Yttria Nettings by Replica Processing

2014 ◽  
Vol 798-799 ◽  
pp. 687-690 ◽  
Author(s):  
Silas Cardoso Santos ◽  
C. Yamagata ◽  
W. Acchar ◽  
S.R.H. Mello-Castanho

In the context of green economy supported and widespread by United Nations (UN), the renewable energy sources are the unique mechanism to universalize the access to energy. Face to this strategic direction of change is essential to develop efficient components for saving energy such as porous ceramics that associate light with mechanical strength. Thus, the objective of this work concerns to improve the homogeneity of porous size distribution of yttria porous ceramics by evaluating their morphology during replica processing. Samples were subject to immersion into 30vol% yttria aqueous suspensions during an interval from 1min to 120min and sintered through careful thermal conditions. Based on the results, the weight and morphology of porous structure samples were directly influenced by immersion time, whereby intervals from 30-120min showed the best final products.

2021 ◽  
Vol 12 (3) ◽  
pp. 631
Author(s):  
Sergey BESPALYY

The growth of renewable energy sources (RES) shows the desire of the government of Kazakhstan to meet challenges that affect the welfare and development of the state. National targets, government programs, policies influence renewable energy strategies. In the future, renewable energy technologies will act as sources of a green economy and sustainable economic growth. The state policy in the field of energy in Kazakhstan is aimed at improving the conditions for the development and support of renewable energy sources, amendments are being made to provide for the holding of auctions for new RES projects, which replaces the previously existing system of fixed tariffs. It is expected that the costs of traditional power plants for the purchase of renewable energy will skyrocket, provided that the goals in the field of renewable generation are achieved. This article provides an assessment of international experience in supporting renewable energy sources, as well as analyzes the current situation in the development of renewable energy in Kazakhstan and the impact on sustainable development and popularization of the «green» economy. The study shows that by supporting the development of renewable energy sources, economic growth is possible, which is achieved in an environmentally sustainable way.


Author(s):  
S. Nikonorov ◽  
S. Tyaglov ◽  
K. Sitkina

In our study, from a theoretical and practical standpoint, the directions of green financing in various elements of the green economy were analyzed. In Russia, by the beginning of 2015, the portfolio of investment projects in the field of renewable energy sources amounted to more than 100 billion rubles. Until 2025, the Ministry of Natural Resources intends to attract about 3.5 trillion rubles in the development of renewable energy sources. In January 2019, the national project «Ecology» was approved in Russia, where 19.9% is government funding, the rest is a great potential for the development of green financing for all 11 Federal Projects, especially BAT. The article presents successful green finance projects in Russia and abroad.


2021 ◽  
Vol 250 ◽  
pp. 04004
Author(s):  
Natalya Novikova ◽  
Olesya Kharitonenko

In the article presented, the authors prove the objective need for the development of the electricity industry of the Republic of Crimea on the basis of the active use of the renewable energy sources, caused by the world processes of the formation of the “green” economy. The object of the study is the territory of the Republic of Crimea - a bright representative of the energy deficit region. The development of the electricity industry of the Republic of Crimea on the basis of the use of the renewable energy sources serves as the basis for ensuring regional energy security, the fragility of which was determined by the political events of 2015. The authors studied the research papers of leading domestic and foreign scientists devoted to the analysis of the renewable energy sources in order to justify the further active development of a wind energy, a solar energy as well as bioenergy and landfill gas energy in the Republic of Crimea. The development of the Republic of Crimea’s electricity industry through the use of the renewable energy sources and local fuels is an essential area of modern active regional policy. It is determined by the fact that this direction, firstly, is considered as environmentally friendly generation, and secondly, contributes to a qualitative increase in regional energy security level.


Green Finance ◽  
2019 ◽  
Vol 1 (2) ◽  
pp. 94-109 ◽  
Author(s):  
Biljana Ilić ◽  
◽  
Dragica Stojanovic ◽  
Gordana Djukic

2015 ◽  
Vol 4 (2) ◽  
pp. 36-41 ◽  
Author(s):  
Katalin Takács-György ◽  
Szilvia Domán ◽  
Antalné Tamus ◽  
Elena Horská ◽  
Zuzana Palková

Abstract Wider use of alternative energy sources is a real requirement of sustainable economy – not only from the point of view of limited natural resources –, and there is a question what is the knowledge, the attitude of young generation. As there is a strong connection between the use of renewable energy and sustainability, the issues must be examined together. On the other hand it can be observed that there is a tendency that people are becoming more open and inquiring towards renewable energy sources, and environment protection is considered as a very important task. The main goals of the research were to examine the knowledge of the young generation taking part in higher education on sustainability and alternative energy, and to find out their attitudes to the use of different alternative energy sources. Also, our hypotheses said that the level of knowledge of sustainability and their attitudes to the environment issues are connected. We compared the results of two surveys carried out in 2014 among the students of a Hungarian and a Slovak higher educational institute. According to the primary results it can be stated that the increasing environmental awareness of young generation is visible, although as for the concepts of sustainability and their knowledge on alternative energy sources, as well as their expectations for the future, there was no significant correlation between their opinions in the Hungarian sample. It was proved that they have open minds towards environmental consciousness, and follow the renewable energy sources with attention. A bit more than a half of the sample has real knowledge on sustainability – we mean the three-pillars model here –, more the mail interview has higher knowledge and for the future they thought the question as a very important one. Considerable majority of the respondents, compared to their capabilities, try to live environmentally-sound life, will do more than one thing to save their environment, although also some negative responses slightly appeared in the received results. Primary results of the Slovak sample are similar; respondents do similar measures for environment at their households as their Hungarian colleagues, but with different priority. Concerning the knowledge of concept of “green economy”, “blue economy” and the “non-growth”, it can be summarized that the awareness is evident but in many cases, there is just few information and weak knowledge connected with the terminology and practical consequences. We think it is an important task of education to increase the awareness of young people on sustainable energy use and to let them accustomed to the thought of green economy and non-growth theories, since the expansion of knowledge may help in the development of a more positive attitude, which will then, hopefully, encourage their actions in the future.


