Application of nanoscience in alternative energies

2021 ◽  
pp. 543-563
Author(s):  
Ihsan Flayyih Hasan AI-Jawhari
Keyword(s):  
Alternative Energies

PROPOSAL FOR A PRACTICAL CLASSROOM IN THE EDUCATION OF ALTERNATIVE ENERGIES WITH A SMALL POWER WIND GENERATOR

2017 ◽  
Author(s):  
Stefany Kariny dos Santos de Souza Queiroz ◽  
Pedro Celestino Neto ◽  
Isac Barbosa de Almeida ◽  
Clayton Antonio de Oliveira ◽  
Idalmir de Souza Queiroz Júnior
Keyword(s):  
Small Power ◽  
Wind Generator ◽  
Alternative Energies

scholarly journals Strategic Analysis of the Automation of Container Port Terminals through BOT (Business Observation Tool)

Logistics ◽  
2020 ◽  
Vol 4 (1) ◽  
pp. 3 ◽  
Author(s):  
Alberto Camarero Orive ◽  
José Ignacio Parra Santiago ◽  
María Magdalena Esteban-Infantes Corral ◽  
Nicoletta González-Cancelas
Keyword(s):  
Information Technologies ◽  
Industrial Revolution ◽  
New Technologies ◽  
Functional Approach ◽  
Strategic Analysis ◽  
Container Port ◽  
Planning Tool ◽  
New Information ◽  
Port System ◽  
Alternative Energies

The port system is immersed in a process of digital transformation towards the concept of Ports 4.0, under the new regulatory and connectivity requirements that are expected of them. As a result of the changes that the industrial revolution 4.0 is imposing, based on new information technologies and the change of energy model, the electrification of modes of transport from alternative energies and the total digitalization of the processes is occurring. This conversion to digital, intelligent, and green ports requires the implementation of the new technologies offered by the market. The inclusion of these enabling tools has allowed the development of automated terminals under a functional approach. This article aims to offer the responsible entities a new methodology (BOT) that allows them to successfully undertake the automation of terminals, taking into account the reality of the conditions of the environment in which they are developed. By quantifying the factors that facilitate or impede implementation, it will be possible to determine the strategy to be followed and the necessary measures to be adopted in the project; constituting, therefore, a novel management and planning tool.

The United States and Alternative Energies since 1980: Technological Fix or Regime Change?

2014 ◽  
Vol 31 (5) ◽  
pp. 103-125 ◽  
Author(s):  
David E Nye
Keyword(s):  
United States ◽  
The United States ◽  
International Perspective ◽  
Carbon Intensity ◽  
Low Carbon ◽  
Actual Performance ◽  
Policy Failure ◽  
Technological Momentum ◽  
Alternative Energies ◽  
Kaya Identity

Awareness of global warming has been widespread for two decades, yet the American political system has been slow to respond. This essay examines, first, political explanations for policy failure, focusing at the federal level and outlining both short-term partisan and structural explanations for the stalemate. The second section surveys previous energy regimes and the transitions between them, and policy failure is explained by the logic of Thomas Hughes’s ‘technological momentum’. The third section moves to an international perspective, using the Kaya Identity and its distinction between energy intensity and carbon intensity to understand in policy terms ‘technological fixes’ vs. low-carbon alternatives. The final section reframes US energy policy failure and asks: (1) Why, between 1980 and 1999, was America’s actual performance in slowing CO2emissions better than its politics would seem capable of delivering? (2) How and why has the United States since c. 2007 managed to reduce per capita CO2emissions?

scholarly journals Aprovechamiento de residuos orgánicos para la generación de biogás

2019 ◽  
pp. 23-27
Author(s):  
Gabriel Garcia Magallanes ◽  
Marvin Osorio Canul ◽  
Angélica Herrera Lugo ◽  
Thelma Novelo-Moo
Keyword(s):  
Renewable Energy ◽  
Anaerobic Digestion ◽  
Geographical Area ◽  
Operating Conditions ◽  
Small Scale ◽  
High Level ◽  
Alternative Energies

In our country, information on renewable energy is widely dispersed and the level of contamination of stray animals; like dogs and cats, they pollute the air and cause diseases in the increase. This accumulation is generated by the disposition of the non-ideal places and the absence of handling of these residues. The problem grows in places where the number of canes increases such as streets, shelters and places of adoption, the rate of generation of canine hinas is much higher. A biodigester was built which produces biogas through anaerobic digestion from canine excrement with the aim of promoting alternative energies and thus reducing the high level of contamination and unhealthiness that crop feces by being exposed to outdoor. This biodigester allows small-scale tests with canine feces, since its operating conditions are contemplated in the geographical area.

scholarly journals How return sludge increase biogas production from cow manure?

2020 ◽  
Vol 181 ◽  
pp. 01006
Author(s):  
Ambar Pertiwiningrum ◽  
Ratih Kusuma Wardani ◽  
Joko Wintoko ◽  
Rachmawan Budiarto ◽  
Margaretha Arnita Wuri ◽  
...  
Keyword(s):  
Retention Time ◽  
Alternative Energy ◽  
Fossil Fuels ◽  
Biogas Production ◽  
Raw Material ◽  
Cow Manure ◽  
Fuel Price ◽  
Energy Needs ◽  
Methane Level ◽  
Alternative Energies

The energy needs in Indonesia are mainly fulfilled by fossil fuels based energy. Since there is the rise of fuel price, Indonesia government considers seeking alternative energies from renewable resources. Biogas becomes one of the alternative energy that supplies energy needs and manages cow manure waste in Indonesia. To increase adoption of biogas technology, biogas production through methane enrichment is required. The experiment was conducted with return sludge system. These instruments consist of a series portable bio-digester, gas holder and return sludge unit. There were three treatments on biogas production without and with sludge addition or re-use bio-digester sludge that produced after biogas production as raw material for next biogas production. Biogas that produced was observed every two days during 40 days. The results showed that the addition of bio-digester sludge increased biogas production and methane concentration. The optimum retention time of biogas production with sludge addition was 20 days with accumulation biogas volume of 156.38 liters or increased of 38.75 from biogas production without bio-digester sludge). The optimum retention time to increase methane level was 15 days with methane enrichment from 0.8% to 29.41%.

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