scholarly journals Solar Power Analysis Under Varying Environmental Condition Using Solar Emulator

2021 ◽  
Vol 10 (2) ◽  
pp. 101-113
Author(s):  
Anjali Garg
Keyword(s):  
Renewable Resources ◽  
Solar Power ◽  
Energy Requirement ◽  
Research Work ◽  
Analysis Data ◽  
Current Situation ◽  
Point Of View ◽  
Solar Panels ◽  
Partial Shading ◽  
Factors Affecting

The current situation of fast depleting non-renewable resources and excessive damage done to mother earth due to severe mechanization and industrialization has resulted in alarming rate of pollutions. The one-word answer for it is that we should start harnessing renewable resources of energy. Tapping sun’s energy is a wonderful and apt answer to the current situation of energy requirement. World over this technology is worked upon to make use of sun’s energy easy to be converted into usable energy form i.e. electricity. The research work being carried on in varied fields however to mention one such aspect of solar panels is irradiance -receiving and capturing powers. Along with the irradiance, the area of a panel which is exposed to sun, the daytime and location are some of the factors affecting the amount of power generated using solar power as generating source. From research point of view, to analyze the effect of variation of these parameters, it is difficult to get the analysis data using solar panels and hence now a day’s emulator is preferred and used for research purposes. This paper focuses on the basics of emulator, its structure, functioning, effect of various parameter variations on the analysis of the generated power and other related benefits using emulator. The paper also presents the effect of partial shading on the maximum power generated and the efficiency hence obtained. The performance analysis is done on an Experimental set up fabricated in Research lab.

The Effect of Temperature Change on the Output Characteristics of a Solar Power Plant under Partial Shading Conditions

2020 ◽  
Vol 21 (1) ◽  
Author(s):  
Anton Kievets ◽  
Julius Bay ◽  
Aleksey Suvorov ◽  
Alisher Askarov ◽  
Vladimir Rudnik
Keyword(s):  
Temperature Change ◽  
Power Plants ◽  
Solar Power ◽  
Renewable Energy Sources ◽  
Real Data ◽  
Luminous Flux ◽  
Point Of View ◽  
Effect Of Temperature ◽  
Partial Shading ◽  
Output Characteristics

AbstractCurrently, the world is widely introducing renewable energy sources including solar power plants (SPP). In order to predict their work, it is necessary to adequately simulate the processes occurring in solar panels, not only in standard conditions, but also in conditions of partial shading. At present, the effect of partial shadowing is considered from the point of view of changes in the luminous flux, however, for a more adequate and comprehensive simulation, it is also necessary to take into account the temperature change in the shaded areas of SPP, especially considering the area of powerful SPP, the temperature of individual sections of which can radically differ, which is undoubtedly will lead to a change in the output characteristics of the SPP. Failure to take this factor into account, when modeling high-power SPP leads to results that do not correspond to real data.

scholarly journals The Value of the Cards in Water Basins with the Installation of Solar Power Plants in Yangiyul District of Tashkent Province of Uzbekistan

2021 ◽  
Vol 227 ◽  
pp. 05004
Author(s):  
Ilhomjon Musaev ◽  
Abdujalol Bokiev ◽  
Mukhtaram Botirova
Keyword(s):  
Low Power ◽  
Rural Areas ◽  
Power Plants ◽  
Solar Power ◽  
Natural Capital ◽  
Point Of View ◽  
Land Resources ◽  
Solar Panels ◽  
Land Relations ◽  
Solar Power Plants

The article considers the possibility of using the surface of various reservoirs characteristic of regions when allocating land for lowpower solar power plants in Uzbekistan. When implementing low-power solar power plants in Uzbekistan, a certain amount of land resources is required (for installing solar panels). From the point of view of respect for natural capital (saving land resources), the method of installing solar panels directly above the surface of water basins based on the corresponding maps of water basins is technically and economically effective. The methodological basis of the research is the results of researchers work on the problems of land relations and land management. In the research, a systematic approach to the analysis of land use has been chosen, in which a variety of tools were used to determine the essence of the analyzed phenomena, processes and patterns. In recent years, industry has been rapidly developing in rural areas of the Yangiyul district of Tashkent Province of Uzbekistan. In this regard, the problems of effective use of land resources, especially targeted use of irrigated land, has become urgent. This means that in the future there will be problems when allocating land for the installation of low-power solar power plants.

