scholarly journals Multi-Criteria Decision-Making Approach for the Sustainable Autonomous Energy Generation through Renewable Sources. Studying Zakynthos Island in Greece

2017 ◽  
Vol 7 (1) ◽  
pp. 52 ◽  
Author(s):  
Ioannis Vardopoulos
Keyword(s):  
Energy Source ◽  
Renewable Energy Source ◽  
Decision Making ◽  
Renewable Energy ◽  
Energy Demand ◽  
Hydroelectric Power Station ◽  
Multi Criteria Decision Making ◽  
Hydroelectric Power ◽  
Power Station ◽  
Economic Point

Nowadays, energy demand is considered a notable world problem. The purpose of this study is to define, document and finally select an option of only one renewable energy source system, as to which is considered the most suitable solution from an environmental, social and economic point of view, for the energy independence of Zakynthos Island in Greece. This study examines the following alternatives; Biofuels Production Station, Geothermal Power Station, Hydroelectric Power Station, Solar Power Station and Wind Power Station. In order to determine the optimal renewable energy source, a multi-criteria decision-making approach is followed. The three pillars of sustainability, namely, the environment, the economy and the society, were used as the primary criteria in the context of the under determination goal. A significant number of environmental, economic and social sub-criteria were also developed and were subject to weight evaluation using both pairwise comparison and evaluation through structured interviews. Results, with regard to the delimitations set for the scope of the current study, indicate that solar energy source system is the optimal sustainable alternative.

Solving renewable energy source selection problems using a q-rung orthopair fuzzy-based integrated decision-making approach

2021 ◽  
Vol 279 ◽  
pp. 123329
Author(s):  
R. Krishankumar ◽  
S. Supraja Nimmagadda ◽  
Pratibha Rani ◽  
Arunodaya Raj Mishra ◽  
K.S. Ravichandran ◽  
...  
Keyword(s):  
Energy Source ◽  
Renewable Energy Source ◽  
Decision Making ◽  
Renewable Energy ◽  
Selection Problems ◽  
Source Selection ◽  
Integrated Decision Making

scholarly journals Multi-Criteria Method for the Selection of Renewable Energy Sources in the Polish Industrial Sector

Energies ◽  
2021 ◽  
Vol 14 (9) ◽  
pp. 2386
Author(s):  
Robert Ulewicz ◽  
Dominika Siwiec ◽  
Andrzej Pacana ◽  
Magdalena Tutak ◽  
Jarosław Brodny
Keyword(s):  
Energy Source ◽  
Renewable Energy Source ◽  
Decision Making ◽  
Renewable Energy ◽  
Fuzzy Ahp ◽  
Renewable Energy Sources ◽  
Industrial Sector ◽  
Strategic Decision ◽  
Advantages And Disadvantages ◽  
Industrial Enterprises

Rational decision-making requires assessing the advantages and disadvantages of options, including nonmarket effects (such as environmental effects). This also applies to strategic decision-making in the industrial sector to select alternative renewable energy source (RES). Often, a variety of criteria can be used to select a renewable energy source, whereas no ideal family of criteria for renewable energy selection for industry has been defined in the literature. It was concluded that there is a need to support the actions of industrial development based on RES, which will contribute significantly to overcoming the limitations of the negative effect on the environment in terms of greenhouse gas emissions. There is a clear need for a systematic and polyvalent multicriteria approach to planning in industry. Therefore, a method for choosing the preferred renewable source of electricity for industry has been developed, which considers key criteria of RES choice: Expert opinions, the costs of obtaining the energy and maintaining energy installations, and the volume of electricity from RES. This article offers a modified multicriteria selection method based on a fuzzy analytic hierarchy process (fuzzy AHP) and the technique for preference by similarity to an ideal solution (TOPSIS), integrated with a qualitative price analysis (ACJ). This new method was tested through a case study on selecting a preferred RES in Polish industrial conditions. The research results indicate that the proposed method of choosing the preferred renewable energy source can be used in industrial enterprises that strive to meet their energy needs in accordance with the principles of social responsibility.

scholarly journals PLANS FOR THE CONSTRUCTION OF THE CHEBOKSARY HYDROELECTRIC POWER STATION IN THE 1940s

2021 ◽  
pp. 127-132
Author(s):  
Elena K. Mineeva ◽  
Nadezhda G. Rusinova
Keyword(s):  
Decision Making ◽  
Hydroelectric Power Plant ◽  
Hydroelectric Power Station ◽  
Hydroelectric Power ◽  
Labor Costs ◽  
Power Station ◽  
Material Resources ◽  
Power Stations ◽  
Archival Documents ◽  
Scientists And Engineers

In the year of Cheboksary hydroelectric power station’s anniversary, the authors of the article aim to investigate the issue of the waterworks facility’s formation in the early 40s of the last century. Based on the principles of historicism and objective analysis, the main stages of implementing the HPP construction plan are considered. The article presents archival documents which examine the problems of decision-making on the construction of the object. The issue of constructing hydroelectric power stations on the Volga, in particular in the territory of Chuvashia, was studied in the specially created Bureau «The Great Volga». Simultaneously with the construction of Cheboksary HPP, the construction of two more stations – Yaroslav­skaya and Balakhninskaya – was considered. The authors present comparative characteristics of the objects. Cheboksary hydroelectric power plant in terms of its performance significantly exceeded other structures. The article notes that prior to the construction of the station, a lot of preparatory and survey work was carried out, which was limited by a tight deadline. As a result of examining the scope of work, material resources and labor costs, the construction of the station was postponed to a later date. Scientists and engineers recognized the priority need to build less powerful stations. The materials of the article can be used for further research of this topic, as well as when writing regional natural history works.

