scholarly journals Improving the Efficiency of Solar Photovoltaic Cell by Decreasing Surface Temperature

2019 ◽  
Vol 9 (2) ◽  
pp. 3235-3239
Keyword(s):  
Renewable Energy ◽  
Solar Energy ◽  
Energy Conversion ◽  
Electrical Energy ◽  
Photovoltaic Cell ◽  
Biomass Energy ◽  
Energy Resources ◽  
Air Cooling ◽  
Solar Photovoltaic ◽  
Renewable Energy Resources

Supply of energy is able to meet the increasing demand of today’s people, which is major causes faced by world. The shortage of power can be reduced by using renewable energy resources. There are many renewable energy resources like wind, tidal and biomass energy, solar energy. The mostsignificant form of renewable source is solar energy. It has undergone a research and development in the recent years and still it is developing. Solar photovoltaic cell is device used in solar energy conversion. It converts forthrightly electrical energy from the sunlight. The efficiency of PV cell is disturbed when rise in working temperature. Temperature on the panel is inversely proportional to the power generation. The main problem met by solar cell is temperature rise. Due to this temperature the energy conversion is low. By decreasing the temperature on the surface of PV panel to enhance the electric efficiency. So, in present-day different cooling methods have been projected and verified experimentally. Several techniques have been tried, mostly based on active water and air cooling, as these are simple techniques. The main objective of this system is to increase the solar panel efficiency using water cooling method of the panel gets cooled by exchange temperature.

scholarly journals TECHNO-ECONOMIC ANALYSIS OF AN OFF-GRID HYBRID ENERGY SYSTEM WITH HOMER PRO

2021 ◽  
Vol 5 (3) ◽  
pp. 56-61
Author(s):  
Ahmet Erhan AKAN
Keyword(s):  
Renewable Energy ◽  
Solar Energy ◽  
Economic Analysis ◽  
Energy Conversion ◽  
Renewable Energy Sources ◽  
Lithium Ion ◽  
Energy Sources ◽  
Renewable Energy Resources ◽  
Energy Potential ◽  
Economic Point

The decrease in fossil-based energy sources and increasing environmental problems increase the tendency to renewable energy sources day by day. The potential of renewable energy sources differs according to the region where the energy will be produced. For this reason, it is crucial to conduct a good feasibility study that deals with the selected systems from a technical and economic point of view before making an investment decision on energy conversion systems based on renewable energy sources. In this study, the most suitable equipment and capacities were investigated by examining the techno-economic analysis of a hybrid system created with wind-solar renewable energies for a detached house, which is considered off-grid, in a rural area of Tekirdağ province (40o58.7ı N, 27o30.7ı E). Investigations were carried out using the HOMER Pro (Hybrid Optimization Model for Electric Renewable) program. The wind and solar energy potential of Tekirdağ province were obtained from the NASA renewable energy resources database added to the HOMER Pro program. The daily electricity requirement of the sample house was chosen as 11.27 kWh, and the current peak electrical load was chosen as 2.39 kW. A wind turbine is connected to the AC busbars, solar collectors and battery group connected to the DC busbars, and a converter that converts energy between AC and DC busbars in the energy conversion system. In order to determine the optimum capacities of the system elements, 27486 different simulations were performed by HOMER Pro. The selection of the most suitable system among these was determined according to the lowest net present cost (NPC) value. In addition, the energy production capacities that will occur in the case of different wind speeds were also investigated. Accordingly, the system to be installed with a solar panel with a capacity of 6.25 kW, PV-MPPT with a capacity of 1 kW, 2 wind turbines with a capacity of 1 kW, 8 Lithium-ion batteries with a capacity of 6V-167 Ah, and a converter with a capacity of 2.5 kW has been determined will generate electrical energy of 5433 kWh per year. In addition, it has been determined that 61.8% of this produced energy will be obtained from solar energy and 38.2% from wind energy, and the simple payback period of the investment will be 14 years. It is thought that this study will provide valuable information to researchers and investors.

scholarly journals Renewable energy resources in the EU (Policy scenario)

2013 ◽  
pp. 143-146
Author(s):  
Orsolya Nagy
Keyword(s):  
Climate Change ◽  
European Union ◽  
Renewable Energy ◽  
Energy Use ◽  
Biomass Energy ◽  
Energy Resources ◽  
The European Union ◽  
Renewable Energy Resources ◽  
The Right ◽  
The Eu

