scholarly journals The Application of Piezoelectric Sensor as Energy Harvester from Small-scale Hydropower

2018 ◽  
Vol 65 ◽  
pp. 05024
Author(s):  
Hidayatul Aini Zakaria ◽  
Chan Men Loon
Keyword(s):  
Renewable Energy ◽  
Water Waves ◽  
Fossil Fuels ◽  
Mechanical Energy ◽  
Renewable Energy Sources ◽  
Piezoelectric Sensor ◽  
Electrical Energy ◽  
Ocean Waves ◽  
Small Scale ◽  
Flowing Water

Renewable energy technology nowadays is advancing in research and application as an alternative for non-renewable energy sources including fossil fuels and coals since it is considerably less hazardous for the environment. In recent years, many studies to harvest energy from water energy including ocean waves and hydropower has been conducted. The inherent characteristic of the piezoelectric sensor which can convert mechanical energy to electrical energy has created an alternative to generate energy from renewable sources. The main aim of this research is to harvest energy from water movements which include self-generated water waves, automated water waves, flowing water and falling water. The piezoelectric sensor used in this research is a pressure-based piezoelectric sensor which means when there is a pressure exerted on the surface, it will generate electricity. A prototype was designed and simulated by Proteus software and the prototype was fabricated for energy harvesting from water movements. In this study, four methods had been used to harvest energy from small scale hydropower where two methods are from water waves generated from a hairdryer and ultrasonic cleaner and another two methods from falling water and flowing water. The results obtained shows that harvested energy from falling water gives the best results in which it has accumulated up to 13V in the same amount of time as compared to water waves and water flow.

Conversion of Electrical Power from Renewable Energy Sources

2010 ◽  
pp. 231-247
Keyword(s):  
Renewable Energy ◽  
Industrial Development ◽  
Fossil Fuels ◽  
Renewable Energy Sources ◽  
Electrical Power ◽  
Electrical Energy ◽  
Energy Sources ◽  
Direct Generation ◽  
Oil Gas

Towards the end of the previous century, the humanity understood very clearly two facts – first, the World supplies of fossil fuels (coal, oil, gas, uranium) are limited, and, second, industrial development and classical generation of electrical energy seriously endanger the environment. Renewable energy sources (sun energy, wind energy, bio fuels, etc.) are based on the use of natural fluxes of energy (Masters,2004). That is why they are considered to be inexhaustible. In specific cases of implementations, for example in lighting, a direct generation of electrical energy using photovoltaics is outlined as a long-term one.

Assessing the viability of microhydropower generation from the stormwater flow of the detention outlet in an urban area

2014 ◽  
Vol 14 (4) ◽  
pp. 664-671 ◽  
Author(s):  
Norashikin Ahmad Kamal ◽  
Heekyung Park ◽  
Sangmin Shin
Keyword(s):  
Mechanical Energy ◽  
Electrical Power ◽  
Electrical Energy ◽  
Assessment Method ◽  
Storm Water ◽  
Total Power ◽  
Small Scale ◽  
Flowing Water ◽  
Quality Of Water

Small-scale hydropower is the generation of electrical power of 10 MW or less from the transformation of kinetic energy in flowing water to mechanical energy in a rotating turbine to electrical energy in a generator. The technology is especially useful when installed with a stormwater infrastructure in countries teeming with abundant rainfall. It is upon this concept that this study is being pursued to assess the implementation of microhydropower within a stormwater infrastructure. In order to achieve sustainability of development, small-scale hydropower should be beneficial in the implementation of stormwater infrastructure, especially in countries that have abundant rainfall. The aim of this study is to provide an assessment method for microhydropower implementation within a stormwater infrastructure. PCSWMM software was used to simulate the flowing water at a detention outlet. Modification of the current detention pond was made to optimise the quantity and quality of water supplied to the turbine. Two important parameters in the modification design are quantity and quality of storm water, which optimise the energy generated. The total power that can be harnessed from the design is theoretically from 500 W to 0.5 MW. Therefore, it can be safely concluded that the implementation of microhydropower within a stormwater infrastructure is technologically feasible.

