scholarly journals Experimental Tests and Modeling on a Combined Heat and Power Biomass Plant

Energies ◽  
2019 ◽  
Vol 12 (13) ◽  
pp. 2615 ◽  
Author(s):  
Guido Marseglia ◽  
Carlo Maria Medaglia ◽  
Alessandro Petrozzi ◽  
Andrea Nicolini ◽  
Franco Cotana ◽  
...  
Keyword(s):  
Renewable Energy ◽  
Energy Production ◽  
Renewable Energy Sources ◽  
Experimental Tests ◽  
Biomass Energy ◽  
Production Plant ◽  
The Sustainable Development ◽  
Development Goals ◽  
Energy Production System ◽  
Biomass Plant

Renewable energy sources can help the countries to achieve some of the Sustainable Development Goals (SDGs) provided from the recent 2030 Agenda, allowing for clean, secure, reliable and affordable energy. Biomass technology is a relevant renewable energy to contribute to reach a clean and affordable energy production system with important emissions reduction of greenhouse gases (GHG). An innovative technological application of biomass energy consisting of a burner coupled with an external fired gas turbine (EFGT) has been developed for the production of electricity. This paper shows the results of the plant modelling by Aspen Plus environment and preliminary experimental tests; the validation of the proposed model allows for the main parameters to be defined that regulate the energy production plant supplied by woodchips.

scholarly journals Study on the production and use of biomass energy in the Timis County

2021 ◽  
Vol 26 (2) ◽  
pp. 2434-2440
Author(s):  
CRISTINA BACĂU ◽  
◽  
NICOLETA MATEOC-SÎRB ◽  
RAMONA CIOLAC ◽  
TEODOR MATEOC ◽  
...  
Keyword(s):  
Renewable Energy ◽  
Energy Production ◽  
Nuclear Energy ◽  
Renewable Energy Sources ◽  
Biomass Energy ◽  
Renewable Energy Resources ◽  
Continuous Increase ◽  
Fossil Energy ◽  
Term Energy

The use of renewable energy resources is gaining more and more ground, thanks to the continuous increase in the price of fossil energy and the decrease in stocks, and the management of waste from nuclear energy production, respectively. The implementation of an energy strategy to harness the potential of renewable energy sources (RES) is part of the coordinates of Romania’s medium – and long-term energy development and provides the appropriate framework for the making of decisions on energy alternatives and the inclusion in the Community acquis in the field. In this respect, a study on the biomass potential of Timiş County and on the possibilities of producing unconventional energy from biomass has been carried out. The study is based on research, data collection from the literature, as well as from official documents or official websites, the processing and interpretation of the data and their quantitative and qualitative analysis. It was concluded that biomass is a promising renewable energy source for Romania, both in terms of potential and in terms of usability.

scholarly journals ROLE OF RENEWABLE ENERGY SECTOR IN SPECIFIC EUROPEAN UNION STATES, WITH PARTICULAR FOCUS ON POLAND

2018 ◽  
Author(s):  
Mirosław BICZKOWSKI ◽  
Aleksandra JEZIERSKA-THOLE ◽  
Anna DUBOWNIK
Keyword(s):  
European Union ◽  
Renewable Energy ◽  
Energy Production ◽  
Renewable Energy Sources ◽  
Primary Energy ◽  
Energy Sources ◽  
The Sustainable Development ◽  
To Come ◽  
The Eu

At present, the energy from renewable sources is an important element of the sustainable development strategy of the European Union (strategy covering the period until 2020). The article presents the role of renewable energy in the structure of primary energy sources and total energy production. In order to evaluate the present-day role of the renewable energy sector, specific European Union states were analysed, with particular focus on Poland, the country whose results were juxtaposed with the average ratios established for the EU-28. A detailed analysis of the current facts was performed (also a forecast for the period running up to 2020 was made), where particular energy sources were distinguished in the renewable energy production structure. A special role among renewable energy sources was ascribed to solar energy, wind energy, hydropower, geothermal energy, biogases and biofuels. The conclusions drawn from the research point out to the fact that the development of renewable energy in Poland is growing slowly but surely. In 2011, the share was at 9.5% and by 2015 it grew to 11.8%, with the target set for 2020 being at the level of 15.0%. The production of energy from renewable sources is improving (from 7.5 to 8.1 Mtoe). Nevertheless, the share of primary energy obtained from renewable energy sources in the total primary energy is less than half of the EU share. The data showcase that the projected aim is likely to be achieved; however, the few years to come should envisage some intensification of activities oriented to this goal. Biomass now enjoys the dominant role but its significance is gradually waning, which favours wind energy and biofuels. The projected directions of renewable energy development indicate that this sector is going to be a significant factor in implementing the sustainable development policy in the years to come.