The use of renewable energies has a long past, even though its share of the total energy use is rather low in European terms. However, the tendencies are definitely favourable which is further strengthened by the dedication of the European Union to sustainable development and combat against climate change. The European Union is on the right track in achieving its goal which is to be able to cover 20% its energy need from renewable energy resources by 2020. The increased use of wind, solar, water, tidal, geothermal and biomass energy will reduce the energy import dependence of the European Union and it will stimulate innovation.

scholarly journals Green Economy and Renewable Energy Focusing on the Biomass Energy Source

2016 ◽  
Vol 9 (3) ◽  
pp. 56 ◽  
Author(s):  
Mohammed Ebrahim Hussien ◽  
Chamhuri Siwar ◽  
Rashidah Zainal Alam ◽  
Abdul Hamid Jafar ◽  
Norasikin Ahmad Ludin
Keyword(s):  
Energy Source ◽  
Sustainable Development ◽  
Renewable Energy ◽  
Environmental Sustainability ◽  
Energy Resource ◽  
Biomass Energy ◽  
Energy Resources ◽  
Green Economy ◽  
Renewable Energy Resources ◽  
Energy And Environment

<p>Since conventional energy resources are major source of CO<sub>2</sub> emission, over reliance on fossil fuels has raised questions on environmental sustainability. On way to address these multi-faceted issues of conventional energy sources, the sustainability of energy and environment is through the green economy approach. As such, this paper aims to discuss the concept of green economy in relation with renewable energy. The interdependence of green economy and environmental quality as well as the compatibility of green economy approach with the notion of sustainable development are demonstrated in the paper. Green economy approach fulfils the methodological gaps that exist in the growth models. It is believed that the best economic tool to attain sustainable development goals is by integrating social, economic and environmental elements. Furthermore, energy is believed to be a significant player in determining the greenness of the economy and sustainability as it has economic and environmental value. In addition, this study illustrates the significance of biomass energy resource and CO<sub>2</sub> emissions from fossil fuel combustion. The illustration framework justifies that biomass is the determinant renewable energy source to be a proxy for renewable energy resources. Similarly, it justifies that CO<sub>2</sub> emission of energy sector is considerably significant to represent the CO<sub>2</sub> emissions of the atmosphere.</p>

scholarly journals Solar Driven Energy Conversion Applications Based on 3C-SiC

2016 ◽  
Vol 858 ◽  
pp. 1028-1031 ◽  
Author(s):  
Jian Wu Sun ◽  
Valdas Jokubavicius ◽  
Lu Gao ◽  
Ian Booker ◽  
Mattias Jansson ◽  
...  
Keyword(s):  
Solar Energy ◽  
Energy Conversion ◽  
Water Splitting ◽  
Clean Energy ◽  
Energy Resources ◽  
Renewable Energy Resources ◽  
Intermediate Band ◽  
Boron Doped ◽  
Clean Energy Source ◽  
Photovoltaic Material

There is a strong and growing worldwide research on exploring renewable energy resources. Solar energy is the most abundant, inexhaustible and clean energy source, but there are profound material challenges to capture, convert and store solar energy. In this work, we explore 3C-SiC as an attractive material towards solar-driven energy conversion applications: (i) Boron doped 3C-SiC as candidate for an intermediate band photovoltaic material, and (ii) 3C-SiC as a photoelectrode for solar-driven water splitting. Absorption spectrum of boron doped 3C-SiC shows a deep energy level at ~0.7 eV above the valence band edge. This indicates that boron doped 3C-SiC may be a good candidate as an intermediate band photovoltaic material, and that bulk like 3C-SiC can have sufficient quality to be a promising electrode for photoelectrochemical water splitting.

scholarly journals Photovoltaic Solar Energy: The Brazilian Reality

2019 ◽  
Vol 2 (3) ◽  
Keyword(s):  
Solar Energy ◽  
Power Plants ◽  
Energy Resources ◽  
Solar Photovoltaic ◽  
Hydroelectric Power ◽  
Renewable Energy Resources ◽  
Photovoltaic Generation ◽  
Thermoelectric Power Plants ◽  
Hydroelectric Plants ◽  
Photovoltaic Solar Energy

