scholarly journals Efeitos da Expansão do Biodiesel e da Troca de Fontes Triglicerídeas no Cenário Energético Brasileiro

2019 ◽  
Vol 17 (2) ◽  
pp. 87-99
Author(s):  
Gerd Brantes Angelkorte
Keyword(s):  
Global Warming ◽  
Water Consumption ◽  
Raw Material ◽  
Energy Sources ◽  
Production Cycle ◽  
World Population ◽  
Emission Data ◽  
The World ◽  
New Energy ◽  
Plant Sources

The concern with global warming impacts on the environment has made the world population search for new energy sources that are less aggressive to the environment. Therefore, biodiesel has become more relevant and has expanded its proportion in the blend with diesel. However, Brazil still uses about 20% of bovine tallow, which emits large amount of GHG, degrades the soil and entails great water consumption. The purpose of this study was to evaluate the possibilities and effects of the substitution of this nonrenewable source for others of vegetable origin, as well as the environmental effects of increasing the percentage of biodiesel, reaching levels of 20% and 30%. Hence, two types of biodiesel were produced and tested, with and without bovine tallow, and the results obtained and data from the diesel fleet were used to model the impacts and CO2eq emissions with the aid of the MoMo Lite model in Brazil. It was possible to determine the great benefit of adopting higher levels of biodiesel in diesel (especially when there was a substitution of bovine tallow for plant sources), besides the importance of adopting broader analysis of the whole production cycle of the raw material. Since only CO2eq emission data were observed at the burning, the results varied only 10%, but when the results were analyzed through the well-to-tank, this variation rose to 52%.

scholarly journals Catalysts for Biodiesel Production: A Review

2021 ◽  
Vol 33 (9) ◽  
pp. 1985-1999
Author(s):  
K.A.V. Miyuranga ◽  
D. Thilakarathne ◽  
Udara S.P.R. Arachchige ◽  
R.A. Jayasinghe ◽  
N.A. Weerasekara
Keyword(s):  
Energy Demand ◽  
Fossil Fuels ◽  
Reaction Rate ◽  
Fossil Fuel ◽  
Sustainable Energy ◽  
Biodiesel Production ◽  
Energy Sources ◽  
World Population ◽  
Economic Issues ◽  
The World

As the world population and modernization increase, energy demand increases. One of the non-sustainable energy sources is fossil fuels. However, fossil fuel consumption raises various environmental and economic issues. Most of the studies focus on sustainable energy sources, which can replace fossil fuel dependence. Biodiesel is an alternative sustainable fuel for diesel power. Biodiesel can produce through the transesterification process. Since the catalyst plays a significant role in the biodiesel yield during a defined reaction time, the addition of a catalyst can increases the reaction rate. This article is outlined the several catalysts used by multiple researchers over the years to increase biodiesel yields.

scholarly journals Perspectives of energetic exports of Russia in terms of development of the renewable energy sources

2021 ◽  
Vol 296 ◽  
pp. 01007
Author(s):  
Elena Andreeva ◽  
Alla Golovina ◽  
Victoria Zakharova
Keyword(s):  
Renewable Energy ◽  
Natural Gas ◽  
Energy Supply ◽  
Renewable Energy Sources ◽  
Green Energy ◽  
Energy Carrier ◽  
Energy Sources ◽  
Energy Carriers ◽  
The World ◽  
New Energy

The changes in the sphere of the main energy sources in the world and in individual countries were highlighted; the prospects for Russian energy carriers in the global hydrocarbon market were identified. The demand for an energy carrier whose use in Germany is planned to be discontinued (coal) and the demand and competition for natural gas - Russian energy carrier that remains competitive in the conditions of “green” energy were analyzed. The Russian opportunity to save the energy supply market on the background of the new energy order are considered.

scholarly journals Medicinal and Aromatic plants: “Natural bio-chemicals and medicine factories”

2021 ◽  
Vol 17 (2) ◽  
pp. 691-698
Author(s):  
Vandana ◽  
Rajesh Lather ◽  
Sridevi Tallapragada ◽  
Gurnam Singh
Keyword(s):  
Medicinal Plants ◽  
Plant Material ◽  
Herbal Medicines ◽  
Raw Material ◽  
World Health ◽  
World Population ◽  
Special Role ◽  
Aromatic Plants ◽  
Medicinal And Aromatic Plants ◽  
The World

