scholarly journals Bio-mass for energetic: Chance or regression?

2012 ◽  
Vol 48 (No. 11) ◽  
pp. 502-504 ◽  
Author(s):  
M. Neruda ◽  
M. Farský

Authors summarise historical aspects of the renewable energy resources usage in the Czech countries, mainly of bio-mass. They are interested in the economic evaluation of the investment efficiency of usage or transformation of bio-mass. They supply facts of the approaching fossil fuels reserves exhausting and therefore an interest of growing trees and plants for energy usage. They indicate the possible utilisation of fallow land and of reclaimed land after the surface lignite mining for the purpose.

Author(s):  
P. Sivashankari ◽  
A. Krishnamoorthy ◽  
K.N. Balaji

Due to depletion of fossil fuels, concerns about energy security and global warming make renewable energy resources more attractive. In this regard, using biodiesel seems to be a possible and feasible source of energy for transportation. This paper presents an investigation of the performance and emission characteristics of CI engine using 10% blend of rice bran oil as fuel and ceramic oxide coated piston.


2021 ◽  
Vol 239 ◽  
pp. 00008
Author(s):  
Navid Hadifar ◽  
Amirreza Ayanlou

With rising the environmental issues regarding the fossil fuels, the renewable energy resources (RES) could be as interesting scheme in supply side for micro grids. The aim of this paper is to investigate the feasibility of photovoltaic (PV) system in Iran both in grid-connected and island mode. The case study is a residential house in the city of Amol. The software of HOMER (Hybrid Optimization of Multiple Energy Resources) is used for analyzing the data for finding the optimal design among the various solutions which takes in to account electrical and economic assessment factors. In the section of grid-connection mode, two different simulation methods namely HOMER optimizer mode and optimal sizing design mode is used to better understand the grid participation with PV in supplying the power for load demand. Finally, the optimal and affordable design for selected region is grid-connected PV system which alleviate the energy need from grid.


2021 ◽  
Author(s):  
Bramhaiah Kommula ◽  
Santanu Bhattacharyya

Considering the current global energy crisis and the most alarming environmental pollution issues, moving towards renewable energy resources instead of fossil fuels, should be the ultimate goal of modern civilization....


Resources ◽  
2019 ◽  
Vol 8 (3) ◽  
pp. 149 ◽  
Author(s):  
Avtar ◽  
Sahu ◽  
Aggarwal ◽  
Chakraborty ◽  
Kharrazi ◽  
...  

Renewable energy has received noteworthy attention during the last few decades. This is partly due to the fact that fossil fuels are depleting and the need for energy is soaring because of the growing population of the world. This paper attempts to provide an idea of what is being done by researchers in remote sensing and geographical information system (GIS) field for exploring the renewable energy resources in order to get to a more sustainable future. Several studies related to renewable energy resources viz. geothermal energy, wind energy, hydropower, biomass, and solar energy, have been considered in this paper. The focus of this review paper is on exploring how remote sensing and GIS-based techniques have been beneficial in exploring optimal locations for renewable energy resources. Several case studies from different parts of the world which use such techniques in exploring renewable energy resource sites of different kinds have also been included in this paper. Though each of the remote sensing and GIS techniques used for exploration of renewable energy resources seems to efficiently sell itself in being the most effective among others, it is important to keep in mind that in actuality, a combination of different techniques is more efficient for the task. Throughout the paper, many issues relating to the use of remote sensing and GIS for renewable energy are examined from both current and future perspectives and potential solutions are suggested. The authors believe that the conclusions and recommendations drawn from the case studies and the literature reviewed in the present study will be valuable to renewable energy scientists and policymakers.


2014 ◽  
Vol 1043 ◽  
pp. 12-16
Author(s):  
Afroza Nahar ◽  
M. Hasanuzzaman ◽  
N.A. Rahim ◽  
Md. Hosenuzzaman

Interest of renewable energies is increasing due to the revising the energy policies for fighting against the emission of Carbon-dioxide. To make the development of the civilization sustainable and cause less harm to the environment, clean energy resources are very important. Many alternative renewable energy resources are available that can be used instead of fossil fuels. Solar energy is one of the potential alternative renewable energies. This paper presents differents types of Photovoltaic cell materials which is one of the most effective parameter for improvement of photovoltaic cell as well as Photovoltaic system performance.


