ORAL
SESSION: AdvancedMaterialsThuAM-R6 | Marquis International Symposium on New and Advanced Materials and Technologies for Energy, Environment and Sustainable Development(3rd Intl Symp. on New and Advanced Materials and Technologies for Energy, Environment and Sustainable Development) |
Thu Oct, 26 2017 | Room: Condesa IA |
Session Chairs: Nikoloz Chikhradze; Fernando Castro; Session Monitor: TBA |
11:30: [AdvancedMaterialsThuAM02]
Advantages, Challenges and Opportunities of Wind Power Systems Fernand
Marquis1 ;
Nikoloz
Chikhradze2 ;
A.g.
Mamalis3 ;
1San Diego State University, Department of Mechanical Engineering, San Diego, United States;
2LEPL Grigol Tsulukidze Mining Institute/Georgian Technical University, Tbilisi, Georgia;
3Demokritos National Center for Scientific Research, Athens, Greece;
Paper Id: 82
[Abstract] The wind power available on the Earth atmosphere is much larger then the current world power consumption. Its potential on land and near shore is believe to exceed 72 TW. This is equivalent to 54 millions of tons of oil per year, or over five times the total combined world power from all sources. In addition, wind power is clean and renewable without any form of emissions or residues and it does not involve the depletion of any form of fuel. The growth in new capacity has exceeded 30 percent over the last five years and is expected to continue and/or exceed this trend for many years to come. This means that the wind power industry is currently experiencing a very rapid development stage but is far from reaching its mature stage. Wind power systems have many advantages, although currently experience significant challenges and considerable opportunities with an extraordinary potential for a major power source and considerable contributions to sustainable development. The potential negative environmental impacts are very few but not in depth such as noise and potential disturbance in landscape, fauna and flora. Advances in power grid characteristics and recharging technology have been and are expected to continue to be considerable enablers. This paper discusses typical advantages, challenges and opportunities in mechanical and materials design and manufacture with particular focus on the potential of nano materials and hybrid materials for application in new environments and geographic locations both land and offshore-based.
SESSION: AdvancedMaterialsThuAM-R7 | Marquis International Symposium on New and Advanced Materials and Technologies for Energy, Environment and Sustainable Development(3rd Intl Symp. on New and Advanced Materials and Technologies for Energy, Environment and Sustainable Development) |
Thu Oct, 26 2017 | Room: Condesa IB |
Session Chairs: Ryuichi Tomoshige; A.G. Mamalis; Session Monitor: TBA |
11:00: [AdvancedMaterialsThuAM01] Keynote
Trends and Developments in Advanced Manufacturing from Macro- to Nanoscale A.g.
Mamalis1 ;
1Demokritos National Center for Scientific Research, Athens, Greece;
Paper Id: 133
[Abstract] In manufacturing technology six main elements may be identified, with the central one being the enforced deformation to the material, i.e. the processing itself, brought about under consideration of the interface between tool and work piece, introducing interdisciplinary features for lubrication and friction, tool materials properties and the surface integrity of the component. The as-received material structure is seriously altered through the deformation processing, therefore, materials testing and quality control before and after processing are predominantly the areas of interest to the materials scientist. The performance of the machine tools together with the tool design are very important, whilst, in today's computer age, the techno-economic aspects, like the notion of manufacturing systems regarding automation, modeling and simulation, rapid prototyping, process planning and computer integrated manufacturing, energy conservation and recycling as well as environmental aspects are important in manufacturing engineering. The quality of manufactured parts is mainly determined by their dimensional and shape accuracy, the surface integrity, and the functional properties of the products. The development of manufacture engineering is related to the tendency to miniaturization and is accompanied by the continuous increasing of the accuracy of the manufactured parts. Note that, the two main trends towards a miniaturization of products are the ultra precision and the nanotechnology processing. The former is carried out by machine tools with very high accuracy, while the latter is defined as the fabrication of devices with atomic or molecular scale precision by employing new advanced energy beam processes that allow for atom manipulation. Therefore, the design and manufacture of the nanostructured materials (carbon nanotubes and nanoparticles), having every atom or molecule in a designated location and exhibiting novel and significantly improved optical, chemical, mechanical and electrical properties, are made possible. Recent trends and developments in advanced manufacturing from macro- to nanoscale in the important engineering involve topics from industrial, research and academic point of view. Some of these topics are: nanotechnology/ultra precision engineering and advanced materials under low/high speed impact and shock loading, with industrial applications to net-shape manufacturing, bioengineering, energy and transport. As an outcome of the very extensive work over 40 years on these fields performed by the author and his research international team, these topics are presented and discussed in the present Keynote Lecture of the SIPS 2017 3rd International Symposium on New and Advanced Materials and Technologies for Energy, Environment and Sustainable Development.