Energetic Assessment of a Local District Heating Network With a Small-Scale Trigeneration Plant: Comparison of Different Performance Indices

2015 ◽  
Author(s):  
Marco Badami ◽  
Armando Portoraro ◽  
Dario Savarese
Keyword(s):  
Renewable Energy ◽  
Hybrid Systems ◽  
Renewable Energy Sources ◽  
District Heating ◽  
Electrical Energy ◽  
Industrial Sector ◽  
Primary Energy ◽  
Small Scale ◽  
Thermal Generation ◽  
European Standards

Combined Heat and Power (CHP) is a technology that has been proven to be very effective in the industrial sector, when both thermal and electrical energy are required, as it allows a more rational use of the input primary energy. However, CHP technology is not limited to industrial uses, as it can also be effectively exploited in the civil sector, such as in District Heating (DH) applications. Moreover, in recent years the opportunity to develop hybrid systems, in which traditional and renewable energy sources are integrated, is gaining more and more consideration. For these reasons, the most recent European Standards propose a set of newly conceived indices whose aim is easily assessing the energetic performances of DH networks, but the effectiveness of these indices in the study of DH networks coupled with CHP and renewable energy systems has not yet been thoroughly investigated. This paper presents a comparative study, based on these indices, of different electrical and thermal generation technologies, with the aim of assessing their effectiveness when hybrid systems are analyzed. A CHP-DH application, actually installed and in operation in Turin, Italy, has also been considered in the analysis, in order to have a comparison with a real case. The results of the study are presented and discussed in detail in the following sections.

scholarly journals Design and Energy Requirements of a Photovoltaic-Thermal Powered Water Desalination Plant for the Middle East

2021 ◽  
Vol 18 (3) ◽  
pp. 1001
Author(s):  
Saeed Alqaed ◽  
Jawed Mustafa ◽  
Fahad Awjah Almehmadi
Keyword(s):  
Renewable Energy ◽  
Middle East ◽  
Fossil Fuels ◽  
Minimum Cost ◽  
Electrical Energy ◽  
Water Desalination ◽  
Small Scale ◽  
Remote Community ◽  
East Region ◽  
Middle East Region

Seawater or brackish water desalination is largely powered by fossil fuels, raising concerns about greenhouse gas emissions, particularly in the arid Middle East region. Many steps have been taken to implement solar resources to this issue; however, all attempts for all processing were concentrated on solar to electric conversion. To address these challenges, a small-scale reverse-osmosis (RO) desalination system that is in part powered by hybrid photovoltaic/thermal (PVT) solar collectors appropriate for a remote community in the Kingdom of Saudi Arabia (KSA) was designed and its power requirements calculated. This system provides both electricity to the pumps and low-temperature thermal energy to pre-heat the feedwater to reduce its viscosity, and thus to reduce the required pumping energy for the RO process and for transporting the feedwater. Results show that both thermal and electrical energy storage, along with conventional backup power, is necessary to operate the RO continuously and utilize all of the renewable energy collected by the PVT. A cost-optimal sizing of the PVT system is developed. It displays for a specific case that the hybrid PVT RO system employs 70% renewable energy while delivering desalinized water for a cost that is 18% less than the annual cost for driving the plant with 100% conventional electricity and no pre-heating of the feedwater. The design allows for the sizing of the components to achieve minimum cost at any desired level of renewable energy penetration.

scholarly journals POWER GENERATOR FROM OCEAN WAVE ENERGY CONVERSION

2021 ◽  
Vol 11 (2) ◽  
pp. 429-436
Author(s):  
Widi Aribowo ◽  
Achmad Imam Agung ◽  
Subuh Isnur Haryudo ◽  
Syamsul Muarif
Keyword(s):  
Renewable Energy ◽  
Power Plants ◽  
Mechanical Energy ◽  
Renewable Energy Sources ◽  
Electrical Energy ◽  
Energy Sources ◽  
Wave Power ◽  
Power Generator ◽  
Ocean Wave Energy ◽  
The Waves