scholarly journals Factors affecting the frequency of consumption of domestic and foreign fast food brands

2020 ◽  
Vol 47 (2) ◽  
pp. 87-97
Author(s):  
Dragana Tomašević ◽  
Branislav Radnović ◽  
Dragana Gašević
Keyword(s):  
Fast Food ◽  
Research Result ◽  
Research Work ◽  
Working Hours ◽  
Point Of View ◽  
Easy Access ◽  
Time Saving ◽  
Factors Affecting ◽  
Fast Food Restaurants ◽  
Primary Hypothesis

The rapid pace of life in recent years has led to an increase in the consumption of fast-food in all age and social groups, and in this regard to an increase in the number of newly opened fast-food restaurants. Previously conducted research work in this field has shown that various factors influence an individual's decision (not) to consume fast-food, and the following five factors have stood out: convenience, brand reputation, quality, consistency and cost. Therefore, the aim of this research was identifying the key factors that influence the frequency of consumption of domestic and foreign fast-food brands. The sample included 146 subjects of different gender, age, qualifications, and employment status. The preliminary online research was carried out using the anonymous three-section questionnaire. Based on the data obtained through ordinal logical regression, the primary hypothesis was confirmed, as it was found that there was a statistically significant factor in the frequency of fast-food consumption, that factor being a convenience. It has been confirmed that convenience factor implies utility and time saving, the possibility of easy access to fast-food, almost 24 h working hours of fast-food restaurants and their relative proximity to the respondents. From the market point of view, a significant research result is that respondents gave preference to domestic versus foreign fast-food brands.

scholarly journals Factors affecting renewable energy supply chain link: A case of solar power in Vietnam

2021 ◽  
Vol 9 (4) ◽  
pp. 989-994 ◽  
Author(s):  
Do Thi Kim Tien ◽  
Nguyen Thi Kim Chi ◽  
Nguyen Duc Duong
Keyword(s):  
Solar Power ◽  
Production Capacity ◽  
Single Crystal Silicon ◽  
Global Market ◽  
Domestic Market ◽  
Solar Panels ◽  
Crystal Silicon ◽  
Factors Affecting ◽  
Chain Link ◽  
Construction Operation

Solar power is a mature and fast-growing field based on single crystal silicon wafer technology. Although China, Europe and the US are the main markets, 80 percent of the modules are manufactured in Asia. In Vietnam, modules are manufactured in collaboration with Chinese and American manufacturers. In 2017, there were 5 GW of solar panels produced in Vietnam, accounting for 7% of the global market. The domestic solar market is expected to peak at around 1.8 GW/year according to the targets set out in the revised PDP 7. The domestic module production capacity, currently devoted entirely to export, is around 5.2 GW/year, three times the expected maximum capacity of the domestic market. In that context, due to the normal size of factories, only a few parts factories can sell to the domestic market, while the majority still must rely on exports. But it is important to map out a clear roadmap for 12 GW of solar power that will encourage the formation of EPC companies and other domestic service companies in Vietnam to build factories according to the plan. Construction, operation, maintenance, and production for the domestic market has the potential to increase Vietnam's GDP by about 0.25% by 2030 and create more than 25,000 jobs.

scholarly journals Comparative Analysis of Solar Panel Output Power: Matrix Vs Tree Form

2020 ◽  
Vol 307 ◽  
pp. 01002
Author(s):  
Rahul Deep ◽  
Abhishek Mishra ◽  
Anshul Agarwal
Keyword(s):  
Energy Demand ◽  
Solar Power ◽  
Metal Structure ◽  
Point Of View ◽  
Solar Panel ◽  
Solar Pv ◽  
Solar Panels ◽  
Pv System ◽  
Tree Form ◽  
In Series

