scholarly journals Economic growth and environmental sustainability from renewable energy applications

2020 ◽  
pp. 014459872096420
Author(s):  
Chih-Chun Kung ◽  
Tsung-Ju Lee ◽  
Li-Jiun Chen
Keyword(s):  
Renewable Energy ◽  
Environmental Sustainability ◽  
Wind Farm ◽  
Clean Energy ◽  
Global Scale ◽  
Solar Panels ◽  
Hydro Power ◽  
Energy Applications ◽  
Plastic Materials ◽  
Sewer Sludge

The use of fossil fuel causes severe environmental problem such as climate change in the global scale and acid rain in the regional level. Along with its nonrenewable property, renewable and clean energy sources must be explored so as to keep the economy growing sustainably. Nowadays many renewable energy alternatives such as bioenergy, solar power, hydro power, and wind power have been employed, and each of them has their own pros and cons. This special issue focuses on the use of urban and rural wastes in several aspects such as (i) the use agricultural residuals in bioenergy production; (ii) treatments of municipal solid waste in pyrolysis and biochar application; (iii) sewer sludge and other organic matters in renewable energy production; and (iv) plastic materials in wind farm construction and production of solar panels, to assist the production of renewable energy to improve the resource management and maintain the environment.

scholarly journals Renewable Energy (RE) and Theory on Business Sustainability: Malaysia Policy Development

2019 ◽  
Vol 8 (6S3) ◽  
pp. 623-627 ◽  
Keyword(s):  
Renewable Energy ◽  
Environmental Sustainability ◽  
Policy Development ◽  
Critical Analysis ◽  
Clean Energy ◽  
Future Generation ◽  
Policy Makers ◽  
Business Sustainability ◽  
Corporate Managers ◽  
Development Plans

Sustainable energy is described as energy that meets the present demand without jeopardizing the needs of future generation. Sustainable development of energy has become the main focus of recent national policies, strategies and development plans of many countries. Renewable energy (RE) is brought to play as it is deemed sustainable and has the potential to thrive in the vastly competitive market of contemporary business. Growing deployment of RE resources in businesses will provide an impetus to accelerate the drive towards clean energy as well as interest and funding for research and development works. In Malaysia, RE was introduced into the energy mix through the Five Fuel Diversification Policy in 2000 and its share has been growing ever since. This article offers a critical analysis of the developing theories linking environmental sustainability to businesses practice, and discusses their implications on Malaysia’s policy development toward RE. The extensive review presented in this work offers a useful reference for policy makers, corporate managers and researchers who have vested interest in business sustainability and renewable energy related studies.

scholarly journals The assessment of the Bostanliq district (Uzbekistan Republic) based on the wind energy potential

2021 ◽  
Vol 27 (2) ◽  
pp. 165-175
Author(s):  
Maria Yalbacheva
Keyword(s):  
Renewable Energy ◽  
Power Plants ◽  
Wind Farm ◽  
Renewable Energy Sources ◽  
Wind Farms ◽  
Clean Energy ◽  
Transport Infrastructure ◽  
Energy Sources ◽  
Energy Potential ◽  
The Government

The idea of achieving energy security and lowering the dependence on the global hydrocarbon market is at the top of the agenda in many countries. Most of them consider switching from traditional energy sources to renewable ones as one of the ways to reduce fuel import. This concept absolutely conforms to one of the UN Sustainable Development Goals (Goal no. 7, “Affordable and Clean Energy”). In May 2019, the Government of Uzbekistan Republic adopted the law on the Use of Renewable Energy Sources (RES). By 2030, Uzbekistan is going to increase the share of RES in the total structure of electricity generation up to 25 % (currently it is at 10 %), by building solar and wind farms with a total installed capacity of 5,000 MW and 3,000 MW, respectively. The energy-deficient Bostanliq district of the Tashkent region has become one of the places of interest, where transport infrastructure, recreation services, and renewable energy will be developed. The purpose of this study was a multivariate analysis, considering the meteorological, ecological, and socio-economic characteristics of the Bostanliq district, leading to the selection of the optimal location for the wind farm. The assessment map based on the results of this analysis made it possible to identify areas that are most suitable for the location of wind power plants. The assessment method, that was used in this work, is also applicable to other regions of the world.

