A systemic view of potential environmental impacts of ocean energy production

2021 ◽  
Vol 149 ◽  
pp. 111332
Author(s):  
M.L. Martínez ◽  
G. Vázquez ◽  
O. Pérez-Maqueo ◽  
R. Silva ◽  
P. Moreno-Casasola ◽  
...  
Keyword(s):  
Environmental Impacts ◽  
Energy Production ◽  
Ocean Energy ◽  
Systemic View

Design and Potential Application of Small Scale Wave Energy Converter

2017 ◽  
Author(s):  
Tunde O. Aderinto ◽  
Francisco Haces-Fernandez ◽  
Hua Li
Keyword(s):  
Wave Energy ◽  
Energy Production ◽  
Energy Resource ◽  
Appropriate Technology ◽  
Wave Energy Converter ◽  
Small Scale ◽  
Ocean Energy ◽  
Energy Converter ◽  
Wave Energy Converters ◽  
Wave Properties

Although theoretical available wave energy is higher than most of ocean energy sources, the commercial utilization of wave energy is much slower than other ocean energy sources. The difficulty of integration with the electrical grid system and the challenges of the installation, operation and maintenance of large energy generation and transmission systems are the major reasons. Even though there are successfully tested models of wave energy converters, the fact that wave energy is directly affected by wave height and wave period makes the actual wave energy output with high variation and difficult to be predicted. And most of the previous studies on wave energy and its utilization have focused on the large scale energy production that can be integrated into a power grid system. In this paper, the authors identify and discuss stand-alone wave energy converter systems and facilities that are not connected to the electricity grid with focus on small scale wave energy systems as potential source of energy. For the proper identification, qualification and quantification of wave energy resource potential, wave properties such as wave height and period need to be characterized. This is used to properly determine and predict the probability of the occurrence of these wave properties at particular locations, which enables the choice of product design, installation, operation and maintenance to effectively capture wave energy. Meanwhile, the present technologies available for wave energy converters can be limited by location (offshore, nearshore or shoreline). Therefore, the potential applications of small scale stand-alone wave energy converter are influenced by the demand, location of the need and the appropriate technology to meet the identified needs. The paper discusses the identification of wave energy resource potentials, the location and appropriate technology suitable for small scale wave energy converter. Two simplified wave energy converter designs are created and simulated under real wave condition in order to estimate the energy production of each design.

Energy production through the contact of piezoelectric crystals, in a teaching institution in the City of Manaus- Amazonas

2020 ◽  
pp. 36144-36149
Keyword(s):  
Power Generation ◽  
Environmental Impacts ◽  
Energy Production ◽  
Lower Cost ◽  
Electric Energy ◽  
Teaching Institution ◽  
Piezoelectric Crystals ◽  
The World ◽  
Efficient Alternative ◽  
The City

Electric energy is responsible for several factors that keep us active and in communication with the rest of the world, where they present various ways of producing electric energy, including renewable energies. The most used type of energy is linked to non-renewable sources, causing numerous environmental impacts, other types can be described for power generation considering less consumption, greater stability, lower cost as in the case of piezoelectricity, which is still little used. However, it proves to be a highly efficient alternative, given the generation of energy by means of piezoelectric crystals, mechanically stimulated by pressure (scalar magnitude of mechanical condition, presented in physics), which proves to be an advantage given the types of production power.

scholarly journals Integrated analysis of land-use, energy and water systems for ethanol production from sugarcane in Bolivia

2020 ◽  
Author(s):  
Jenny Gabriela Pena Balderrama ◽  
Dilip Khatiwada ◽  
Francesco Gardumi ◽  
Thomas Alfstad ◽  
Silvia Ulloa Jimenez ◽  
...  
Keyword(s):  
Renewable Energy ◽  
Ethanol Production ◽  
Environmental Impacts ◽  
Energy Production ◽  
Economic Benefits ◽  
Environmental Benefits ◽  
Energy Output ◽  
Transport Sector ◽  
Integrated Analysis ◽  
Production Chain

Abstract The use of biomass for renewable energy production is one alternative to reduce the environmental impacts of energy production worldwide. Sugarcane-based ethanol is one of the most widespread biofuels in the road transport sector and its development has been encouraged by strong incentives on production and use in several countries. The growing realization on the environmental impacts of ethanol production indicates the need to increase the efficient utilization of biomass resources by optimizing the production chain sustainably. This paper evaluates enhancements in the ethanol production chain quantitatively by identifying opportunities for agricultural intensification and investments in advanced biorefineries in a least-cost optimization model. Results of our model show that significant cost and environmental benefits can be achieved by modernizing sugarcane agriculture in Bolivia. Demands for ethanol and sugar can be met cost-effectively by increasing sugarcane yields from the current country-average of 55.34 ton/ha to 85.7 ton/ha in 2030 with a moderate cropland expansion of 11.4 thousand hectares in the period 2019-2030. Our results further suggest that it is cost-optimal to invest in efficient cogeneration in biorefineries to maximize the renewable energy output and the economic benefits of sugarcane ethanol. Finally, biofuel support in the range of 8-10 US$/GJ is required for investments in second-generation ethanol in biorefineries to be cost-competitive in the medium-term..

scholarly journals Socio-Technical and Cultural Approaches to Energy Consumption: An Introduction

2014 ◽  
Vol 9 (2) ◽  
pp. 115-121 ◽  
Author(s):  
Ana Horta ◽  
Harold Wilhite ◽  
Luísa Schmidt ◽  
Françoise Bartiaux
Keyword(s):  
Economic Growth ◽  
Energy Consumption ◽  
Natural Resources ◽  
Environmental Impacts ◽  
Technological Progress ◽  
Energy Production ◽  
Energy Use ◽  
Nature And Culture ◽  
Industrialization Process

Energy consumption inconspicuously bridges nature and culture. Modern societies and cultures depend on intensive energy use from the extraction of natural resources. In fact, the industrialization process required large amounts of energy, but main sources such as oil and coal, have been gradually depleted and found to be heavily polluting the environment. Despite their environmental impacts, these resources have provided cheap and abundant power to fuel technological progress and economic growth. (See Agustoni and Maretti [2012] for a good historical summary of the relations between energy production and usages.)

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