Solar energy is most important form of renewable energy. It is cheap and easily available but it required a lot of area for production of solar power to install them in a particular space. This paper proposes a comparison of solar panel in matrix form and a solar power tree in a particular area. A solar power tree requires very less place to produce efficient energy. Solar Tree is made of metal structure , it has a number of solar panels which are used to give the shape of a tree and arranged in a tall tower. Spiralling phyllataxy is technique used to improve the efficiency of the plant as it prevent the lower panel shadowing. Solar photovoltaic modules are arranged in series form like fibonacci series in place of leaves in solar tree. By using this technique the amount of energy produced by solar tree is more than the energy produce by an array of solar cells. Solar trees are produces about 50% more electricity .The increasing energy demand, economy of land, the solar tree concept is very successful one and should be implemented to provide electricity. Solar tree is much better than the traditional solar PV system in area point of view and also more efficient.

Pescadores migrantes: análisis de su dinámica e integración Social

2019 ◽  
Vol 37 (3) ◽  
pp. 18
Author(s):  
Fernando González Laxe
Keyword(s):  
Renewable Resources ◽  
Sustainable Management ◽  
Social Groups ◽  
Technological Innovations ◽  
Social Competition ◽  
Factors Affecting ◽  
Fish Stocks ◽  
Fishery Resources ◽  
Migration Dynamics ◽  
The Many

The globalization of the economy encourages massive population displacements and inevitably generates a cosmopolitization of societies. This leads to concern, misunderstanding and rejection. The most vulnerable social groups in society can perceive the population as intruders and enemies in social competition. Undoubtedly, the extreme spatial instability of fishery resources is among the many factors affecting migration dynamics. Various reasons for the mobility of fishermen are relevant around this concept. These include aspect related to traditions, to the capitalisation of activity, to technological innovations, and to innovation exchanges concerning the location of fish stocks. This article reflects on spatial increase of fishermen’s. The analyse are part of the paradigm of the sustainable management of common renewable resources, in particular fishery resources. It presents three lines of analysis: the reason for mobility; the choice of destination; and are the integration into host units.

WISATA BAHARI PADA ZONA PEMANFAATAN TAMAN NASIONAL MANUSELA: POTENSI DAN FAKTOR PENGARUH PENGEMBANGAN

2018 ◽  
Vol 2 (2) ◽  
pp. 66-73
Author(s):  
Ivonne R. G. Kaya ◽  
Fildo De Lima
Keyword(s):  
National Park ◽  
Point Of View ◽  
Structured Interviews ◽  
Factors Affecting ◽  
Tourist Attractions ◽  
Income Sources ◽  
Economic Progress ◽  
Key Driver ◽  
Tourism Attractions ◽  
Depth Interviews

Tourism has become one of the major players in ‎international commerce and represents one of the main income ‎sources for many developing countries at the same time. These dynamics have turned tourism into a key driver for socio-‎economic progress.‎ This article described the potential of tourism attraction and factor affecting the development of marine tourism area in the utilization zone of Manusela National Park. Semi-structured interviews, in-depth interviews and participant observations were conducted with respondent (n=110) in Bellarizky, Air Belanda, Ora Beach and Lizar Bahari resort. The potential of tourist attractions in the utilization zone of Manusela National Park is as a snorkeling, diving and point of view. Factors affecting the development are service, transportation, supporting facilities and tourism attractions.

scholarly journals Different Techniques to Mitigate Partial Shading in Photovoltaic Panels

Energies ◽  
2021 ◽  
Vol 14 (13) ◽  
pp. 3863
Author(s):  
Tiago Alves ◽  
João Paulo N. Torres ◽  
Ricardo A. Marques Lameirinhas ◽  
Carlos A. F. Fernandes
Keyword(s):  
Cell Model ◽  
Research Work ◽  
Experimental Tests ◽  
Operating Conditions ◽  
Pv System ◽  
Partial Shading ◽  
System Architectures ◽  
Pv Systems ◽  
Advantages And Disadvantages ◽  
Pv Panel

