scholarly journals Review on Thermal Analysis of Solar Parabolic Collector by using CFD

2021 ◽  
Vol 7 (2) ◽  
pp. 9-12
Author(s):  
Vicky Kumar ◽  
Dr. Rajeev Arya ◽  
Shravan Vishwakarma
Keyword(s):  
Thermal Analysis ◽  
Renewable Energy ◽  
Solar Energy ◽  
Thermal Energy ◽  
Renewable Energies ◽  
Parabolic Collector

Solar energy is one of the most freely available forms of clean renewable energy. Many technologies have been developed in India to obtain energy from various renewable energies, but obtaining maximum thermal energy from solar energy is the most promising challenge. This article introduces solar energy and the solar energy collector. The introduction of the parabolic by the collector is also described.

scholarly journals Review of Energy Harvesting for Buildings Based on Solar Energy and Thermal Materials

CivilEng ◽  
2021 ◽  
Vol 2 (4) ◽  
pp. 852-873
Author(s):  
Luciana Sucupira ◽  
João Castro-Gomes
Keyword(s):  
Renewable Energy ◽  
Energy Harvesting ◽  
Solar Energy ◽  
Thermal Energy ◽  
Fossil Fuels ◽  
Energy Capture ◽  
Advantages And Disadvantages ◽  
High Incidence ◽  
Recent Developments ◽  
Energy Harvesting Devices

Reducing the use of fossil fuels and the generation of renewable energy have become extremely important in today. A climatic emergency is being experienced and society is suffering due to a high incidence of pollutants. For these reasons, energy harvesting emerges as an essential source of renewable energy, and it benefits from the advancement in the scope of solar and thermal energy which are widely abundant and usually wasted. It is an option to obtain energy without damaging the environment. Recently, energy harvesting devices, which produce electricity, have been attracting more and more attention due to the availability of new sources of energy, such as solar, thermal, wind and mechanical. This article looks at recent developments in capturing energy from the sun. This literature review was performed on research platforms and analyzes studies on solar and thermal energy capture carried out in the last four years. The methods of capturing solar energy were divided according to how they were applied in civil engineering works. The types of experiments carried out were the most diverse, and several options for capturing solar energy were obtained. The advantages and disadvantages of each method were demonstrated, as well as the need for further studies. The results showed that the materials added to the components obtained have a lot of advantages and could be used in different energy capture types, such as photovoltaic, thermoelectric generators, pyroelectricity and thermometrical. This demonstrates that the capture of solar energy is quite viable, and greater importance should be given to it, as the number of research is still small when compared to other renewable energies.

A Comprehensive Review on Solar Parabolic Trough Collector

2018 ◽  
Vol 4 (10) ◽  
pp. 6
Author(s):  
Kripa Shankar Pathak, ◽  
Ravindra Mohan
Keyword(s):  
Renewable Energy ◽  
Solar Energy ◽  
Visible Light ◽  
Thermal Performance ◽  
Thermal Energy ◽  
Parabolic Trough ◽  
Comprehensive Review ◽  
Parabolic Trough Collector ◽  
Maximum Extraction ◽  
Intense Research

Solar energy is one among the freely available clean forms of renewable energy. Many technologies have been developed in India for extracting energy from assorted renewable energies, but the maximum extraction of thermal energy from solar energy is the most promising challenge. This paper focuses on the performance and efficiency of solar parabolic trough collector. In this paper, the design stages of a solar parabolic trough collector are presented. The sunlight collected is split by a cold mirror into visible light and inferred rays. The visible light and IR are used for day lighting and heating generation respectively. The receiver absorbs the incoming radiations and transforms them into thermal energy. Improving the performance of solar collectors has been recently a subject of intense research because of its advantages such as a decrease in the size and cost of systems and an increase in the thermal performance.

Experimental Analysis of Storage of Solar Energy in Phase Change Materials Encapsulated in Copper Cylinders

2015 ◽  
Vol 766-767 ◽  
pp. 445-450
Author(s):  
S. Ramachandran
Keyword(s):  
Heat Transfer ◽  
Renewable Energy ◽  
Solar Energy ◽  
Phase Change ◽  
Thermal Energy ◽  
Heat Transfer Fluid ◽  
Crystalline Solid ◽  
Renewable Energy Resources ◽  
Solar Thermal Energy ◽  
Charging Mode

