New challenges emerged from the development of more efficient electric energy generation units

2011 ◽  
Author(s):  
J. M. Prousalidis ◽  
G. J. Tsekouras ◽  
F. Kanellos
Keyword(s):  
Electric Energy ◽  
Energy Generation ◽  
New Challenges

scholarly journals Comparison of Solar Tracking and Solar Fix Mode on the Efficiency Electric Energy Generation Based on Microcontroller

2020 ◽  
Vol 537 ◽  
pp. 012030
Author(s):  
Dean Corio ◽  
Alvino Ramadian ◽  
Rheyuniarto Sahlendar Asthan ◽  
Mia Maria Ulfah
Keyword(s):  
Electric Energy ◽  
Energy Generation ◽  
Solar Tracking

Flywheel energy storage systems and their applications in power engineering

2021 ◽  
Vol 6 ◽  
pp. 26-34
Author(s):  
Vladimir Poltavets ◽  
Irina Kolchanova
Keyword(s):  
Renewable Energy ◽  
Energy Storage ◽  
Storage Systems ◽  
Renewable Energy Sources ◽  
Supply And Demand ◽  
Electric Energy ◽  
Energy Generation ◽  
Flywheel Energy Storage ◽  
Energy Storage Systems ◽  
Continuous Growth

The continuous growth of renewable energy sources has drastically changed the paradigm of electric energy generation and distribution. Flywheel energy storage systems are a clean and efficient method to level supply and demand in energy grids, including those incorporating renewable energy generation. Environmental safety, resilience, high power capacity and quality make flywheel energy storage very promising. This paper contains a review of flywheel energy storage systems, already being in operation, and applications of flywheel energy storage in general.

scholarly journals NEW PARAMETERS FOR THE FOREST BIOMASS WASTE ECOFIREWOOD MANUFACTURING PROCESS OPTIMIZATION

2019 ◽  
Vol 16 (32) ◽  
pp. 560-571
Author(s):  
Ana Cristina RUOSO ◽  
Lisiane Corrêa BITENCOURT ◽  
Lucas Urach SUDATI ◽  
Marcos Antônio KLUNK ◽  
Nattan Roberto CAETANO
Keyword(s):  
Pinus Taeda ◽  
Forest Biomass ◽  
Electric Energy ◽  
Chemical Characterization ◽  
Energy Generation ◽  
Economic Benefits ◽  
Production Costs ◽  
Raw Material ◽  
Forest Residues ◽  
Biomass Waste

Biomass has a large share in the energy generation matrix, due to the regional economic benefits. This work has as main objective to evaluate the parameters used in the manufacture of briquettes produced with forest residues and the economic engineering for the manufacturer. The forest residues were: wood chips and chips of Eucalyptus spp. and barks of Pinus taeda. The evaluations were the chemical characterization of forest residues and the costs involved in the briquetting process. The forest residues presented extractive chemical composition and lignin. The production costs of the briquettes were affected mainly by the equipment, being the Pinus taeda barks the one that presented higher production cost. However, the production costs obtained in this study are approximately 20% lower than the production costs using traditional methods for forest firewood. The energy value from biomass allows the reduction of the dependence of energy, which can be used for the generation of steam or electricity, for subsistence. A fact for energy conversion is to evaluate the material moisture. It is suitable to burn residues with moisture between 45 to 55%. The consumed electric energy is important to evaluate the total costs. The energy required depends on the quality of raw material and the system employed. Forest residues is an important source for eco firewood production, contributing to energy generation and decreasing of the solid waste stored at the company. In this way, the new parameters for briquetting biomass forest wastes shown in this work, which is an important stage of the process, make economically viable and environmentally suitable the eco firewood production.

scholarly journals Study of an Electric Energy Generation System from Exhaust Waste Recovery from an Internal Combustion Engine