scholarly journals Mine Water for the Generation and Storage of Renewable Energy: A Hybrid Hydro–Wind System

2021 ◽  
Vol 18 (13) ◽  
pp. 6758
Author(s):  
Héctor Álvarez ◽  
Guillermo Domínguez ◽  
Almudena Ordóñez ◽  
Javier Menéndez ◽  
Rodrigo Álvarez ◽  
...  
Keyword(s):  
Renewable Energy ◽  
Mine Water ◽  
Wind Farm ◽  
Renewable Energy Sources ◽  
Energy Resource ◽  
Clean Energy ◽  
Mining Area ◽  
North West ◽  
Hydroelectric Energy ◽  
Current Transition

Mine water is normally considered as waste that has to be managed. However, new applications are increasingly being sought for the water that floods mining voids, especially in relation to its use as an energy resource. The worldwide energy market, within the current transition framework, is searching for creative approaches to produce and store clean energy. In particular, underground pumped hydroelectric energy storage systems (UPHS) constitute efficient and flexible alternatives to deal with intermittent renewable energy sources. In this work, a UPHS is designed using the mine water and the voids of a closed coal mine in Asturias (North-west Spain) as a lower reservoir. Moreover, this system is combined with a wind energy generation facility and the efficiency of the hybrid system is evaluated. With an investment cost of EUR 193 M, a 40 MW UPHES joined to a 60 MW wind farm would generate benefits of about EUR 54 M in 40 years. The reduction in CO2 emissions (29,000 equivalent tons per year) and the social benefits in a traditional mining area are other intangible advantages of this system.

scholarly journals Reduction of Voltage Ripple in DC Link of Wind Energy Conservation System Using Modified DC-DC Boost Converter

2021 ◽  
Author(s):  
L. Hubert Tony Raj ◽  
R. Sivakumar ◽  
R. Akash ◽  
M. Anandha Chakravarthi
Keyword(s):  
Renewable Energy ◽  
Demand Curve ◽  
Renewable Energy Sources ◽  
Clean Energy ◽  
Vertical Axis ◽  
Power Converter ◽  
Solar Pv ◽  
Vertical Axis Wind Turbine ◽  
Energy Applications ◽  
Hybrid Renewable Energy

Renewable energy provisions must be extracted in a more resourceful way, with a power converter added to the mix. If the supply-demand curve rises with the seasons, it becomes clear that renewable energy sources are used to provide clean energy. This clean energy cannot be used on load directly due to fluctuating conditions, to solve this problem a modified DC to DC converter with a ripple-free output is introduced. The Vertical Axis Wind Turbine (VAWT) and Solar PV were combined to achieve a constant DC output in a hybrid renewable energy conversion system. For renewable energy applications, a redesigned converter with ripple-free output is used. The simulation is made under MATLAB/SIMULINK and experimental parameters were measured using a nominal prototype.

scholarly journals Exposing Engineering Students To Renewable Energy Through Hands-On Experiments

2013 ◽  
Vol 4 (2) ◽  
pp. 127-140
Author(s):  
Yonggao Yang ◽  
Lin Li
Keyword(s):  
Renewable Energy ◽  
Teaching Methods ◽  
Engineering Students ◽  
Interdisciplinary Collaboration ◽  
Clean Energy ◽  
Business World ◽  
Energy Education ◽  
Energy Applications ◽  
Energy Technologies ◽  
Hands On

Renewable energy is the most rapidly growing discipline in today’s business world and is commonly viewed as the main arena for research and development in various fields. This article summarizes the work and efforts of an educational project conducted at Prairie View A&M University (PVAMU). A major goal of the project was to design renewable energy laboratories and expose engineering students to clean energy technologies. Through this project, the investigators engaged students in renewable energy applications through hands-on experiments, encouraged interdisciplinary collaboration, and better prepared students to enter the energy workforce. Meanwhile, the project also benefited engineering educators by exploring effective teaching methods in energy education. 

