scholarly journals Complementing firewood with alternative energy sources in Rio Pardo Watershed, Brazil

2017 ◽  
Vol 47 (9) ◽  
Author(s):  
Luana Dessbesell ◽  
Jorge Antonio de Farias ◽  
Fábio Roesch
Keyword(s):  
Energy Source ◽  
Alternative Energy ◽  
Primary Energy ◽  
Supply System ◽  
Economic Feasibility ◽  
Energy Sources ◽  
Alternative Energy Sources ◽  
Curing Systems

ABSTRACT: Wood is the primary energy source for grains and Tobacco drying in the Rio Pardo Watershed (RPW). The amount of firewood produced in the RPW is not enough to supply the demand. Recently, an automatized supply system was introduced in the region enabling the use of sawdust and pellets. In this context, this study aims to compare firewood, sawdust and pellets as energy sources for Tobacco curing in air-forced curing systems. Energetic density was used to estimate the biomass consumption in Tobacco curing. The consumption of biomass is lower for pellet, followed by firewood and sawdust. Pellets and sawdust could complement firewood in the region; however, research is necessary to ascertain the economic feasibility.

scholarly journals ENERGY EFFICIENCY OF ENTERPRISES AS A KEY FACTOR IN THE DEVELOPMENT OF THE COUNTRY'S ECONOMY

10.23856/3304 ◽  
2019 ◽  
Vol 33 (2) ◽  
pp. 36-49
Author(s):  
Kateryna Andriushchenko ◽  
Lidiya Shergina ◽  
Vita Kovtun ◽  
Nataliia Revutska ◽  
Andrii Vashchyshyn
Keyword(s):  
Energy Efficiency ◽  
Alternative Energy ◽  
Fusion Energy ◽  
Primary Energy ◽  
State Regulation ◽  
Energy Sources ◽  
Alternative Energy Sources ◽  
Key Factor ◽  
Environmentally Safe ◽  
Energy Independence

The transition to alternative energy sources requires a long period, attracting significant investments in the process of creating and developing environmentally friendly fuels. Creating an environmentally safe, energy-efficient economy is a prerequisite for sustainable development of each country. The above-mentioned factors determine the relevance of the study of the problems of the functioning and development of energy, which is mainly due to the economic expediency of renewable energy and the requirements of the country's energy independence. The objective of the article is to determine the features of ensuring the energy efficiency of the Ukrainian economy using alternative energy sources. Research shows that the development of alternative energy will allow us to move away from the use of traditional fuels and create the prerequisites for the energy independence of countries. Taking into account the natural factors and the significant dependence of Ukraine on imported primary energy sources, it is determined that solving the problem of increasing energy efficiency of the economy is possible only with the stimulation of the use of alternative energy sources. The most promising sources of energy are identified, namely: biofuels, wind energy, geothermal energy, solar energy, solar thermal, controlled thermonuclear fusion, energy of tides and effluents. The recommendations for realization of such directions of the policy of the state regulation in the energy sphere as energy security, energy efficiency, energy saving are given.

scholarly journals Optimal Utilization Of Alternative Energy Sources

2011 ◽  
Vol 8 (5) ◽  
Author(s):  
Duane J. Rosa
Keyword(s):  
Energy Source ◽  
Alternative Energy ◽  
Optimization Problem ◽  
Fundamental Problem ◽  
Optimal Solution ◽  
Energy Sources ◽  
Alternative Energy Sources ◽  
Energy Needs ◽  
Different Types ◽  
Optimum Utilization

Many areas of the world today have access to alternative energy sources to meet their energy needs. A fundamental problem facing societies today is to determine the optimum utilization of energy sources. This paper analyzes the issues involving co-utilization of different types of energy production in Iceland. Formulating a dynamic social optimization problem, expressions are derived for optimal energy supply prices from each energy source. Based on the economic characteristics of the energy sources, an optimal solution is derived that involves both periods of specialization in a single energy source as well as periods of simultaneous co-utilization of available sources.