scholarly journals Investigation of Biofuel as a Potential Renewable Energy Source

Atmosphere ◽  
2021 ◽  
Vol 12 (10) ◽  
pp. 1289
Author(s):  
M. Anwar H. Khan ◽  
Sophia Bonifacio ◽  
Joanna Clowes ◽  
Amy Foulds ◽  
Rayne Holland ◽  
...  
Keyword(s):  
Energy Source ◽  
Renewable Energy Source ◽  
Renewable Energy ◽  
Energy Demand ◽  
Fossil Fuels ◽  
Renewable Energy Sources ◽  
Production Costs ◽  
Biofuel Production ◽  
Aviation Industry ◽  
The Impact

An accelerating global energy demand, paired with the harmful environmental effects of fossil fuels, has triggered the search for alternative, renewable energy sources. Biofuels are arguably a potential renewable energy source in the transportation industry as they can be used within current infrastructures and require less technological advances than other renewable alternatives, such as electric vehicles and nuclear power. The literature suggests biofuels can negatively impact food security and production; however, this is dependent on the type of feedstock used in biofuel production. Advanced biofuels, derived from inedible biomass, are heavily favoured but require further research and development to reach their full commercial potential. Replacing fossil fuels by biofuels can substantially reduce particulate matter (PM), carbon monoxide (CO) emissions, but simultaneously increase emissions of nitrogen oxides (NOx), acetaldehyde (CH3CHO) and peroxyacetyl nitrate (PAN), resulting in debates concerning the way biofuels should be implemented. The potential biofuel blends (FT-SPK, HEFA-SPK, ATJ-SPK and HFS-SIP) and their use as an alternative to kerosene-type fuels in the aviation industry have also been assessed. Although these fuels are currently more costly than conventional aviation fuels, possible reduction in production costs has been reported as a potential solution. A preliminary study shows that i-butanol emissions (1.8 Tg/year) as a biofuel can increase ozone levels by up to 6% in the upper troposphere, highlighting a potential climate impact. However, a larger number of studies will be needed to assess the practicalities and associated cost of using the biofuel in existing vehicles, particularly in terms of identifying any modifications to existing engine infrastructure, the impact of biofuel emissions, and their chemistry on the climate and human health, to fully determine their suitability as a potential renewable energy source.

scholarly journals Microcontroller-Based Strategies for the Incorporation of Solar to Domestic Electricity

Energies ◽  
2019 ◽  
Vol 12 (14) ◽  
pp. 2811 ◽  
Author(s):  
Nkateko E. Mabunda ◽  
Meera K. Joseph
Keyword(s):  
Energy Source ◽  
Renewable Energy Source ◽  
Renewable Energy ◽  
Low Power ◽  
Energy Demand ◽  
Reducing Power ◽  
Control Circuit ◽  
Heating Element ◽  
Alternative Methods ◽  
Domestic Electricity

Microcontrollers have been largely used in applications that include reducing power consumption. Microcontroller development tools are now readily available. Many countries are faced with energy challenges such as lack of enough power capacity and growth in energy demand. It is therefore important to introduce innovative methods to reduce reliance on national grid energy and to supplement this source of energy with alternative methods. In this study, the microcontroller is used to monitor the energy consumed by household equipment and then decide, based on the power demand and available solar energy, the type of energy source to be used. In this research, a special circuit was also designed to control geyser power and align it to the capacity of the renewable energy source. This geyser control circuit includes a Dallas temperature sensor and a triode for alternating current (TRIAC) circuit that is included to control output current drawn from a low power, renewable energy source. Alternatively, two heating elements may be used instead of the TRIAC circuit. The first heating element is powered by solar to maintain the water temperature and to save energy. The second heating element is powered by national grid power and is used for the initial heating, and therefore saves water heating time. The strategy used was by adding a programmed microcontroller-based control circuit and a low power element or one current controlled element to a geyser whereby Photovoltaic (PV) energy was used to save the energy geysers consume from the domestic electricity source when they are not in use. A microcontroller, current sensor, battery level sensor, and relay board was used to incorporate solar-based renewable energy to the commercial energy supply.

Utilization of pomegranate waste-peel as a novel substrate for biodiesel production by Bacillus cereus (MF908505)

2020 ◽  
Vol 4 (3) ◽  
pp. 1199-1207
Author(s):  
Amruta P. Kanakdande ◽  
Chandrahasya N. Khobragade ◽  
Rajaram S. Mane
Keyword(s):  
Energy Source ◽  
Renewable Energy Source ◽  
Renewable Energy ◽  
Bacillus Cereus ◽  
Fossil Fuels ◽  
Biodiesel Production ◽  
Energy Needs

The continuous rising demands and fluctuations in the prices of fossil fuels warrant searching for an alternative renewable energy source to manage the energy needs.

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