scholarly journals A Harmony Search Method for the Estimation of the Optimum Number of Wind Turbines in a Wind Farm

Energies ◽  
2020 ◽  
Vol 13 (11) ◽  
pp. 2777
Author(s):  
Christos A. Christodoulou ◽  
Vasiliki Vita ◽  
George-Calin Seritan ◽  
Lambros Ekonomou
Keyword(s):  
Renewable Energy ◽  
Wind Turbines ◽  
Wind Farm ◽  
Renewable Energy Sources ◽  
Harmony Search ◽  
Wind Farms ◽  
Clean Energy ◽  
Search Method ◽  
Specific Power ◽  
Optimum Number

During the last decades, renewable energy production has significantly increased in an effort to produce clean energy that will not affect the environment. Governments around the world are focusing on reducing greenhouse gas emissions by increasing the utilization of renewable energy sources in the power chain. Wind farms and wind generators are the main renewable technology that are used worldwide. The main scope of wind farm designers is the achievement of the maximum possible power, restraining the installation cost that is related to the use of a specific number of wind turbines for specific power production, and considering the area of land to be occupied. A harmony search method is presented in this paper for the determination of the optimum number of wind turbines in a wind farm and the total electric power produced. The method is applied for comparison purposes on data from previously published methodologies proving its accuracy and effectiveness. The harmony research method can be used in the studies of wind farm designers aiming to reduce installation costs.

scholarly journals Evaluation of the Operating Efficiency of a Hybrid Wind–Hydro Powerplant

2020 ◽  
Vol 12 (2) ◽  
pp. 668 ◽  
Author(s):  
Francisco Briongos ◽  
Carlos A. Platero ◽  
José A. Sánchez-Fernández ◽  
Christophe Nicolet
Keyword(s):  
Renewable Energy ◽  
Power Plant ◽  
Reasonable Agreement ◽  
Wind Farm ◽  
Operating Efficiency ◽  
Hydro Power ◽  
Operational Strategies ◽  
Twofold Increase ◽  
The Difference ◽  
Pumped Storage

This paper analyzes the operating efficiency of a hybrid wind–hydro power plant located in El Hierro Island. This plant combines a wind farm (11.48 MW) and a pumped storage power plant (11.32 MW). It was built with the aim of supplying the island demand from renewable energy instead of using existing diesel units. The paper discusses several operational strategies and proposes an efficiency metric. Using 10 min data, the operation of this power plant has been simulated. From these simulations (more than 50,000 for a year), the operating efficiency and the percentage of demand covered from renewable energy is obtained. The difference between the worst and the best strategy is a twofold increase in efficiency. Moreover, the results of the simulations are compared with the system operational history since June 2015 (when the wind–hydro power plant started operation) until 2018. These comparisons show a reasonable agreement between simulations and operational history.

Theme Park of Renewable Energies in the District of Tomas with an Ecotouristic Approach-Perú

2020 ◽  
Vol 17 (11) ◽  
pp. 5020-5024
Author(s):  
Ciro Rodriguez ◽  
Doris Esenarro ◽  
Jorge Jave ◽  
Fabiola Martínez ◽  
Juan Puma ◽  
...  
Keyword(s):  
Renewable Energy ◽  
Renewable Resources ◽  
Environmental Sustainability ◽  
Architectural Design ◽  
Organic Waste ◽  
Clean Energy ◽  
Renewable Energies ◽  
Theme Park ◽  
Interactive Education ◽  
Sunlight Radiation