scholarly journals Potential Impact of Renewable Energy on the Sustainable Development of Russian Arctic Territories

Energies ◽  
2021 ◽  
Vol 14 (12) ◽  
pp. 3691
Author(s):  
Viktoriia Brazovskaia ◽  
Svetlana Gutman ◽  
Andrey Zaytsev
Keyword(s):  
Sustainable Development ◽  
Renewable Energy ◽  
Co2 Emissions ◽  
Sustainable Development Goals ◽  
Renewable Energy Sources ◽  
The Arctic ◽  
Energy Sources ◽  
Russian Arctic ◽  
The Sustainable Development ◽  
Development Goals

In recent decades, there has been a positive trend in world politics in the field of promoting territories’ sustainable development. At the same time, one of the most relevant areas is to promote the transition to renewable energy sources (RES), which correspond to one of the UN’s goals—Sustainable Development Goal 7 (SDG 7) “Ensuring universal access to affordable, reliable, sustainable and modern energy sources for all”. This article is devoted to the study of the renewable energy sources’ impact on the sustainable development of the Russian Arctic zone. The authors chose the level of carbon dioxide (CO2) emissions as an indicator reflecting the impact of RES on sustainable development, since this factor is one of the main factors for assessing trends in the activities of countries aimed at achieving progress on most of the Sustainable Development Goals of territories. The hypothesis of the relationship between the use of renewable energy sources and the achievement of progress on the Sustainable Development Goals, one of the indicators of which is the level of CO2 emissions, was tested and confirmed. An econometric analysis of panel data for 15 countries that are actively implementing the concept of sustainable development, including decarbonizing policies, was carried out ,where the resulting indicator for achieving progress on the SDG was the amount of CO2 emissions. The factors influencing the resulting variable were indicators selected based on a review of existing models, as well as indicators of the Sustainable Development Goals’ achievement. Using an econometric analysis of interdependence, the indicators of progress towards the Sustainable Development Goals that are more likely to have an impact on the level of CO2 emissions were identified. These are electricity consumption, the share of renewable energy sources in the energy balance, the average per capita income of the population, and carbon intensity. Based on the results obtained, it can be concluded that renewable energy sources are a factor contributing to the achievement of progress on the Sustainable Development Goals. The results obtained are also applicable to the Arctic region, since all countries that have territories in the Arctic zone adhere to the policy of decarbonization and try to reduce the use of fossil fuels.

scholarly journals ON SYNERGIES AND CONFLICTS BETWEEN THE SUSTAINABLE DEVELOPMENT GOALS (2016-2030) AND RENEWABLE ENERGY SOURCES FOR EDUCATION OF AND BY SUSTAINABILITY

2017 ◽  
Vol 75 (2) ◽  
pp. 182-193
Author(s):  
Janos Mika ◽  
Andrea Farkas
Keyword(s):  
Sustainable Development ◽  
Renewable Energy ◽  
Environmental Education ◽  
Sustainable Development Goals ◽  
Renewable Energy Sources ◽  
Renewable Energies ◽  
Energy Sources ◽  
The Sustainable Development ◽  
Development Goals

In September 2015 the United Nations (UN) accepted the Sustainable Development Goals (2016-2030) for mankind, including 17 Goals and 169 detailed Targets. Sustainability is understood in the wider sense by the document, considering society and economy not just as conditions for environmental sustainability, but as equally important pillar of the „building of sustainability”. Fulfilment of these goals and targets needs active participation of present and future generations, hence education of these tasks is inevitable. The aim of the research is to specify those goals and detailed targets in which renewable energy sources are involved. The latter is just one aspect for bringing the whole complex closer to the adults and youngsters to educate. This topic, however, is characterised by three features that make this aspect appealing: renewable energies are (i) fast developing, (ii) future oriented by saving the environment and (iii) they represent relatively new pieces of knowledge, so contemporary information should not fight with older learning. Before turning to these goals and targets, a reasonable classification of the 17 goals, listed without any systematic order in the UN document, is provided. The presented classification of the goals recommends the following groups: (i) Primary needs of humans (Goals 2, 3, 6 and 7) (ii) Equality between humans (1, 4, 5 and 10), (iii) Efficient, sustainable production (8, 9, 12 and 13), (iv) Landscapes in danger (11, 14 and 15) and (v) Worldwide cooperation (16, 17). From these Goals, No. 7 (affordable and clean energy) and No 13 (climate action) are in full synergy with the aim of extended renewable energy utilisation, but No 2 (zero hunger) might be in contradiction with extensive land use for bio-energy. If consumption of timber for bio-energy continues to be intense than No. 15 (life on land) may also contradict to other goals of sustainable development. Six further targets are identified as related to renewable energies without relatedness of the complete goals. So, we may consider 14 targets belonging to 9 goals to be related to energy sources. The recommended classification of the goals and quotations of the energy-relevant targets are illustrated by some world-wide and Hungarian indicators. Being acquainted with these objectives is useful for all youngsters, presented at their level of knowledge, and it provides a good basis to refresh one’s activity expressed in the environmental education. Keywords: climate change, environmental education, renewable energy, sustainable development.

