The development of electrical energy conversion tools as learning media for the concept of energy sources

Inverter technology as the key part of using new energy technology, can be very effective to new energy sources such as solar, battery and fuel cell energy conversion of ac electrical energy transform into ac power, and can be connected to the grid. Therefore, the inverter technology has an extremely important statue in modern society.

Download Full-text

Design of Electric Vehicle Fast Energy Storage and Electrical Energy Conversion System

Future Energy, Environment and Materials ◽

10.2495/feem130471 ◽

2014 ◽

Author(s):

Yi Yang ◽

Xiaofeng Peng ◽

Chuan Yang ◽

Junjie Ye

Keyword(s):

Energy Storage ◽

Energy Conversion ◽

Electric Vehicle ◽

Electrical Energy ◽

Conversion System ◽

Energy Conversion System

Download Full-text

Transport Parameter Correlations for Digitally Created PEFC Gas Diffusion Layers by Using OpenPNM

Processes ◽

10.3390/pr9071141 ◽

2021 ◽

Vol 9 (7) ◽

pp. 1141

Author(s):

Ángel Encalada-Dávila ◽

Mayken Espinoza-Andaluz ◽

Julio Barzola-Monteses ◽

Shian Li ◽

Martin Andersson

Keyword(s):

Fuel Cell ◽

Energy Conversion ◽

Transport Phenomena ◽

Electrical Energy ◽

Gas Diffusion ◽

Polymer Electrolyte Fuel Cell ◽

Carbon Paper ◽

Transport Parameter ◽

Transport Parameters ◽

Depth Analysis

A polymer electrolyte fuel cell (PEFC) is an electrochemical device that converts chemical energy into electrical energy and heat. The energy conversion is simple; however, the multiphysics phenomena involved in the energy conversion process must be analyzed in detail. The gas diffusion layer (GDL) provides a diffusion media for reactant gases and gives mechanical support to the fuel cell. It is a complex medium whose properties impact the fuel cell’s efficiency. Therefore, an in-depth analysis is required to improve its mechanical and physical properties. In the current study, several transport phenomena through three-dimensional digitally created GDLs have been analyzed. Once the porous microstructure is generated and the transport phenomena are mimicked, transport parameters related to the fluid flow and mass diffusion are computed. The GDLs are approximated to the carbon paper represented as a grouped package of carbon fibers. Several correlations, based on the fiber diameter, to predict their transport properties are proposed. The digitally created GDLs and the transport phenomena have been modeled using the open-source library named Open Pore Network Modeling (OpenPNM). The proposed correlations show a good fit with the obtained data with an R-square of approximately 0.98.

Download Full-text

Design of Solar System for LTE Networks

International Journal of Environmental Sustainability and Green Technologies ◽

10.4018/ijesgt.2020070101 ◽

2020 ◽

Vol 11 (2) ◽

pp. 1-15

Author(s):

Naglaa Kamel Bahgaat ◽

Nariman Abdel Salam ◽

Monika Mady Roshdy ◽

Sandy Abd Elrasheed Sakr

Keyword(s):

Mobile Networks ◽

Renewable Energy Sources ◽

Mobile Station ◽

Electrical Energy ◽

Environmental Problems ◽

Base Stations ◽

Energy Sources ◽

Solar Panels ◽

Lte Networks ◽

Photovoltaic Panel

Rapid growth in mobile networks and the increase of the number of cellular base stations requires more energy sources, but the traditional sources of energy cause pollution and environmental problems. Therefore, modern facilities tend to use renewable energy sources instead of traditional sources. One renewable source is the photovoltaic panel, which made from semiconductor materials which absorb sunlight to generate electricity. This article discusses the importance of using solar panels to produce energy for mobile stations and also a solution to some environmental problems such as pollution. This article provides a design for a solar-power plant to feed the mobile station. Also, in this article is a prediction of all loads, the power consumed, the number of solar panels used, and solar batteries can be used to store electrical energy. Finally, an estimation of the costs of all components will be presented. Good discussion and conclusion will be presented about the results obtained. The results obtained are promising. In addition, a future plan is described to complete this important study.

Download Full-text

In-grid solar-to-electrical energy conversion system modeling and testing

Thermal Science ◽

10.2298/tsci120224069c ◽

2012 ◽

Vol 16 (suppl. 1) ◽

pp. 159-171 ◽

Cited By ~ 3

Author(s):

Zoltan Corba ◽

Vladimir Katic ◽

Boris Dumnic ◽

Dragan Milicevic

Keyword(s):

Power Plant ◽

Simulation Model ◽

Energy Conversion ◽

System Modeling ◽

Electrical Energy ◽

Photovoltaic Cell ◽

Modeling Methods ◽

Photovoltaic Power ◽

Conversion System ◽

Energy Conversion System

In this study, a simulation model of in-grid solar-to-electrical energy conversion system is presented. In this case, the in-grid solar-to-electrical energy conversion system is small photovoltaic power plant, which was constructed by the Center for Renewable Energy and Power Quality from Faculty of Technical Sciences (FTS). Equivalent circuit diagram of photovoltaic cell is described which was used to develop the simulation model of modules. Possible types and topologies of inverters are also described. The photovoltaic power plant is described briefly, because it is necessary to understand the simulation model. The result of simulation is an electricity annual production by the power plant. These results were compared with the real values, while its get a good overlap. The paper also presents the modern modeling methods developed at Faculty of Technical Sciences in the Laboratory for RES systems.