Since thousands years back approximately around 900 BC, medicinal plants are considered as a source of many biomolecules with therapeutic potential. Herbal medicines are considered as safer, better, physiologically compatible and costeffective. The oldest evidence of medicinal and aromatic plants depicts that with the emergence of human civilization, plants have been considered as the main source to heal and cure various serious ailments. It has been proven that the secondary metabolites e.g. alkaloid, glycosides, flavonoides, steroids etc present in the medicinal plants possesses ability to prevent occurrence of some of the diseases, means medicinal plants acts as a “preventive medicine”. Medicinal plants have a paramount importance and a great interest due to its pharmaceutical, cosmetic and nutritional values. Some plants are also considered as an important source of nutrition and are known to have a variety of compounds with potential therapeutic properties. India is the principal repository of large number of medicinal and aromatic plants or we can say India is one of the rich mega-biodiversity countries of the world. Medicinal plants are “backbone” of traditional medicinal system (TMS). Crude drugs are usually dried parts of medicinal and aromatic plants (MAPs) such as roots, stems, wood, bark, seeds, fruits, flowers, leaves, rhizomes, whole plant etc. that form the essential raw material for the production of medicines in various systems of Ayurveda, Siddha, Unani, Tibatian, Tribal and Homeopathy. According to the survey of the World Health Organization (WHO), about 80% of the world population are using herbs and other traditional medicines for their primary healthcare and have established three kinds of herbal medicines: raw plant material, processed plant material, and herbal products. Now days, variety of available herbs are used throughout the world and they continue to promote good health. As the benefits from medicinal and aromatic plants are recognized, these plants will have a special role for humans in the future. The present review on medicinal and aromatic plants revealed similar combination of studies.

scholarly journals Solar Energy in the Logistics Sector: Assessments on Turkey

2019 ◽  
Vol 5 (2) ◽  
Author(s):  
Ayşegül Taşçıoğlu ◽  
Hilal Yıldırır Keser
Keyword(s):  
Renewable Energy ◽  
Solar Energy ◽  
Renewable Energy Sources ◽  
Raw Material ◽  
Transport Infrastructure ◽  
Energy Sources ◽  
Important Place ◽  
Starting Point ◽  
The World ◽  
Photovoltaic Technology

The fact that the current energy production resources have a tendency to be extinguished rapidly, the raw material prices have increased, their negative effects on the environment and human health, some difficulties in their use have increased the studies conducted on new and renewable energy sources in recent years. Among the renewable energy technologies, even though it is somewhat expensive, the easiest technology in terms of design and installation is the photovoltaic technology which is an application of solar energy. But its real superiority arises from the fact that it is a technology that does not pollute the environment, is environmentally friendly and has low maintenance costs. The use of solar energy has increased considerably with the increase in the use of renewable energy sources in the world and in our country in recent years and the roofs have had the largest share in this regard. Considering that more than 50% of the installed facilities in Germany and Italy, which are the starting point of solar energy in Europe, are on the roofs, the roofs have an important place in the increase of solar energy usage. Turkey is in fortunate situation compared to many countries in terms of the solar energy potential due to its geographical location. South Eastern Anatolia Region is the region that receives the most solar energy, this is followed by the Mediterranean Region. The logistics sector has recently been one of the sectors in which the solar energy is widely used in the world and in Turkey. In particular, significant reductions have been achieved in logistics costs with the solar energy systems installed on the roofs of the logistics warehouses, this event have increased the competitiveness of the companies. In addition, it is known that solar energy has been started to be used in the transportation activities and there are R & D studies for increasing road vehicles and cargo ships working with solar energy. In addition, efforts are being made to improve the solar-powered highways which strengthen the transport infrastructure and the logistics processes and these applications are becoming widespread. In study, the solar energy which is one of the mostly interested one among the renewable energy forms and the photovoltaic technology producing electrical energy using it will be discussed in this context, an then the current situation in Turkey and the World will be presented. Finally, the usage of the solar energy in the logistics sector and the applicaton examples in the world and in Turkey will be included.

Karakter Giffen Pada Komoditas Arang Tempurung Kelapa

Liquidity ◽  
2018 ◽  
Vol 6 (2) ◽  
pp. 141-153
Author(s):  
Pitri Yandri
Keyword(s):  
Principal Component Analysis ◽  
Principal Component ◽  
Component Analysis ◽  
Raw Material ◽  
Coconut Shell ◽  
Energy Sources ◽  
Fossil Energy ◽  
Limited Availability ◽  
Unique Character ◽  
New Energy

The problem of rising fossil energy faced with the limited availability of the commodity in the future. Therefore, it needs new energy sources to tackle the issue. An alternative that can help the economy is the utilization of waste coconut shell that is processed into charcoal. With using principal component analysis, the result of the estimation indicates, there is a unique character that is contained in the shell charcoal commodity. The character of shell charcoal is closed to Giffen goods behavior. The most logical answer is because charcoal is the main raw material of shell burning for a restaurant that has a menu that was burned; and it becomes the unique preferences of the restaurant. They prefer barbecuing their food menu by using charcoal rather than other fuels such as stove, which uses kerosene and LPG. It is because barbecuing with charcoal will produce a better aroma than using the stove with fuel kerosene or LPG.