scholarly journals Where Renewable Energy Sources Funds are Invested? Spatial Analysis of Energy Production Potential and Public Support

Energies ◽  
2020 ◽  
Vol 13 (21) ◽  
pp. 5551 ◽  
Author(s):  
Jan K. Kazak ◽  
Joanna A. Kamińska ◽  
Rafał Madej ◽  
Marta Bochenkiewicz
Keyword(s):  
Renewable Energy ◽  
Energy Production ◽  
Renewable Energy Sources ◽  
Public Support ◽  
Biomass Energy ◽  
Energy Sources ◽  
Final Conclusion ◽  
Production Potential ◽  
Sustainable Solutions ◽  
Renewable Energy Production

Energy transition in the European Union (EU) is strongly related to public support from structural funds which enable member states to create new and renovate existing renewable energy source (RES) installations. However, in order to maximize benefits of these investments it is crucial to consider where RES funds are allocated, how it corresponds with RES potential in specific locations, and how future implementation of energy policies can be improved. In this study, RES development projects supported by EU funds, implemented in the period 2004–2019 in Poland, were analyzed in relation to solar, wind and biomass energy potential. The study was conducted with the use of agglomeration method and k-mean method to define clusters of local administrative units characterized by similar features of RES funds absorption and renewable energy production potential. The results obtained show that in the case of all energy sources there is no correlation between high RES funds absorption and energy production potential. The final conclusion of the research is that in order to boost energy transformation into more sustainable solutions, renewable energy production potential should be considered as a factor to allocate public financial support for future energy policy implementation.

Renewable Energy Systems Integration for Efficiency Improvement of a CHP Unit

2017 ◽  
Author(s):  
M. A. Ancona ◽  
L. Branchini ◽  
A. De Pascale ◽  
F. Melino ◽  
B. Di Pietra
Keyword(s):  
Renewable Energy ◽  
Fuel Consumption ◽  
Energy Production ◽  
Production Systems ◽  
Renewable Energy Sources ◽  
Electric Energy ◽  
District Heating ◽  
Energy Systems ◽  
Production Plant ◽  
Energy Grid

In the next years energy grids are expected to become increasingly complex, due to the integration between traditional generators (operating with fossil fuels, especially natural gas), renewable energy production systems and storage devices. Furthermore, the increase of installed distributed generation systems is posing new issues for the existing grids. The integration involves both electric grids and thermal networks, such as district heating networks. In this scenario, it is fundamental to optimize the production mix and the operation of each system, in order to maximize the renewable energies exploitation, minimize the economic costs (in particular the fossil fuel consumption) and the environmental impact. The aim of this paper is the analysis of different solutions in terms of energy generation mix, in order to define the optimal configuration for a given network. With this purpose, in this study a real district heating network served by a combined heat and power unit and four boilers has been considered. The current mode of operation of the selected network has been simulated, in order to individuate eventual criticism and/or improvement possibility. On the basis of the obtained results, several scenarios have been developed by considering the addition of thermal or electric energy production systems from renewable energy sources and/or heat pumps. For a given scenario, a whole year of operation has been simulated with an in-house developed software, called EGO (Energy Grid Optimizer), based on genetic algorithms and able to define the load distribution of a number of energy systems operating into an energy grid, with the aim to minimize the total cost of the energy production. Further considered constraints have been the avoiding of thermal dissipations and the minimization of the electric energy sale to the national grid (in order to increase the grid stability). The carried out analysis has allowed to evaluate the yearly fuel consumption, the yearly electric energy sold to the network and the yearly electric energy purchased from the network, for each of the developed configurations. In this study the obtained results have been discussed in order to compare the proposed scenarios and to define an optimal solution, which enables to reduce the yearly operation costs of the production plant.