Download Full-text

Power Cycles of Generation III and III+ Nuclear Power Plants

Volume 5: Innovative Nuclear Power Plant Design and New Technology Application; Student Paper Competition ◽

10.1115/icone22-30151 ◽

2014 ◽

Cited By ~ 1

Author(s):

Alexey Dragunov ◽

Eugene Saltanov ◽

Igor Pioro ◽

Pavel Kirillov ◽

Romney Duffey

Keyword(s):

Renewable Energy ◽

Natural Gas ◽

Thermal Efficiency ◽

Nuclear Power ◽

Power Plants ◽

Renewable Energy Sources ◽

Thermal Power ◽

Electrical Energy ◽

Energy Sources ◽

Thermal Power Plants

It is well known that the electrical-power generation is the key factor for advances in any other industries, agriculture and level of living. In general, electrical energy can be generated by: 1) non-renewable-energy sources such as coal, natural gas, oil, and nuclear; and 2) renewable-energy sources such as hydro, wind, solar, biomass, geothermal and marine. However, the main sources for electrical-energy generation are: 1) thermal - primary coal and secondary natural gas; 2) “large” hydro and 3) nuclear. The rest of the energy sources might have visible impact just in some countries. Modern advanced thermal power plants have reached very high thermal efficiencies (55–62%). In spite of that they are still the largest emitters of carbon dioxide into atmosphere. Due to that, reliable non-fossil-fuel energy generation, such as nuclear power, becomes more and more attractive. However, current Nuclear Power Plants (NPPs) are way behind by thermal efficiency (30–42%) compared to that of advanced thermal power plants. Therefore, it is important to consider various ways to enhance thermal efficiency of NPPs. The paper presents comparison of thermodynamic cycles and layouts of modern NPPs and discusses ways to improve their thermal efficiencies.

Download Full-text

Studi Analisa Potensi Sumber Air sebagai Pembangkit Listrik Tenaga Mikrohidro (PLTMH) di Karungan Kelurahan Mamburungan Timur Kota Tarakan

Jurnal Inovasi Sains dan Teknologi (INSTEK) ◽

10.51454/instek.v4i2.129 ◽

2021 ◽

Vol 4 (2) ◽

pp. 22-26

Author(s):

Hadi Santoso ◽

Eris Santoso ◽

Ruslim Ruslim

Keyword(s):

Energy Source ◽

Alternative Energy ◽

Renewable Energy Sources ◽

Water Discharge ◽

Electrical Energy ◽

Water Source ◽

Energy Sources ◽

Hydro Power ◽

The People ◽

City Water

The supply of electrical energy in Tarakan City, North Kalimantan, still relies on diesel power which uses a limited number of petroleum energy sources. There is a need for research related to renewable energy sources that have the potential to become alternative energy for the people of Tarakan City. Water is an energy source that has great potential to generate electricity. The energy source that should be taken into account is micro-hydro which can be used as a Micro-hydro Power Plant (PLTMH). A survey of micro-hydro sources in Tarakan City, precisely in the Karungan area, East Mamburungan Village, has been carried out with the direct measurement method of water discharge and the relationship with the power generated. The result shows the water source has a discharge 0.00034 m3/ s, the water velocity of 0.035 m/s and generates power only up to 1.1 watts. Based on the power obtained, the water source in this place cannot be used as a source of micro-hydro energy, but has the potential as a source of pico-hydro energy.

Download Full-text

DEVELOPMENT OF CONSTRUCTION OF THREE-INPUT GENERATING INSTALLATIONS ON BASED OF RENEWABLE ENERGY SOURCES

Известия вузов. Пищевая технология ◽

10.26297/0579-3009.2018.4.18 ◽

2018 ◽

Author(s):

Я.М. КАШИН ◽

Л.Е. КОПЕЛЕВИЧ ◽

А.В. САМОРОДОВ ◽

Ч. ПЭН

Keyword(s):

Renewable Energy ◽

Kinetic Energy ◽

Total Energy ◽

Thermal Energy ◽

Output Voltage ◽

Renewable Energy Sources ◽

Electrical Energy ◽

Energy Sources ◽

Voltage Regulator ◽

The Sun

Описаны конструктивные особенности трехвходовой аксиальной генераторной установки (ТАГУ), преобразующей кинетическую энергию ветра и световую энергию солнца и суммирующей механическую, световую и тепловую энергию с одновременным преобразованием полученной суммарной энергии в электрическую. Показаны преимущества ТАГУ перед двухвходовыми генераторными установками. Дополнительное включение стабилизатора напряжения в схему ТАГУ позволило расширить область применения стабилизированной трехвходовой аксиальной генераторной установки за счет стабилизации ее выходного напряжения. The design features of the three-input axial generating installation (TAGI), which converts the kinetic energy of wind and light energy of the sun and sums the mechanical, light and thermal energy with the simultaneous conversion of the total energy into electrical energy, are described. The benefits of TAGI in front of the two-input generating installation shown. The additional introduction of a voltage regulator into the TAGI scheme allowed to expand the scope of the stabilized three-input axial generating installation by stabilizing its output voltage.

Download Full-text