2020 ◽  
Vol 4 (9) ◽  
pp. 4390-4414
Author(s):  
Koray Alper ◽  
Kubilay Tekin ◽  
Selhan Karagöz ◽  
Arthur J. Ragauskas

Fossil fuels must be replaced with renewable energy resources to ensure sustainable development, reduce the dependence on fossil fuels, address environmental challenges including climate change.


Agromet ◽  
2021 ◽  
Vol 35 (2) ◽  
pp. 108-115
Author(s):  
Muhammad Noor Ariefin ◽  
Puji Harsono ◽  
Amalia Tetrani Sakya

The downside of fossil fuels as non-renewable energy resources in Indonesia has led to invent alternative energy resources. One of alternative sources is biofuels, which are derived from organic compound that originated from plants and living creatures. Here, we used sorghum as a source of biofuels, but current knowledge of sorghum cultivation on dry land is limited. This study aims to determine the influence of sorghum genotypes on their growth and yield in a dry land, and to analyze the potential of sorghum as biofuels. This research was carried out in low land, on vertisol soil, from August to November 2020. We applied a completely randomized block design with one factor and 3 replications. Seven sorghum varieties were identified namely Numbu, Super 1, Suri 3, Keller, Kawali, Black Sorghum, and Bioguma-2. The results showed that each variety had different genetical properties leading to various growth rates in both vegetative and generative phases. Our finding revealed that Keller variety was the most productive sorghum plant as it produced the highest sugar content (20°Brix). Also, Keller was the tallest plants (>300 cm) compared to other varieties. Bioguma-2 was the second, which was proven by its longest stem (307 cm) and high stem sap content (18°Brix). Thus, we recommended the Keller and Bioguma-2 as the suitable sorghum variety to be utilized in biofuels manufacturing.


2018 ◽  
Vol 24 (1) ◽  
pp. 58-64
Author(s):  
Ionuț Alin Cirdei

Abstract Energy security is a matter of particular importance to all the world's states, whether they are producers or consumers of energy resources. For a long time, fossil energy resources have been the only source of energy used on a planetary scale. When mankind realized that fossil energy resources are a finite source of energy and that their intensive use causes many environmental problems, the most important of which is related to global warming, they have tried to find alternative sources of energy. Thus, concerns have arisen about the use of renewable energy on a wider scale, with both individual concerns of states that have potential in this area and collective concerns, such as at EU level, which has proposed by 2020, the share of energy from renewable sources used by the Union states is at least 20% of total consumption. Renewable energy resources may be an alternative to fossil fuels, but at the same time it has a number of limitations and vulnerabilities. Ensuring energy security means a comprehensive approach, understanding of limitations and reducing vulnerabilities


Author(s):  
Mohammad Miyan ◽  
M. K. Shukla

The sources of energy that are exhaustible and being made unceasingly in nature are known as nonconventional energy or renewable sources of energy. The standard sources embrace the fossil fuels i.e., coal, oil and gas, sorts of atomic energy i.e., Uranium, whereas the nonconventional sources like daylight, wind, rain, tides, and energy heat, that are renewable. Since theevent and progress of grouping are closely associated with energy sources, several countries throughout the globe have engaged themselves in looking and developing non-conventional energy sources that may be terribly essential to sustain the life cycle of person. The consumption of energy is directly proportional to the progress of the grouping. With ever growing population, improvement within the living commonplace of the mankind, industrialization of developing countries, the world demand for energy is anticipated to extend considerably within the close to future. The energy crisis that began in 1973 caused oil provides to decrease and costs to rise usuriously. This crisis forced developing countries to cut back or hold over necessary development programs, so that they may purchase oil to stay their economies operational. It created the imperative necessity to seek out and develop energy sources, like different fossil fuels i.e., coal, gas, atomic energy, and renewable energy resources. Our country, Republic of India has additionally taken sure initiatives during this read. In this paper, a review based mostly study has been given concerning numerous non-conventional energy sources and their current standing and usage in India.


Author(s):  
Zaineb Nisar Jan

Abstract: In the present world where environmental issues are posing a great threat to the survival of mankind a better yet effective way of reducing carbon emissions and improving the environment by less usage of fossil fuels was suggested. This approach was called microgrid (MG). Renewable energy resources could be used effectively to produce electricity and can be easily integrated with the conventional grid. This paper elaborates on the basic concept of microgrid, and then describes the challenges and future prospects of the microgrid. Distribution generators along with energy storage devices and proper interfacing power electronic devices are used. Working on the basis of the type of microgrid is also discussed in this paper. Keywords: Renewable energy resources, distributed energy, AC microgrid, DC microgrid, energy management.


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