The need for electrical energy has increased every year. On the other hand, the largest power plants in Indonesia still use non-renewable energy sources such as coal and petroleum, while these non-renewable energy sources will eventually run out. To anticipate running out of this energy, a renewable energy source is needed. This existence will not run out even though it is consumed every day. Renewable energy that can be used for conversion into electrical energy in coastal areas is wave power.  The waves that always crash on the shoreline can be used to drive turbines. The turbine rotates due to the crashing waves connected to a DC generator. It will convert mechanical energy into electrical energy. The electrical energy generated by the DC generator is used to charge the battery. The purpose of this research is the know-how to design a wave power generator and to determine the performance. The experimental method is used in this study. In the results, the generator works optimally during the day with the resulting voltage of 10.6 V to 10.7 V with rotation speed of 623 Rpm to With 710 Rpm.

Multi-Criteria Analysis, Evaluation and Modeling of Future Scenario for the Energy Generation Sector — A Case Study

2014 ◽  
Author(s):  
Seyed Aliakbar Mirmohammadi ◽  
Mohammad Reza Behi ◽  
Alexander B. Suma ◽  
Björn E. Palm
Keyword(s):  
Renewable Energy ◽  
Fossil Fuels ◽  
Renewable Energy Sources ◽  
Energy Generation ◽  
Current Status ◽  
Small Scale ◽  
Biomass Waste ◽  
University Of Technology ◽  
Solid Biomass

Renewable energy continues to attract much interest due to the depletion of fossil fuels and unsettled political disputes. This study aims to evaluate the current status of energy generation on the campus of Eindhoven University of Technology (TU/e). Furthermore, it looks for ways for the TU/e to improve sustainability by finding and proposing alternative solutions. Therefore, a broad scope of various renewable energy sources (RES) has been investigated. From many aspects, the analysis of RES proves that biomass is the most appropriate source of renewable energy for the TU/e campus. Thus, the capability of harvestable biomass fuel in energy generation throughout a year has been investigated for this project, and it has been concluded that solid biomass waste from the campus can provide 1314 MWh heat load annually. In order to achieve as much energy from biomass as possible, a combined heat and power unit (CHP), in order to produce both heat and electricity for new student houses on the campus, has been modeled. Finally, the project results show that a small-scale CHP cycle is capable of producing 366 MWh electricity, as well as 772 MWh heat, annually.

Stirling Engines Powered by Renewable Energy Sources

2016 ◽  
Vol 831 ◽  
pp. 263-269
Author(s):  
Jacek Kropiwnicki ◽  
Aleksandra Szewczyk
Keyword(s):  
Renewable Energy ◽  
Low Temperature ◽  
Electric Power ◽  
Mechanical Energy ◽  
Renewable Energy Sources ◽  
Electrical Energy ◽  
Stirling Engine ◽  
Working Fluid ◽  
Energy Sources ◽  
Stirling Engines

Stirling engine is a device that produces mechanical energy using heat from any source of energy, without the need of combustion of any fuel inside the device. Renewable energy sources, which are mostly low-temperature energy sources, can be used to produce mechanical and electrical energy in Stirling engines. The paper presents an overview of the existing prototype Stirling engines designed for using of low-temperature energy sources, including renewable energy sources. Commercial devices for electric power generation offered for use in home, usually do not exceed 1 kW. Using the Schmidt model, the analyze of influence of temperature working fluid in the expansion space (heater) on the efficiency and the electric power generated in the Stirling engine of alpha type has been presented in the paper.