The Demand and increase in the cost of fossil fuels have made the entire world to turn towards the renewable energy resources. There are various renewable energy out of which solar energy is the efficient energy and available in abundant. The main disadvantage of solar energy is that it is not continuous and it is available only in the day time and so the storage of solar thermal energy is considered as an important one. In this study, thermal energy is transmitted through the therminol-55 oil which is the Heat Transfer Fluid (HTF). D-Mannitol-a white, crystalline solid with the chemical formula C6H8(OH)6 is taken as the Phase Change Material (PCM) and stored inside the copper cylindrical encapsulations. The D-mannitol PCM was stored in the copper cylinder encapsulations with and without fins. These encapsulations were immersed in a cylindrical mild steel tank containing HTF. The therminol-55 oil was allowed to flow through the solar parabolic trough collector to transfer heat. Along with this, an additional heater was provided for heating HTF up to the temperature 300oC. This hot oil was allowed to flow in to the PCM tank where the PCM copper cylinders were immersed. The experiments were conducted in two stages one with finned encapsulations and another without finned encapsulations. Here the experiments were done in two modes one is charging mode and another one is discharging mode. In charging mode the temperature of the HTF was raised to 300oC and was allowed to cool during its discharging mode to 120 oC. The time taken for the charging and discharging of heat was measured to analyse the heat transfer study of thermal storage system.

scholarly journals Pengaruh jumlah haluan pipa paralel pada kolektor surya plat datar absorber batu kerikil terhadap laju perpindahan panas

2016 ◽  
Vol 6 (2) ◽  
Author(s):  
M. Wirawan ◽  
R. Kurniawan ◽  
Mirmanto Mirmanto
Keyword(s):  
Renewable Energy ◽  
Solar Radiation ◽  
Solar Energy ◽  
Thermal Energy ◽  
Solar Collector ◽  
Alternative Energy ◽  
Mesh Size ◽  
The Other ◽  
Energy Crisis ◽  
Better Than

Recently the use of energy increases. It leads to the energy crisis. Therefore, it is important to promote alternative energy (renewable energy). One of renewable energies, which is potential in Indonesia, is solar enrgy. Solar energy can be harvested using a solar collector. This device can collect or absorb solar radiation and convert it to thermal energy. In this study, two identical collectors are used. One collector consists of 7 pipes and the other comprises 9 pipes. The overall dimension of the collector is 100 cm x 80 cm x 10 cm and the absorber of the collector is made of gravels with a mesh size of 9.5 -12.5 mm. The collectors are placed with a slope of 15o facing to North. The volumetric rates of water used in the experiments are 300 cc / min, 350 cc / min and 400 cc / min. The results show that the collector with 9 pipes is better than that with 7 pipes.

scholarly journals An Economic Examination of Solar Energy with Storage based Supply Options: Solar PV-Battery and CSP with Thermal-Storage

2019 ◽  
Vol 8 (6S3) ◽  
pp. 740-748
Keyword(s):  
Power Generation ◽  
Renewable Energy ◽  
Energy Storage ◽  
Solar Energy ◽  
Thermal Energy ◽  
Power Supply ◽  
Solar Power ◽  
Renewable Energy Sources ◽  
Solar Pv ◽  
Levelized Cost Of Electricity

Renewable energy is being promoted amidst rising environmental concerns associated with fossil-fuel usage for power generation. The stock of such fuels is also limited and is fast depleting. Renewable energy sources such as solar photovoltaic (PV) systems present a clean alternative that has become cost-competitive with conventional thermal power generation systems. However, to counter the intermittent nature of solar power and ensure firm power supply, energy storage is essential. This paper presents a comparative analysis of power supply options based on two solar energy technologies - PV and concentrated solar power (CSP). Energy storage in the form of battery and thermal energy respectively has been included and different combinations of supply options, along with utility grid, have been analyzed in terms of the levelized cost of electricity (LCOE). The LCOE values for supplying a particular substation load in India have been compared and it was found that CSP with thermal energy storage emerged to be the economically viable option for supplying the load.

scholarly journals Evaluation of Implementation of Biomass and Solar Resources by Energy Systems in the Coal-Mining Areas of Spain

Energies ◽  
2021 ◽  
Vol 15 (1) ◽  
pp. 232
Author(s):  
Beatriz M. Paredes-Sánchez ◽  
José P. Paredes-Sánchez ◽  
Paulino José García-Nieto
Keyword(s):  
Renewable Energy ◽  
Solar Energy ◽  
Coal Mining ◽  
Thermal Energy ◽  
Energy Demand ◽  
Renewable Energy Sources ◽  
Energy Systems ◽  
The European Union ◽  
Modular Systems ◽  
Mining Areas

Energy demand is steadily growing as society becomes more industrialised. Renewable energy sources (RES) have long been used for various applications by thermal energy systems in the European Union (EU). Biomass and solar energy represent important RES in the development of energy transition in some regions such as coal-mining areas of Europe. Bioenergy is a key renewable energy storage mechanism for solar energy which, when combined, can tackle many of the barriers to the use of solar energy. Against this background, this study evaluates the potential implementation of both biomass and solar energy for energy production in coal-mining areas in Spain as a direct alternative to coal. The shown methodology relies on a comprehensive analysis of existing resources and their conversion to thermal energy from a multi-parametric point of view. The obtained results show that the solar–biomass combination can be used for thermal energy systems as a challenging option. The theoretical total hybrid-modular systems if implemented in the study area are equivalent to 1165 MWth and supply thermal energy for 170,000 single-family houses.