The proposal of a renewable energy theme park aims to sensitize the use of clean energy, the integration of ecotourism as an economic activity and environmental sustainability of the population of Tomas in Peru, to turn it into an identity reference point regional and local. For this, the green axis is composed of a series of elements such as thematic squares, vegetation segments, recreation, and incorporation of renewable energies. The bioclimatic architectural design of the theme park is related to the balance of nature’s surroundings, so a series of renewable energy prototypes is proposed in a theme park that takes advantage the use of natural resources from sunlight, radiation, winds, organic waste, among others, which are the components of the proposal. Likewise, interactive education is considered among the resident population of Tomas, and with their renewable resources are the pillars, to sensitize visitors, in caring for the environment.

scholarly journals Application of TOPSIS Approach to Multi-Criteria Selection of Wind Turbines for On-Shore Sites

2020 ◽  
Vol 10 (21) ◽  
pp. 7595
Author(s):  
Shafiqur Rehman ◽  
Salman A. Khan ◽  
Luai M. Alhems
Keyword(s):  
Renewable Energy ◽  
Energy Production ◽  
Selection Criteria ◽  
Wind Farm ◽  
Global Scale ◽  
Decision Criteria ◽  
Topsis Approach ◽  
North Western ◽  
Selection Of

The remarkable developments in renewable energy at the global scale have paved the way for a sustainable future and cleaner environment. As a fundamental element of this renewable energy revolution, wind energy has received tremendous attention worldwide. In order to harness maximal energy from a wind farm, one crucial decision is the selection of a turbine that is most compatible with the geographical and topographical characteristics of the location under consideration. This selection mechanism ideally considers multiple conflicting decision criteria—i.e., an improvement in one criterion negatively impacts one or more other criteria. Therefore, a tradeoff solution is desired in which the selection criteria are simultaneously optimized to the best achievable limits. Considering the above observations, this paper proposes a TOPSIS (the technique for order of preference by similarity to ideal solution)-based wind turbine selection approach. The problem is modeled as a multi-criteria decision problem while considering hub height, wind speed, percentages of zero and rated output, and annual energy production as the decision criteria. A case study is shown for data collected from two potential sites in northern and north-western Saudi Arabia. Fifteen turbines with rated capacities ranging from 1.5 to 3 MW from various manufacturers were evaluated. Results indicate that the TOPSIS approach was effective in identifying the best turbines for each site. Furthermore, the proposed approach helped in identifying the similarities in the behavior of turbines for the two sites. A comparison of the TOPSIS approach with other multi-criteria decision-making techniques proved the robustness of the method.

scholarly journals Monitoring Floating Solar Tracker Based on Axis Coordinates using LoRa Network

2020 ◽  
Vol 9 (2) ◽  
pp. 141-149
Author(s):  
Abyan Arief Fernandez ◽  
Andrian Rakhmatsyah ◽  
Aulia Arif Wardana
Keyword(s):  
Renewable Energy ◽  
Solar Energy ◽  
Long Range ◽  
Rural Areas ◽  
Clean Energy ◽  
Solar Panel ◽  
Solar Panels ◽  
Energy Monitoring ◽  
Solar Tracker ◽  
The Cost

This research aimed to build a solar tracker for a floating solar panel and used long–range (LoRa) communication to harvest energy and monitor its process. With the rising demand for renewable energy in these recent years especially for solar energy, it needs to meet this demand to remain relevant for the upcoming years where it will have an even larger impact as we shift into clean energy. Monitoring single–axis solar trackers on rural areas difficult and cost–intensive. The purpose of a floating solar farm is to reduce the cost from buying/renting land. Floating solar panels cannot be monitored using wired because they are moving nodes in the water, it makes wired installation complicated. Hence, using wireless sensornetwork is a solution that allowsremote monitoring of floating solar panels in rural areas and makes moving nodes mentioned above possible. Testing wasperformed by sending 100 packets from the node to its gateway using LoRa modulation, and the gateway successfully received about 90% of the packets sent by the node. The vertical single-axis solar tracker used in floating solar managed to get 17% more energy than the fixed solar with a more stable income for the whole duration of sending 100 packets.©2020. CBIORE-IJRED. All rights reserved

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