The searching for diversification of energy resources in Brazil has become extremely necessary due to two main factors. The first one is the current hydric situation in which the country is passing through; with the scarcity of rain, the generation situation through hydroelectric power plants is being compromised. Since the significant reduction in rainfall, power generation by hydroelectric plants has not been sufficient to supply the demand. Consequently, the need to use thermoelectric power plants has increased the energy price. Secondly, secondly, the explorations of renewable energy resources bring flexibility and sustainability. In this scenario, photovoltaic solar energy presents itself as a technology in constant advance in Brazil and around the world. Through a bibliographical review, this article aims to present the principle of the use of this energy, considering the equipment and materials applied to the system, as well as the efficiency they can achieve. In addition, there is a broader view of the use of sunlight to produce electricity through photovoltaic panels and the applications of this technology in specific situations, such as installation on streetlights. The use of photovoltaic energy is a reality that states increasingly in several countries. In Brazil the manufacturing of photovoltaic systems need to reach an industrial scale to reduce costs, technical conditions and the uncertainty of the extent that this market will reach in the coming years also bring difficulties to final consolidation of solar photovoltaic generation in Brazil. There are several uses for a system that generates electricity

Design of Two-Axis Automatic Sun Tracking System Assisted with Manual Control through LabVIEW

2015 ◽  
Vol 813-814 ◽  
pp. 992-996
Author(s):  
P. Chandra Dheeraj ◽  
B. Avinash ◽  
G. Sai Pavan Kumar ◽  
P.S. Sivasakthivel ◽  
M. Venkatesan
Keyword(s):  
Solar Energy ◽  
Tracking System ◽  
Weather Conditions ◽  
Electrical Energy ◽  
Energy Resources ◽  
Manual Control ◽  
Solar Photovoltaic ◽  
Bad Weather ◽  
The Cost ◽  
User Friendly

With the fast depletion of the conventional energy resources and the amount of pollution it is creating, the entire world is looking for an alternative non-conventional and a renewable energy to lessen the dependency on the conventional energy resources. In this scenario, utilizing solar energy which is abundant in nature is gaining high attention. One way of utilizing solar energy is by using solar photovoltaic cells which convert light energy into electrical energy, but they are too costly and less efficient. Many techniques are being developed to reduce the cost and improve the efficiency in harnessing solar energy. Sun tracking technique is one of the methods to increase the efficiency of solar cells. The present work is focused on providing a microcontroller based automatic two-axis sun tracker using Photodiodes as sensors to track sun. The system is assisted with a manual control through LabVIEW (Graphical User friendly Interface) to aid during bad weather conditions.

Environmental and economic evaluation of solar panel wastes recycling

2019 ◽  
Vol 37 (4) ◽  
pp. 412-418 ◽  
Author(s):  
Çağdaş Gönen ◽  
Elif Kaplanoğlu
Keyword(s):  
Renewable Energy ◽  
Solar Energy ◽  
Energy Demand ◽  
Economic Value ◽  
Environmental Benefits ◽  
Energy Resources ◽  
Photovoltaic Module ◽  
Renewable Energy Resources ◽  
Photovoltaic Modules ◽  
A Chain

Owing to rising population and increasing energy demand, renewable energy resources become the most convenient and promising solution. Hence, solar power plant investments and photovoltaic module numbers have risen sharply. Turkey is one of the tight followers of the energy trends, thanks to its rising energy demand and economic power. However, the consequences of the massive plant wastes importance in term of economically and environmentally have not been understood yet. Almost 70% of the modules are formed by glass and the rest accumulates economically valuable metal materials, which are silver, aluminium and copper. These three main materials are substantially important in the overall waste. Not only the economic value, but also the environmental impacts of the mining effluents to excavate these metals are causing emission problems. As a chain reaction, the higher energy demand triggers a search for new and renewable energy resources. This is why popularity of solar energy has increased. Solar energy can be absorbed and transformed through photovoltaic modules, which contain glass and three main metals. In order to respond for the production of modules, metals are fundamental. This need triggers the need of metals mining excavations and emissions. In this respect, in the near future, thanks to the rising investments on photovoltaic modules and the CO2 emissions coming from mining, the wastes of photovoltaic modules and the need of recycling will become more important. That is why, in this study it is aimed to present environmental benefits and economic recoveries of recycling photovoltaic module in Turkey.

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