Multiphysics Design and Development of Heterogeneous Functional Materials for Renewable Energy Devices: The HeteroFoaM Story

2013 ◽  
Vol 160 (4) ◽  
pp. F470-F481 ◽  
Author(s):  
K. L. Reifsnider ◽  
Wilson K. S. Chiu ◽  
Kyle S. Brinkman ◽  
Yanhai Du ◽  
Arata Nakajo ◽  
...  
2021 ◽  
pp. 014459872110036
Author(s):  
Moses E Emetere ◽  
O Agubo ◽  
L Chikwendu

This paper examines a broad spectrum of challenges plaguing electric power supply in Africa. The challenges have lingered very long that policymakers, energy companies, and government agencies have shown docility in tackling the problem headlong. The increasing human population and technological innovations are evidence that the more the problem lingers, the more it becomes insurmountable. In this paper, it was proposed the lingering challenges can be solved using the standalone system of power generation. The renewable energy option and its adaptability were highlighted to guide standalone users on the way forward. The growing population in Africa can be advantageous in generating biogas from human feaces. It was discovered that renewable energy devices are quite expensive; hence, the biogas option for cooking and powering gas generators seem to be sustainable as its technology can be modified to suit the users' financial base. Therefore, it is projected that if the human excretal biogas can be adopted, Africa will soon overcome its energy crisis through the doggedness of its standalone users.


Marine Policy ◽  
2009 ◽  
Vol 33 (4) ◽  
pp. 635-642 ◽  
Author(s):  
Mark A. Shields ◽  
Lora Jane Dillon ◽  
David K. Woolf ◽  
Alex T. Ford

Author(s):  
Teodora Stoyanova Lyubenova ◽  
Rafael Martí Valls ◽  
Diego Fraga Chiva ◽  
Ester Barrachina Albert ◽  
Ivan Calvet Roures ◽  
...  

Energies ◽  
2020 ◽  
Vol 13 (17) ◽  
pp. 4509 ◽  
Author(s):  
Janusz Adamczyk ◽  
Robert Dylewski

Energy saving is at the heart of sustainable development in the context of climate change. Saving energy is not only the amount of energy that we save, but also reducing emissions of pollutants to the atmosphere, as well as reducing the consumption of energy resources that are used to produce energy. Reducing pollutant emissions and the use of energy resources can be achieved by increasing the use of renewable energy sources, but at present, this method of obtaining energy in the world is not representative. It should be noted that renewable energy devices throughout the life cycle generate environmental impact. Similar to this situation, the building’s thermo-modernization, which is focused on reducing the pressure on the environment of the building’s user, also has an impact on the environment throughout the building’s life cycle. Determining this environmental impact and ecological or economic benefits or costs is the purpose of the following article. Thermo-modernization of the building, for the purposes of the article, is understood as thermal insulation of walls and replacement of the heat source for heating the building and preparation of hot utility water. The need to replace the heat source with a much more ecological one results in Poland from provincial legal regulations announced by virtue of a resolution. In the study, data from the Ecoinvent data library included in the SimaPro computer program was used for the LCA (Life Cycle Assessment) analysis. As a result of thermo-modernization of the representative buildings, large ecological benefits were obtained, while economic costs remain at a high level.


Author(s):  
V. Jaksic ◽  
C. S. Wright ◽  
J. Murphy ◽  
C. Afeef ◽  
S. F. Ali ◽  
...  

In this paper, we experimentally study and compare the effects of three combinations of multiple tuned liquid column dampers (MTLCDs) on the dynamic performance of a model floating tension-leg platform (TLP) structure in a wave basin. The structural stability and safety of the floating structure during operation and maintenance is of concern for the performance of a renewable energy device that it might be supporting. The dynamic responses of the structure should thus be limited for these renewable energy devices to perform as intended. This issue is particularly important during the operation of a TLP in extreme weather conditions. Tuned liquid column dampers (TLCDs) can use the power of sloshing water to reduce surge motions of a floating TLP exposed to wind and waves. This paper demonstrates the potential of MTLCDs in reducing dynamic responses of a scaled TLP model through an experimental study. The potential of using output-only statistical markers for monitoring changes in structural conditions is also investigated through the application of a delay vector variance (DVV) marker for different conditions of control for the experiments.


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