scholarly journals Economical and environmental analysis of biodiesel obtained through used fried oil in toll plazas

2008 ◽  
Vol 6 (2) ◽  
pp. 165-174
Author(s):  
Carlo Alessandro Castellanelli ◽  
Cristiano Roos ◽  
Márcio Castellanelli ◽  
Leandro Cantorski da Rosa
Keyword(s):  
Renewable Energy ◽  
Renewable Energy Sources ◽  
Rio Grande ◽  
Economic Viability ◽  
Energy Sources ◽  
Rio Grande Do Sul ◽  
Power Generators ◽  
Technical Parameters ◽  
Toll Plazas ◽  
Fried Oil

In this article, the aim is to demonstrate the economic viability and environmental advantages of diesel replacement for biodiesel, obtained by used fried oil to be used in power generators. To reach these goals, a study was performed in three toll plazas with diesel power generators in the state of Rio Grande do Sul. The technical parameters for the study of diesel power generators were obtained from experiments conducted by the research group to guide the study. The results have appointed that biodiesel can be used as a substitute for diesel generators in the toll plazas, leading to economic and environmental advantages.Thus, the study provided a better understanding on the proposed subject, showing the importance of renewable energy sources towards environmental, political and economic events.

scholarly journals Progresses in Analytical Design of Distribution Grids and Energy Storage

Energies ◽  
2021 ◽  
Vol 14 (14) ◽  
pp. 4270
Author(s):  
Gianpiero Colangelo ◽  
Gianluigi Spirto ◽  
Marco Milanese ◽  
Arturo de Risi
Keyword(s):  
Renewable Energy ◽  
Power Flow ◽  
State Of The Art ◽  
Renewable Energy Sources ◽  
Energy Sources ◽  
Distribution Grid ◽  
Mathematical Methods ◽  
Power Generators ◽  
Bidirectional Power Flow ◽  
Distribution Grids

In the last years, a change in the power generation paradigm has been promoted by the increasing use of renewable energy sources combined with the need to reduce CO2 emissions. Small and distributed power generators are preferred to the classical centralized and sizeable ones. Accordingly, this fact led to a new way to think and design distributions grids. One of the challenges is to handle bidirectional power flow at the distribution substations transformer from and to the national transportation grid. The aim of this paper is to review and analyze the different mathematical methods to design the architecture of a distribution grid and the state of the art of the technologies used to produce and eventually store or convert, in different energy carriers, electricity produced by renewable energy sources, coping with the aleatory of these sources.

scholarly journals DESEMPENHO DE DOIS SISTEMAS DE BOMBEAMENTO POR ENERGIA FOTOVOLTAICA NO MEIO RURAL

Irriga ◽  
2022 ◽  
Vol 1 (4) ◽  
pp. 653-660
Author(s):  
Alarisse Costa Avelar ◽  
Vanessa de Fátima Grah Ponciano ◽  
Ezequiel Saretta ◽  
Isaac de Matos Ponciano ◽  
Everton Farias Coutrim ◽  
...  
Keyword(s):  
Renewable Energy Sources ◽  
Rio Grande ◽  
Relevant Information ◽  
Energy Sources ◽  
System Efficiency ◽  
Rio Grande Do Sul ◽  
Energy Matrix ◽  
Photovoltaic Panels ◽  
The World ◽  
Santa Maria