scholarly journals PROBLEMS AND PROSPECTS FOR BIOENERGY DEVELOPMENT IN UKRAINE

2018 ◽  
Vol 40 (2) ◽  
pp. 41-48 ◽  
Author(s):  
G.G. Geletukha ◽  
T.A. Zheliezna ◽  
A.I. Bashtovyi ◽  
G.I. Geletukha
Keyword(s):  
Renewable Energy ◽  
Energy Balance ◽  
Alternative Energy ◽  
Action Plan ◽  
Renewable Energy Sources ◽  
Primary Energy ◽  
Energy Sources ◽  
Legal Basis ◽  
Alternative Energy Sources ◽  
Current State

The current state of the development of bioenergy in Ukraine is presented. Prospects for the production of heat from biomass by sectors of consumption until 2050 are estimated. The most important barriers to the development of the sector are analyzed, ways for their complete or partial overcoming are suggested. The current state of the development of bioenergy in Ukraine is presented. It is shown that according to Ukraine’s energy balance for 2010-2016, the average annual growth of bioenergy is 45 % by the «production of biofuel and wastes» and 35 % by the «total primary energy supply from biofuels and wastes». Despite quite good dynamics of the development, to reach key figures of the National Renewable Energy Action Plan until 2020 it is necessary to speed up bioenergy growth. Prospects for the production of heat from biomass by sectors of consumption until 2050 are estimated. The obtained results show that the share of renewables in the total heat production may be over 57 % in 2050. At that the consumption of renewable energy sources will be about 13.8 Mtoe/yr (of which biomass accounts for over 90 %), and the respective replacement of natural gas will come to about 17 billion m3/yr. The most important barriers to the development of bioenergy sector are analyzed, and ways for their complete or partial overcoming are suggested. Ukraine has quite good legal basis for the development of renewable energy. In particular, it includes the feed-in tariff for power produced from alternative energy sources and stimulating tariff for heat produced from alternative energy sources for households and public buildings. For the wider involvement of biomass in the fuel and energy balance of Ukraine it is necessary to provide legal basis and implementation of a number of important measures.Among others, they include creating preconditions for increasing harvesting of wood in Ukraine’s forests, introduction of the electronic biofuel trade system, ensuring fair access of independentproducersofbiomassheattoheatnetworksandother.

scholarly journals Solar Park: The Next Generation Energy Source in Bangladesh

2020 ◽  
pp. 9-19
Author(s):  
Zafrin Ahmed Liza ◽  
Mohammad Rakibul Islam
Keyword(s):  
Energy Source ◽  
Renewable Energy ◽  
Solar Energy ◽  
Alternative Energy ◽  
Renewable Energy Sources ◽  
Vital Role ◽  
Energy Sources ◽  
Alternative Energy Sources ◽  
Current Scenario ◽  
Different Sources

The continuous depletion of fossil fuel reserves and threats on climate change makes it essential for searching alternative energy sources. Renewable energy can play a vital role in this regard. Solar energy is the most promising renewable energy source available so far. In this paper, the availability of solar energy in Bangladesh and the prospects of solar photovoltaic based power generation are discussed. Analysis for different sources of solar energy is revealed. Especially the current scenario and prospect of Solar Park is investigated. And the result shows that according to the future plan, Solar Park is going to hold the largest share among all the renewable energy sources. According to the Renewable Energy Master Database, the total renewable energy capacity including all categories is about 2.4 GW. Among these, solar park projects are the main contributors in terms of capacity which is 2,110.56 MW.

Analysis and prospects of using alternative motor fuels in road transport

2020 ◽  
Keyword(s):  
Energy Source ◽  
Alternative Energy ◽  
Power Plants ◽  
Combustion Engine ◽  
Road Transport ◽  
Energy Crisis ◽  
Energy Sources ◽  
Alternative Energy Source ◽  
Alternative Energy Sources ◽  
Motor Fuels

The article considers the existing alternative motor fuels and energy sources that can be used in power power plants of road transport, formulated the requirements for promising energy sources (renewable and non-renewable), as well as the prospects for the use of alternative energy sources to create traction in road transport. Keywords road transport; internal combustion engine; alternative motor fuels; alternative energy source; ecological compatibility; energy crisis

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