Energy Conversion ◽  
High Throughput ◽  
Large Scale ◽  
2D Materials ◽  
Energy Systems ◽  
Conversion Technologies

Breakthrough discoveries in high-throughput formulation of abundant materials and advanced engineering approaches are both in utter need as prerequisites for developing novel large-scale energy conversion technologies required to address our...

scholarly journals Dominant Wave Energy Systems and Conditional Wave Resource Characterization for Coastal Waters of the United States

Energies ◽  
2020 ◽  
Vol 13 (12) ◽  
pp. 3041 ◽  
Author(s):  
Seongho Ahn ◽  
Kevin A. Haas ◽  
Vincent S. Neary
Keyword(s):  
United States ◽  
Energy Conversion ◽  
Wave Energy ◽  
Coastal Waters ◽  
Energy Systems ◽  
The United States ◽  
Wave Energy Conversion ◽  
Peak Period ◽  
Dominant Wave ◽  
Conversion Technologies

Opportunities and constraints for wave energy conversion technologies and projects are evaluated by identifying and characterizing the dominant wave energy systems for United States (US) coastal waters using marginal and joint distributions of the wave energy in terms of the peak period, wave direction, and month. These distributions are computed using partitioned wave parameters generated from a 30 year WaveWatch III model hindcast, and regionally averaged to identify the dominant wave systems contributing to the total annual available energy ( A A E ) for eleven distinct US wave energy climate regions. These dominant wave systems are linked to the wind systems driving their generation and propagation. In addition, conditional resource parameters characterizing peak period spread, directional spread, and seasonal variability, which consider dependencies of the peak period, direction, and month, are introduced to augment characterization methods recommended by international standards. These conditional resource parameters reveal information that supports project planning, conceptual design, and operation and maintenance. The present study shows that wave energy resources for the United States are dominated by long-period North Pacific swells (Alaska, West Coast, Hawaii), short-period trade winds and nor’easter swells (East Coast, Puerto Rico), and wind seas (Gulf of Mexico). Seasonality, peak period spread, and directional spread of these dominant wave systems are characterized to assess regional opportunities and constraints for wave energy conversion technologies targeting the dominant wave systems.

scholarly journals Tribological design constraints of marine renewable energy systems

2010 ◽  
Vol 368 (1929) ◽  
pp. 4807-4827 ◽  
Author(s):  
Robert J. K. Wood ◽  
AbuBakr S. Bahaj ◽  
Stephen R. Turnock ◽  
Ling Wang ◽  
Martin Evans
Keyword(s):  
Renewable Energy ◽  
Energy Conversion ◽  
Energy Systems ◽  
Offshore Wind ◽  
Marine Renewable Energy ◽  
Energy Demands ◽  
Marine Energy ◽  
Energy Conversion Systems ◽  
Tidal Streams ◽  
Conversion Technologies

Against the backdrop of increasing energy demands, the threat of climate change and dwindling fuel reserves, finding reliable, diverse, sustainable/renewable, affordable energy resources has become a priority for many countries. Marine energy conversion systems are at the forefront of providing such a resource. Most marine renewable energy conversion systems require tribological components to convert wind or tidal streams to rotational motion for generating electricity while wave machines typically use oscillating hinge or piston within cylinder geometries to promote reciprocating linear motion. This paper looks at the tribology of three green marine energy systems, offshore wind, tidal and wave machines. Areas covered include lubrication and contamination, bearing and gearbox issues, biofouling, cavitation erosion, tribocorrosion, condition monitoring as well as design trends and loading conditions associated with tribological components. Current research thrusts are highlighted along with areas needing research as well as addressing present-day issues related to the tribology of offshore energy conversion technologies.

scholarly journals Coarse typological studies on urban program and density defined by various urban energy conversion technologies in Singapore

2017 ◽  
Author(s):  
Zhongming Shi ◽  
Shanshan Hsieh ◽  
Bhargava Krishna Sreepathi ◽  
Jimeno A. Fonseca ◽  
François Maréchal ◽  
...  
Keyword(s):  
Energy Conversion ◽  
Urban Area ◽  
Urban Form ◽  
Energy Demand ◽  
Energy Systems ◽  
Energy Performance ◽  
Energy Technologies ◽  
New Energy ◽  
Urban Energy ◽  
Conversion Technologies