DESEMPENHO DE DOIS SISTEMAS DE BOMBEAMENTO POR ENERGIA FOTOVOLTAICA NO MEIO RURAL     ALARISSE COSTA AVELAR1; VANESSA DE FÁTIMA GRAH PONCIANO2; EZEQUIEL SARETTA3; ISAAC DE MATOS PONCIANO4; EVERTON FARIAS COUTRIM5 E MURILLO RIBEIRO DE GONÇALVES NUNES6   1 Discente do curso de Agronomia, Instituto Federal Goiano, IF Goiano Campus Iporá, Av. Oeste, 350, Parque União, Iporá, Goiás, Brasil. [email protected] 2 Professora Doutora, IF Goiano Campus Iporá, Av. Oeste, 350, Parque União, Iporá, Goiás, Brasil. [email protected] 3 Professor Adjunto, Universidade Federal de Santa Maria. Rua Ernesto Barros, 1345, Santo Antônio, 96506-322, Cachoeira do Sul, Rio Grande do Sul, Brasil. [email protected] 4 Professor Doutor, Faculdade de Iporá, R. Serra Cana Brava, 512, Boa Vista, Iporá, Goiás, Brasil. [email protected] 5 Discente do curso de Agronomia, Instituto Federal Goiano, IF Goiano Campus Iporá, Av. Oeste, 350, Parque União, Iporá, Goiás, Brasil. [email protected] 6 Discente do curso de Agronomia, Instituto Federal Goiano, IF Goiano Campus Iporá, Av. Oeste, 350, Parque União, Iporá, Goiás, Brasil. [email protected]     1 RESUMO   Apesar da oferta interna de energia do Brasil ser composta em sua maioria por fontes não renováveis, o uso das fontes de energias renováveis no Brasil é três vezes maior que a média mundial. O uso de energia fotovoltaica para o bombeamento de água é uma das utilizações mais promissoras dessa fonte energética. Sendo que a energia solar é variável para os diferentes locais, seja pelo padrão climático, latitude e componentes atmosféricos, a avaliação do desempenho de bombeamento em diferentes localidades é de extrema importância para a obtenção de informações mais precisas. Diante do exposto, o presente trabalho visa avaliar o desempenho de duas motobombas fotovoltaicas, uma submersa e outra de superfície, para o bombeamento de água para uso rural, no município de Iporá-GO. Utilizou-se uma motobomba submersa Anauger R-100 e uma de superfície Shurflo 2088 instaladas a painéis fotovoltaicos. Através das análises dos dados coletados por sensores observou-se que para as mesmas condições a motobomba Anauger R-100 apresentou um melhor desempenho em bombeamento, obtendo maior vazão, maior tempo de funcionando e eficiência global do sistema.   Palavras-chave: eficiência, irradiância, viabilidade.     AVELAR, A.C.; GRAH PONCIANO, V.F.; SARETTA, E.; PONCIANO, I.M.; COUTRIM, E.F.; NUNES, M.R.G. PERFORMANCE OF TWO PHOTOVOLTAIC PUMPING SYSTEMS IN THE RURAL AREA           2 ABSTRACT   Although Brazil's energy matrix is composed mostly of nonrenewable sources, the use of renewable energy sources in Brazil is three times greater than in the world. The use of photovoltaic energy for pumping water is one of the most promising uses of this energy source. Since solar energy is variable for different locations, whether due to weather pattern, latitude and atmospheric components, evaluation of pumping performance in different locations are extremely important to obtain relevant information. Given the above, this study aims to evaluate the performance of two photovoltaic motor pumps, one submerged and one surface, for pumping water for rural use, in the municipality of Iporá-GO. An Anauger R-100 submerged motor pump and a Shurflo 2088 surface motor pump installed in photovoltaic panels were used. An Anauger R-100 submerged motor pump and a Shurflo 2088 surface motor pump installed on photovoltaic panels were used. Through the analysis of the data collected by sensors, it was observed that for the same conditions the Anauger R-100 motor pump presented a better pumping performance, obtaining greater flow, longer running time and overall system efficiency.   Keywords: efficiency, irradiance, viability.

scholarly journals Renewable Energy Sources and Battery Forecasting Effects in Smart Power System Performance

Energies ◽  
2019 ◽  
Vol 12 (3) ◽  
pp. 373 ◽  
Author(s):  
Mehdi Bagheri ◽  
Venera Nurmanova ◽  
Oveis Abedinia ◽  
Mohammad Salay Naderi ◽  
Noradin Ghadimi ◽  
...  
Keyword(s):  
Renewable Energy ◽  
Power System ◽  
Renewable Energy Sources ◽  
Forecast Model ◽  
Green Energy ◽  
Energy Sources ◽  
Smart Power ◽  
Power Generators ◽  
Wind Power Generator ◽  
Power System Performance

In this study, the influence of using acid batteries as part of green energy sources, such as wind and solar electric power generators, is investigated. First, the power system is simulated in the presence of a lead–acid battery, with an independent solar system and wind power generator. In the next step, in order to estimate the output power of the solar and wind resources, a novel forecast model is proposed. Then, the forecasting task is carried out considering the conditions related to the state of charge (SOC) of the batteries. The optimization algorithm used in this model is honey bee mating optimization (HBMO), which operates based on selecting the best candidates and optimization of the prediction problem. Using this algorithm, the SOC of the batteries will be in an appropriate range, and the number of on-or-off switching’s of the wind turbines and photovoltaic (PV) modules will be reduced. In the proposed method, the appropriate capacity for the SOC of the batteries is chosen, and the number of battery on/off switches connected to the renewable energy sources is reduced. Finally, in order to validate the proposed method, the results are compared with several other methods.

Renewable Energy Sources

IEE Review ◽  
1991 ◽  
Vol 37 (4) ◽  
pp. 152
Author(s):  
Kenneth Spring
Keyword(s):  
Renewable Energy ◽  
Renewable Energy Sources ◽  
Energy Sources

Power Projects and Covid-19: A Practical Analysis of the Relevance of Force Majeure Clauses under the Standardised Power Purchase and Implementation Agreements of Uganda

2020 ◽  
Vol 1 (2) ◽  
pp. 189-193
Author(s):  
Aisha Naiga ◽  
Loyola Rwabose Karobwa
Keyword(s):  
Renewable Energy ◽  
Renewable Energy Sources ◽  
Clean Energy ◽  
The State ◽  
Energy Sources ◽  
Policy Goals ◽  
Force Majeure ◽  
Practical Analysis ◽  
Energy Justice

Over 90% of Uganda's power is generated from renewable sources. Standardised Implementation Agreements and Power Purchase Agreements create a long-term relationship between Generating Companies and the state-owned off-taker guaranteed by Government. The COVID-19 pandemic and measures to curb the spread of the virus have triggered the scrutiny and application of force majeure (FM) clauses in these agreements. This article reviews the FM clauses and considers their relevance. The authors submit that FM clauses are a useful commercial tool for achieving energy justice by ensuring the continuity of the project, despite the dire effects of the pandemic. Proposals are made for practical considerations for a post-COVID-19 future which provides the continued pursuit of policy goals of promoting renewable energy sources and increasing access to clean energy, thus accelerating just energy transitions.

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