2021 ◽  
Vol 258 ◽  
pp. 06056
Author(s):  
Anton Shcherbak ◽  
Sergey Tishkov ◽  
Valentina Karginova-Gubinova

The article addresses the development of a green economy through the prism of renewable energy. Currently, interest in the development of renewable energy is growing dramatically, as evidenced by the highest growth of renewable energy among all energy sources in the world balance. The aim of this article is to carry out the quantitative assessment and to estimate economic potential from introduction of promising energy-saving and energy-efficient technologies, new energy sources. This paper considers the energy sector through the renewable energy sources, with a particular focus on the Barents region in view of its specific. The article gives a brief overview of the main types of renewable energy sources in this territory. The article is completed with the evaluation of the energy potential in Russian part of the Barents region.


2017 ◽  
Vol 1 (1) ◽  
pp. 36-50
Author(s):  
Gusman Siswandi

ABSTRACTAccording to the report of the Secretary-General of the United Nations, there are at least three benefits of marine renewable energy. From an environmental perspective, the utilization of marine renewable energy could reduce dependency upon conventional energy sources, especially the non-renewable ones. From an economic perspective, the renewable energy projects have developed significantly both in developed and developing countries. It was estimated that global investments in the renewable energy sector increased by 32% in 2010, reaching the total figure of $2.11 billion. Although there have not been any statistics available for marine renewable energy, this figure could provide an indication for the prospects of marine renewable energy in the future. This article aims to identify and to analyze legal aspects related to the utilization of marine renewable energy in Indonesia, particularly in the contexts of the law of the sea and the marine environment. Since marine renewable energy in Indonesia is still developing, it is necessary to ensure that all activities pertaining to the utilization of marine renewable energy resources are conducted in accordance with prevailing laws and regulations. In this regard, the 1982 United Nations Convention on the Law of the Sea (UNCLOS) is one of the main legal instruments that need to be considered by coastal States in utilizing marine renewable energy. This study finds that the current laws and policy in Indonesia are still inadequate to regulate the development of marine renewable energy. The National Energy Policy only provides a broad and general policy on renewable energy sources and does not cover a particular strategy on marine renewable energy. Thus, the Indonesian Government needs to establish a specific policy on marine renewable energy as well as specific laws and regulations to address the environmental impacts that may result from marine renewable energy activities. Keywords: marine renewable energy, law of the sea, marine energy, indonesian perspective. ABSTRAKBerdasarkan laporan dari Sekjen PBB, sekurang-kurangnya terdapat tiga keuntungan dari energi laut terbarukan. Dari perspektif lingkungan, pemanfaatan energi laut terbarukan dapat mengurangi ketergantungan terhadap energi konvensional, khususnya yang tidak terbarukan. Dari perspektif ekonomi, proyek energi terbarukan telah berkembang cukup signifikan, baik di negara berkembang maupun negara maju. Secara global, diperkirakan telah terdapat kenaikan investasi sebesar 32% di tahun 2010, hingga mencapai 2.11 miliar US Dolar. Meskipun belum ada statistik yang pasti, akan tetapiangka tersebut sudah menggambarkan prospek perkembangan energi terbarukan di masa yang akan datang. Artikel ini bertujuan untuk menganailisa aspek hukum yang berkaitan dengan pemanfaatan energi laut terbarukan di Indonesia, khususnya dalam konteks hukum laut dan lingkungan laut. Sejak energi laut terbarukan berkembang di Indonesia berkembang, sangatlah diperlukan agar pengeturan kegiatan tersebut sesuai dengan peraturan perundang-undangan. Berkenaan dengan ini, Konvensi Hukum Laut 1982 adalah salah satu dari intrumen hukum yang harus diperhatikan oleh negara pantai dalam menjalankan kegiatan pemanfaatan energi laut terbarukan. Kebijakan Energi Nasional hanya menyediakan kebijakan nasional yang sifatnya umum dalam pemanfaatan energi laut terbarukan. Dengan demikian Indonesia perlu membentuk kebijakan yang lebih spesifik berkenaan dengan pemanfaatan energi laut terbarukan, khususnya dampak lingkungan terhadap pemanfaatan energi laut terbarukan. Kata kunci: energi laut terbarukan, hukum laut, energi laut, sudut pandang indonesia


2014 ◽  
Vol 16 (4) ◽  
pp. 203-226 ◽  
Author(s):  
Zofia Wysokińska

The aim of the paper is to present selected aspects of sustainable development related to environmental protection and the creation of a green economy, with special reference to the global and European context for the development of an environmentally friendly goods and services market, taking into account the cases of Central and Eastern European countries. One of the most important elements of the strategy to promote clean economic growth and foster the transition to a more sustainable and greener economy is the energy sector, where the aim is to reduce greenhouse gas emissions and sulfur oxides and support the development of renewable energy sources. Some of the achieved results in this area are presented in this paper.


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