Renewable Energy on Tribal Lands: A Feasibility Study for a Biomass-to-Energy Plant on the Cocopah Reservation in Arizona

2019 ◽  
Vol 3 (1) ◽  
pp. 1-12
Author(s):  
Lauren K. D’Souza ◽  
William L. Ascher ◽  
Tanja Srebotnjak
Keyword(s):  
Renewable Energy ◽  
Alternative Energy ◽  
Renewable Energy Sources ◽  
The United States ◽  
Biomass Energy ◽  
Policy Support ◽  
Small Scale ◽  
Energy Plant ◽  
Energy Projects ◽  
Alternative Investment

Native American reservations are among the most economically disadvantaged regions in the United States; lacking access to economic and educational opportunities that are exacerbated by “energy insecurity” due to insufficient connectivity to the electric grid and power outages. Local renewable energy sources such as wind, solar, and biomass offer energy alternatives but their implementation encounters barriers such as lack of financing, infrastructure, and expertise, as well as divergent attitudes among tribal leaders. Biomass, in particular, could be a source of stable base-load power that is abundant and scalable in many rural communities. This case study examines the feasibility of a biomass energy plant on the Cocopah reservation in southwestern Arizona. It considers feedstock availability, cost and energy content, technology options, nameplate capacity, discount and interest rates, construction, operation and maintenance (O&M) costs, and alternative investment options. This study finds that at current electricity prices and based on typical costs for fuel, O&M over 30 years, none of the tested scenarios is presently cost-effective on a net present value (NPV) basis when compared with an alternative investment yielding annual returns of 3% or higher. The technology most likely to be economically viable and suitable for remote, rural contexts—a combustion stoker—resulted in a levelized costs of energy (LCOE) ranging from US$0.056 to 0.147/kWh. The most favorable scenario is a combustion stoker with an estimated NPV of US$4,791,243. The NPV of the corresponding alternative investment is US$7,123,380. However, if the tribes were able to secure a zero-interest loan to finance the plant’s installation cost, the project would be on par with the alternative investment. Even if this were the case, the scenario still relies on some of the most optimistic assumptions for the biomass-to-power plant and excludes abatement costs for air emissions. The study thus concludes that at present small-scale, biomass-to-energy projects require a mix of favorable market and local conditions as well as appropriate policy support to make biomass energy projects a cost-competitive source of stable, alternative energy for remote rural tribal communities that can provide greater tribal sovereignty and economic opportunities.

scholarly journals The Energy System of an Ecovillage: Barriers and Enablers

Land ◽  
2021 ◽  
Vol 10 (7) ◽  
pp. 682
Author(s):  
Zita Szabó ◽  
Viola Prohászka ◽  
Ágnes Sallay
Keyword(s):  
Renewable Energy ◽  
Spatial Structure ◽  
Energy Management ◽  
Energy Production ◽  
Renewable Energy Sources ◽  
Energy System ◽  
Energy Sources ◽  
Energy Management System ◽  
Production And Consumption ◽  
Ecologically Sustainable

Nowadays, in the context of climate change, efficient energy management and increasing the share of renewable energy sources in the energy mix are helping to reduce greenhouse gases. In this research, we present the energy system and its management and the possibilities of its development through the example of an ecovillage. The basic goal of such a community is to be economically, socially, and ecologically sustainable, so the study of energy system of an ecovillage is especially justified. As the goal of this community is sustainability, potential technological and efficiency barriers to the use of renewable energy sources will also become visible. Our sample area is Visnyeszéplak ecovillage, where we examined the energy production and consumption habits and possibilities of the community with the help of interviews, literature, and map databases. By examining the spatial structure of the settlement, we examined the spatial structure of energy management. We formulated development proposals that can make the community’s energy management system more efficient.

THE ROLE OF RENEWABLE ENERGY SOURCES IN REGIONAL TOURISM DEVELOPMENT

2009 ◽  
Vol 15 (1) ◽  
pp. 25-36
Author(s):  
Branko Blazevic
Keyword(s):  
Sustainable Development ◽  
Renewable Energy ◽  
Wind Power ◽  
Geothermal Energy ◽  
Renewable Energy Sources ◽  
Biomass Energy ◽  
Energy Sources ◽  
Regional Tourism ◽  
Regional Sustainable Development

In this paper, the author focuses on the fundamental hypothesis that the adoption of a concept of regional sustainable development and the use of renewable energy sources are preconditions to organising an acceptable regional tourism offering based on an eco-philosophy The renewable development of tourism regions is the basic framework for research regarding opportunities for introducing renewable energy sources such as hydro energy, wind power, solar energy, geothermal energy, and biomass energy. The purpose of this paper is to indicate the real opportunities that exist for substituting conventional energy sources with renewable ones and the role of renewables in regional development from economic, environmental and sociological viewpoints. It should also be noted that renewable energy sources have a strong regional importance and can contribute significantly to local employment.

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