Model Statistika Prediksi Energi Surya Dengan Menggunakan Autoregresif Integrated Moving Average (ARIMA)

Jurnal MIPA ◽  
2019 ◽  
Vol 8 (3) ◽  
pp. 181
Author(s):  
Imriani Moroki ◽  
Alfrets Septy Wauran
Keyword(s):  
Renewable Energy ◽  
Solar Energy ◽  
Moving Average ◽  
Arima Model ◽  
Solar Irradiation ◽  
Energy Sources ◽  
Energy Potential ◽  
Good Design ◽  
Potential Sources ◽  
The Common

Energi terbarukan adalah salah satu masalah energi paling terkenal saat ini. Ada beberapa sumber potensial energi terbarukan. Salah satu energi terbarukan yang umum dan sederhana adalah energi matahari. Masalah besar ketersediaan energi saat ini adalah terbatasnya sumber energi konvensional seperti bahan bakar. Ini semua sumber energi memiliki banyak masalah karena memiliki jumlah energi yang terbatas. Penting untuk membuat model dan analisis berdasarkan ketersediaan sumber energi. Energi matahari adalah energi terbarukan yang paling disukai di negara-negara khatulistiwa saat ini. Tergantung pada produksi energi surya di daerah tertentu untuk memiliki desain dan analisis energi matahari yang baik. Untuk memiliki analisis yang baik tentang itu, dalam makalah ini kami membuat model prediksi energi surya berdasarkan data iradiasi matahari. Kami membuat model energi surya dan angin dengan menggunakan Metode Autoregresif Integrated Moving Average (ARIMA). Model ini diimplementasikan oleh R Studio yang kuat dari statistik. Sebagai hasil akhir, kami mendapatkan model statistik solar yang dibandingkan dengan data aktualRenewable energy is one of the most fomous issues of energy today. There are some renewable energy potential sources. One of the common n simple renewable energy is solar energy. The big problem of the availability of energy today is the limeted sources of conventional enery like fuel. This all energy sources have a lot of problem because it has a limited number of energy. It is important to make a model and analysis based on the availability of the energy sources. Solar energy is the most prefered renewable energy in equator countries today. It depends on the production of solar energy in certain area to have a good design and analysis of  the solar energy. To have a good analysis of it, in this paper we make a prediction model of solar energy based on the data of solar irradiation. We make the solar and wind enery model by using Autoregresif Integrated Moving Average (ARIMA) Method. This model is implemented by R Studio that is a powerfull of statistical. As the final result, we got the statistical model of solar comparing with the actual data

scholarly journals Ocean Thermal Energy Conversion—Flexible Enabling Technology for Variable Renewable Energy Integration in the Caribbean

Energies ◽  
2021 ◽  
Vol 14 (8) ◽  
pp. 2192
Author(s):  
Robert J. Brecha ◽  
Katherine Schoenenberger ◽  
Masaō Ashtine ◽  
Randy Koon Koon
Keyword(s):  
Climate Change ◽  
Renewable Energy ◽  
Energy Conversion ◽  
Thermal Energy ◽  
Small Island ◽  
Gis Mapping ◽  
Ocean Thermal Energy Conversion ◽  
Thermal Energy Conversion ◽  
Hourly Data ◽  
Ocean Thermal Energy

Many Caribbean island nations have historically been heavily dependent on imported fossil fuels for both power and transportation, while at the same time being at an enhanced risk from the impacts of climate change, although their emissions represent a very tiny fraction of the global total responsible for climate change. Small island developing states (SIDSs) are among the leaders in advocating for the ambitious 1.5 °C Paris Agreement target and the transition to 100% sustainable, renewable energy systems. In this work, three central results are presented. First, through GIS mapping of all Caribbean islands, the potential for near-coastal deep-water as a resource for ocean thermal energy conversion (OTEC) is shown, and these results are coupled with an estimate of the countries for which OTEC would be most advantageous due to a lack of other dispatchable renewable power options. Secondly, hourly data have been utilized to explicitly show the trade-offs between battery storage needs and dispatchable renewable sources such as OTEC in 100% renewable electricity systems, both in technological and economic terms. Finally, the utility of near-shore, open-cycle OTEC with accompanying desalination is shown to enable a higher penetration of renewable energy and lead to lower system levelized costs than those of a conventional fossil fuel system.

scholarly journals Introduction to (photo)electrocatalysis for renewable energy

2021 ◽  
Vol 57 (13) ◽  
pp. 1540-1542
Author(s):  
Abhishek Dey ◽  
Frances A. Houle ◽  
Carolyn E. Lubner ◽  
Marta Sevilla ◽  
Wendy J. Shaw
Keyword(s):  
Renewable Energy ◽  
Electrode Materials ◽  
Renewable Energies

(Photo)electrocatalysis holds the promise to enable the broad implementation of renewable energies. The articles highlighted in this issue emphasize advances in types and activity of catalysts and electrode materials for a variety of reactions and technologies.

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