The effect of partial shading in photovoltaic (PV) panels is one of the biggest problems regarding power losses in PV systems. When the irradiance pattern throughout a PV panel is inequal, some cells with the possibility of higher power production will produce less and start to deteriorate. The objective of this research work is to present, test and discuss different techniques to help mitigate partial shading in PV panels, observing and commenting the advantages and disadvantages for different PV technologies under different operating conditions. The motivation is to contribute with research, simulation, and experimental work. Several state-of-the-artsolutions to the problem will be presented: different topologies in the interconnection of the panels; different PV system architectures, and also introducing new solution hypotheses, such as different cell interconnections topologies. Alongside, benefits and limitations will be discussed. To obtain actual results, the simulation work was conducted by creating MATLAB/Simulink models for each different technique tested, all centered around the 1M5P PV cell model. The several techniques tested will also take into account different patterns and sizes of partial shading, different PV panel technologies, different values of source irradiation, and different PV array sizes. The results will be discussed and validated by experimental tests.

scholarly journals Comparison between Concentrated Solar Power and Gas-Based Generation in Terms of Economic and Flexibility-Related Aspects in Chile

Energies ◽  
2021 ◽  
Vol 14 (4) ◽  
pp. 1063
Author(s):  
Catalina Hernández Moris ◽  
Maria Teresa Cerda Guevara ◽  
Alois Salmon ◽  
Alvaro Lorca
Keyword(s):  
Natural Gas ◽  
Solar Power ◽  
Renewable Energy Sources ◽  
Cost Effective ◽  
Hybrid Plant ◽  
Point Of View ◽  
Concentrated Solar Power ◽  
Economic Point ◽  
Hybrid Plants ◽  
Cost Of Energy

The energy sector in Chile demands a significant increase in renewable energy sources in the near future, and concentrated solar power (CSP) technologies are becoming increasingly competitive as compared to natural gas plants. Motivated by this, this paper presents a comparison between solar technologies such as hybrid plants and natural gas-based thermal technologies, as both technologies share several characteristics that are comparable and beneficial for the power grid. This comparison is made from an economic point of view using the Levelized Cost of Energy (LCOE) metric and in terms of the systemic benefits related to flexibility, which is very much required due to the current decarbonization scenario of Chile’s energy matrix. The results show that the LCOE of the four hybrid plant models studied is lower than the LCOE of the gas plant. A solar hybrid plant configuration composed of a photovoltaic and solar tower plant (STP) with 13 h of storage and without generation restrictions has an LCOE 53 USD/MWh, while the natural gas technology evaluated with an 85% plant factor and a variable fuel cost of 2.0 USD/MMBtu has an LCOE of 86 USD/MWh. Thus, solar hybrid plants under a particular set of conditions are shown to be more cost-effective than their closest competitor for the Chilean grid while still providing significant dispatchability and flexibility.

PORTFOLIO ANALYSIS IN THE DEVELOPMENT OF CORPORATE STRATEGY

2021 ◽  
Vol 2 (10) ◽  
pp. 13-20
Author(s):  
Ekaterina A. Egorova ◽  
◽  
Polina V. Syrovatkina ◽  
Tatiana F. Chernova ◽  
Irina S. Brikoshina ◽  
...  
Keyword(s):  
Strategic Management ◽  
Corporate Strategy ◽  
Portfolio Analysis ◽  
Point Of View ◽  
Factors Affecting ◽  
Number Of Factors ◽  
Market Situation

This article reveals the specifics of developing a corporate strategy using portfolio analysis, taking into account the current market situation, which has created a number of factors affecting labor produc-tivity, internal and external policies of organizations, using the example of the work of the "Vishnevii sad" theater. The information about portfolio analysis in the development of corporate strategy is presented from the point of view of strategic management. Both theoretical and practical data are given, including different ways of constructing portfolio analysis, rules and methods that can be implemented. Proposals for modifica-tion and improvement of internal processes taking into account the influence of extraneous factors, possible goals and results are presented.

Sign in / Sign up

Export Citation Format

Share Document