Weibull distribution for determination of wind analysis and energy production

2015 ◽  
Vol 12 (3) ◽  
pp. 215-220 ◽  
Author(s):  
Faruk Oral ◽  
İsmail Ekmekçi ◽  
Nevzat Onat
Keyword(s):  
Renewable Energy ◽  
Wind Energy ◽  
Wind Turbines ◽  
Energy Production ◽  
Fossil Fuels ◽  
Renewable Energy Sources ◽  
Electrical Energy ◽  
Energy Sources ◽  
Energy Potential ◽  
Electrical Energy Production

In recent years, decreasing reserves and environmental problems related with fossil fuels have increased the demand for clean and renewable energy sources, as with all over the world and also in Turkey. Wind energy is the one of the most rapidly growing among the renewable energy sources in terms of technological and utilization. Turkey is one of the rich countries in Europe in respect to wind energy potential. Productive and effective use of this potential is very important for Turkey that is depended on foreign countries especially in respect to fossil energy sources. Wind speed values are the most important data in calculation of electrical energy from wind turbines. In this study, latest developments and energy-power equations related to wind turbines are investigated. Using of the data obtained from the wind measurement station installed in Sakarya-Esentepe region, annual electrical energy production of an example wind plant is predicted.

scholarly journals Contemporary and Practicable Technique to Produce Electricity using Waves

2019 ◽  
Vol 8 (6S3) ◽  
pp. 1329-1333
Keyword(s):  
Renewable Energy ◽  
Wave Energy ◽  
Mechanical Energy ◽  
Research Work ◽  
Electrical Energy ◽  
Ocean Waves ◽  
Ocean Wave ◽  
Energy Technologies ◽  
Ocean Wave Energy ◽  
Main Components

Ocean waves are huge, large untapped energy resources and the potential for extracting energy from waves is considerable. Ocean wave energy can play a dynamic role for producing electricity as fresh source of renewable energy to the off-grid power connection in remote areas. There are number of research work going across and around the coastlineto generate electrical energy from the ocean waves. Wave energy conversion technologies are important and lead to more research work in future.Wave energy converters converts the mechanical energy obtained from ocean waves to electricity. Researches in this area are driven for the need to meet demand in electricity but it is relatively immature compared to other renewable energy technologies. This proposed paper aims to develop a prototype that can utilize the wave energy to produce electricity. Wave energy generator has been developed and the results are analysed for different specifications of converter and also presented. From the experimental setup it is assured that slowly varying power generation is obtained from ocean wave. This paper also comprises working and main components of the system.

scholarly journals Analisis Karakteristik Kelistrikan Campuran Belimbing Wuluh dan Jeruk Lemon Sebagai Sumber Listrik

2020 ◽  
Vol 8 (2) ◽  
pp. 189-194
Author(s):  
Dady Sulaiman ◽  
◽  
Wibowo Romadhoni ◽  
Arlina Arlina ◽  
◽  
...  
Keyword(s):  
Renewable Energy ◽  
Fossil Fuels ◽  
Renewable Energy Sources ◽  
Electrical Power ◽  
Average Power ◽  
Electrical Energy ◽  
Graphical Form ◽  
Energy Sources ◽  
Citrus Limon ◽  
Electrolysis Method

Electrical energy is one of the primer facilities used in every activity. Almost all the existing facilities use electricity. This is inversely proportional to the depleting energy source. The solution to this problem is to replace fossil fuels with renewable energy sources. Renewable energy is a source of energy that can be recycled and does not damage the environment. One type of renewable energy is to use the electrolysis method. Electrolysis Method is one of the renewable energy sources. This method uses electrolyte solution which can be found in sour and runny fruit such as lemon (Citrus Limon L.) and Wuluh Star fruit (Averrhoa bilimbi). The study was conducted in a laboratory by mixing the results of the juice of the two fruits with different compositions. The mixes are placed in the arcs (a mixture container to test the electrical properties) and then tested using a multimeter every 2 hours for 24 hours. The results are described in graphical form. The average power of each mixture is, C1 = 2.2mW, C2 = 4.7mW, and C3 = 8.5 mW and based on the graph, each mixture has decreased voltage and current. Even so among the three mixtures, the third mixture has a better electrical power value than the other two mixes. This shows that the higher the acidity of a solution the higher the electricity produced.

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