2018 ◽  
Vol 16 (1) ◽  
pp. 51-58
Author(s):  
Jorge de-J. Lozoya-Santos ◽  
Jonathan Rivas Torres ◽  
Adán Sáenz Herrera ◽  
Julio C. Salinas-Maldonado ◽  
Eduardo Mariscal Hay ◽  
...  
Keyword(s):  
Internal Combustion Engine ◽  
Combustion Engine ◽  
Electric Energy ◽  
Energy Generation ◽  
Internal Combustion ◽  
Generation System ◽  
Waste Recovery

scholarly journals Estimating the Economic Impacts of Net Metering Schemes for Residential PV Systems with Profiling of Power Demand, Generation, and Market Prices

Energies ◽  
2018 ◽  
Vol 11 (11) ◽  
pp. 3222 ◽  
Author(s):  
Antans Sauhats ◽  
Laila Zemite ◽  
Lubov Petrichenko ◽  
Igor Moshkin ◽  
Aivo Jasevics
Keyword(s):  
Electric Energy ◽  
Energy Generation ◽  
Power Demand ◽  
Market Prices ◽  
Pv Systems ◽  
Billing System ◽  
Net Metering ◽  
Support Costs ◽  
Cost Of Energy ◽  
Long Time

This article analyses the influence of supporting scheme variants on the profitability of a projected investment of residential photovoltaic systems. The focus of the paper lies in evaluating the feasibility for the power system of solar power generation technologies to achieve a balance between energy generation and support costs in a more efficient way. The case study is based on a year-long time series of examples with an hourly resolution of electricity prices from the Nord Pool power market, in addition to the power demand and solar generation of Latvian prosumers. Electric energy generation and the consumption of big data from more than 100 clients were collected. Based on these data, we predict the processes for the next 25 years, and we estimate economic indicators using a detailed description of the net metering billing system and the Monte-Carlo method. A recommendation to change the current net system to a superior one, taking into account the market cost of energy, concludes the paper.

Sensing Signal and Energy Generation Analysis on a Flexoelectric Beam

2012 ◽  
Author(s):  
S. D. Hu ◽  
H. Li ◽  
H. S. Tzou
Keyword(s):  
Cantilever Beam ◽  
Coupling Effect ◽  
Mechanical Strain ◽  
Electric Energy ◽  
Energy Generation ◽  
Electric Polarization ◽  
Ambient Vibration ◽  
Electric Voltage ◽  
Flexoelectric Effect ◽  
Fourth Mode

Flexoelectricity is known as an electromechanical gradient coupling effect. The direct flexoelectric effect that can convert mechanical strain gradient into electric polarization (or electric field) plays an important role in charge generation in the situation when piezoelectricity is absent. This study focuses on the application of the direct flexoelectric effect based on a flexoelectric cantilever beam to investigate its effectiveness of sensing signal and energy generation. The dielectric cantilever beam is deposited with electrodes both on top and bottom surfaces to generate an electric voltage. The sensing mechanism of flexo-piezo-electric effect is analyzed and the expression of sensing signal is derived. Results show that the output sensing signal is only contributed by the flexoelectric effect while the piezoelectric effect is eliminated due to the symmetric bending strains through the beam thickness. The spatial distribution of sensing signal when the fully covered electrode is uniformly segmented to 10 patches is evaluated as an illustration, and the flexoelectric sensitivity of about 0.15V/mm for the first mode and 4V/mm for the fourth mode is achieved. The optimal sensing position is dependent of the electrode size and the vibration mode and in general, it locates where the difference between the slopes at two ends of the electrode patch reaches maximum. Based on the flexoelectric voltage, the energy generation power is also conducted when the flexoelectric cantilever beam is treated as distributed energy harvesters. As a result, the maximal power of RMS is about 1.5×10−8W/mm for the first mode and increases to about 0.6mW/mm for the fourth mode. It provides an alternative way to harvest electric energy from the ambient vibration without using piezoelectricity.

Development of a System to Monitor the Quality of Electric Energy Generation in Micro-scale

2018 ◽  
Vol 12 (8) ◽  
Author(s):  
Ernesto Guevara Leal Manicoba ◽  
Eliel da Costa Pinheiro ◽  
Jacques Cousteau da Silva Borges ◽  
Ricardo Ferreira Pinheiro Filho
Keyword(s):  
Electric Energy ◽  
Energy Generation ◽  
Micro Scale
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