A Case Study on Energy Saving and New Energy Services

2012 ◽  
Vol 462 ◽  
pp. 327-330
Author(s):  
Ze Guo Qiu
Keyword(s):  
Global Warming ◽  
Renewable Energy ◽  
Energy Conservation ◽  
Energy Saving ◽  
Co2 Emissions ◽  
Co2 Emission ◽  
Renewable Energy Sources ◽  
Energy Sources ◽  
New Energy

Energy conservation or energy saving is one of the most important methods for reducing CO2 emissions, which is known to be associated with global warming. Although development of renewable energy sources such as solar or wind energy is necessary, we must first pay attention to the fact that enormous amounts of energy are consumed uselessly at present. Energy saving should therefore be one of the first problems to be tackled. It may not only bring reductions in CO2 emission, but also may lead to savings in expenditure on energy. This paper introduces some of the initiatives taking place in Japan aimed at energy conservation.

scholarly journals Barents region transition to a green economy

2021 ◽  
Vol 258 ◽  
pp. 06056
Author(s):  
Anton Shcherbak ◽  
Sergey Tishkov ◽  
Valentina Karginova-Gubinova
Keyword(s):  
Renewable Energy ◽  
Energy Efficient ◽  
Renewable Energy Sources ◽  
Green Economy ◽  
Energy Sources ◽  
Economic Potential ◽  
Energy Potential ◽  
Barents Region ◽  
The World ◽  
New Energy

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.

Installed Capacity Prediction of Biomass Power Generation in China Based on Gray Dynamic Model

2013 ◽  
Vol 291-294 ◽  
pp. 221-224
Author(s):  
Zhi Bin Liu ◽  
Ai Sheng Ren ◽  
Li Wei Hou
Keyword(s):  
Power Generation ◽  
Global Warming ◽  
Energy Structure ◽  
Low Carbon ◽  
Low Carbon Economy ◽  
The World ◽  
New Energy ◽  
Installed Capacity ◽  
Capacity Prediction ◽  
Carbon Economy

The low-carbon economy is attention increasingly all over the world, and which has become the best economic mode to cope with global warming. And it is the important way to achieve the low carbon economy, optimize the energy structure through developing the biomass power generation and other new energy. In recent years, the development of biomass power generation in China is rapid, there are also some problems. Therefore, it is necessary to predict the biomass power generation industry development, especially the installed capacity of biomass power generation. In this paper, the authors used the GM (1, 1) model to predict the installed capacity of biomass power generation, which can reveal the evolution of things under the circumstances of less data and less information. The installed capacity prediction from 2011 to 2020 showed that the results given by this model were reliable, and it is feasible to predict the installed capacity of biomass power generation.

A Case Study on Energy Saving and New Energy Services

2011 ◽  
Vol 301-303 ◽  
pp. 357-360
Author(s):  
Qing Bao Wei
Keyword(s):  
Global Warming ◽  
Renewable Energy ◽  
Energy Conservation ◽  
Energy Saving ◽  
Co2 Emissions ◽  
Co2 Emission ◽  
Renewable Energy Sources ◽  
Energy Sources ◽  
New Energy

Energy conservation or energy saving is one of the most important methods for reducing CO2 emissions, which is known to be associated with global warming. Although development of renewable energy sources such as solar or wind energy is necessary, we must first pay attention to the fact that enormous amounts of energy are consumed uselessly at present. Energy saving should therefore be one of the first problems to be tackled. It may not only bring reductions in CO2 emission, but also may lead to savings in expenditure on energy. This paper introduces some of the initiatives taking place in Japan aimed at energy conservation.

scholarly journals Action and Reaction of Plants to High Temperature: Improving Response of Wheat to Heat Stress

2021 ◽  
pp. 62-70
Author(s):  
Lemma Abayneh Tumebo
Keyword(s):  
Climate Change ◽  
Global Warming ◽  
High Temperature ◽  
Food Production ◽  
Reproductive Development ◽  
World Population ◽  
Economic Stability ◽  
The World ◽  
The Impact ◽  
Yield Decrease

All estimates suggest that by 2050, upto 50% increase in food production will be required to feed the world population. Wheat is the second most important crop after rice and by 2050, wheat production needs to be increased by 60% for socio-economic stability. However, the climate change induced global warming will have adverse effect on crop plants including wheat. To deal with the crop yield decrease influenced by global warming, an indepth study of heat induced morpho-physiological and molecular changes in wheat will result in better understanding of the plant. This review focuses on the impact of high temperature on the morphological, physiological, reproductive development and signaling in plants.

Sign in / Sign up

Export Citation Format

Share Document