Coarse typological studies on urban program and density defined by various urban energy conversion technologies in Singapore.  Zhongming Shi1,2, Shanshan Hsieh1,2,3, Bhargava Krishna Sreepathi1,2, Jimeno A. Fonseca1,2, François Maréchal1,3, Arno Schlueter1,2 1 Future Cities Laboratory, Singapore-ETH Centre, 1 Create Way, CREATE Tower, 138602 Singapore 2 Architecture and Building Systems, Institute of Technology in Architecture, ETH Zurich, John-von-Neumann-Weg 9, CH-8093 Zurich, Switzerland 3 Industrial Process and Energy Systems Engineering Group, Ecole Polytechnique Federale de Lausanne, Lausanne 1015, Switzerland E-mail: [email protected], [email protected], [email protected], [email protected], [email protected], [email protected], [email protected]   Keywords: Urban typology, urban form, energy technology, urban program, density   Conference topics and scale: Efficient use of resources in sustainable cities   Cities consume about three quarters of global primary energy. Compared to the beginning of the Twentieth Century, the urban area is expected to triple by 2030. The future urban energy performance is substantially influenced by how the urban area is planned, designed, and built. New energy technologies have enabled new possibilities of the urban form. For example, a district cooling system can free the building rooftops for more architectural design options, like an infinity pool or a sky garden. Vice versa, to maximize the energy performance, some new energy technologies enforce some specific requirements on the urban forms, like the urban form and density. We apply a Mixed Integer Linear Programming (MILP) formulation to identify the optimal allocation of energy demand density and energy systems (e.g. district cooling network) subject to resource availability and energy (or environmental) performance targets (e.g. renewable share). The optimized energy demand density can be translated into urban program combinations and density ranges and gradients. To build the model, we survey the prevailing energy conversion technologies and their costs. Based on the local standards of Singapore, we derive the energy profiles and demand densities of buildings with different programs. We adopt a real case study in Singapore to test the target energy technologies. Adjacent to the existing central business district, the site, currently a container terminal, has an area around 1,000 hectares. Upon the relocation of the terminal in 10 years, the energy technologies, the density, and the program of the site have a variety of possibilities.   This paper builds a series of coarse urban typologies in terms of urban program and density when adopting different urban energy conversion technologies in Singapore. Furthermore, the general density and the density gradient may vary when the size of these energy infrastructures alters. In an integrated urban design process involving energy considerations, the urban designer can refer these urban typologies for rules on the general density, the density gradient, and the urban program combination based on the selected energy technologies. On the other way, these urban typologies can also help on the selection of energy technologies to accommodate the target urban density and program.   References (100 words) Ratti, C., Baker, N., and Steemers, K. (2005). Energy consumption and urban texture. Energy Build. 37, 762–776. Salat, S. (2009). Energy loads, CO2 emissions and building stocks: morphologies, typologies, energy systems and behaviour. Build. Res. Inf. 37, 598–609. Seto, K.C., Güneralp, B., and Hutyra, L.R. (2012). Global forecasts of urban expansion to 2030 and direct impacts on biodiversity and carbon pools. Proc. Natl. Acad. Sci. U. S. A. 109, 16083–16088. UN-Habitat (2012). Energy. [Online]. Available: http://unhabitat.org/urban-themes/energy. [Accessed:08-Nov-2016].           

Controllable Synthesis of Ultrathin Layered Transition Metallic Hydroxide/Zeolitic Imidazolate Framework-67 Hybrid Nanosheets for High-Performance Supercapacitors

2021 ◽  
Author(s):  
Chunli Liu ◽  
Yang Bai ◽  
Ji Wang ◽  
Ziming Qiu ◽  
Huan Pang
Keyword(s):  
Charge Transfer ◽  
Energy Conversion ◽  
High Performance ◽  
2D Materials ◽  
Two Dimensional ◽  
Controllable Synthesis ◽  
Zeolitic Imidazolate Framework ◽  
Fast Charge ◽  
Energy Conversion And Storage ◽  
And Storage

Two-dimensional (2D) materials with structures having diverse features are promising for application in energy conversion and storage. A stronger layered orientation can guarantee fast charge transfer along the 2D planes...

Embedding molecular photosensitizers and catalysts in nanoporous block copolymer membranes for visible-light driven hydrogen evolution

2020 ◽  
Vol 8 (13) ◽  
pp. 6238-6244 ◽  
Author(s):  
Iuliia Romanenko ◽  
Ashwene Rajagopal ◽  
Christof Neumann ◽  
Andrey Turchanin ◽  
Carsten Streb ◽  
...  
Keyword(s):  
Block Copolymer ◽  
Visible Light ◽  
Energy Conversion ◽  
Hydrogen Evolution ◽  
Soft Matter ◽  
Great Promise ◽  
Visible Light Driven ◽  
Conversion Technologies

The integration of molecular photosensitizers and catalysts into functional soft matter supports holds great promise for future energy conversion technologies.

Potential Impacts of Hydrokinetic and Wave Energy Conversion Technologies on Aquatic Environments

Fisheries ◽  
2007 ◽  
Vol 32 (4) ◽  
pp. 174-181 ◽  
Author(s):  
Glenn Cada ◽  
James Ahlgrimm ◽  
Michael Bahleda ◽  
Tom Bigford ◽  
Stefanie Damiani Stavrakas ◽  
...  
Keyword(s):  
Energy Conversion ◽  
Wave Energy ◽  
Aquatic Environments ◽  
Wave Energy Conversion ◽  
Conversion Technologies

scholarly journals Advanced Energy Conversion Technologies. Proposal and Fundamental Demonstration of Chemical Gas Turbine System.

2000 ◽  
Vol 26 (2) ◽  
pp. 251-256 ◽  
Author(s):  
TSUYOSHI YAMAMOTO ◽  
TAKESHI KACHI ◽  
YUICHIROU SUGIYAMA ◽  
KOJI SAKAKIBARA ◽  
TOMOHIKO FURUHATA ◽  
...  
Keyword(s):  
Energy Conversion ◽  
Gas Turbine ◽  
Conversion Technologies

Hollow mesoporous carbon nanocages with Fe isolated single atomic site derived from MOF/polymer for highly efficient electrocatalytic oxygen reduction

2021 ◽  
Author(s):  
Kai Zhang ◽  
Bai Yang ◽  
Congcong Wang ◽  
Yixin Chen ◽  
Ying Liu ◽  
...  
Keyword(s):  
Oxygen Reduction Reaction ◽  
Energy Conversion ◽  
Oxygen Reduction ◽  
Mesoporous Carbon ◽  
Reduction Reaction ◽  
Atomic Site ◽  
Highly Efficient ◽  
Electrocatalytic Oxygen Reduction ◽  
Conversion Technologies

Exploring sustainable and highly activity electrocatalysts for the oxygen reduction reaction (ORR) is vital for the development and application of energy conversion technologies. Here, we prepared Fe isolated-single atomic-site (ISAs)...

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