scholarly journals Recent Improvements of the PV Solar Energy Generation Performance

2021 ◽  
Vol 10 (3) ◽  
pp. 117-129
Author(s):  
Temesgen Abera Takiso ◽  
◽  
Birtukan Tekle Manbecho ◽  
Keyword(s):  
Solar Energy ◽  
Carbon Dioxide Emissions ◽  
Energy Demand ◽  
Weather Conditions ◽  
Energy Generation ◽  
Semiconductor Materials ◽  
Natural Phenomena ◽  
Essential Characteristic ◽  
The World ◽  
Overall Performance

PV solar energy is the upcoming king of the energy source in the world, which is the fastest growing, most available, sustainable, clean, and environmentally friendly renewable energy. The essential characteristic of PV solar energy is generating the maximum power at mid-day. At the same time, the energy demand is high during the daytime. Due to this, PV solar energy replaces the conventional energy demand at peak periods. The sun is the source of PV solar energy, and it changed into electricity directly by using solar cells, which are made from semiconductor materials called silicon. Therefore, PV solar energy plays a crucial role in providing usable energy, and as well as reducing carbon dioxide emissions. However, the solar energy generation systems not achieved the desired efficiency yet, because of many unsolved problems like weather conditions, losses, materials made by and so on. The aims of this paper is to review the current literature on the improvement of the PV solar energy generation system's overall performance. First, to figure out the existing challenges, like environmental factors and natural phenomena that affect the PV solar modules efficiency. Then it presents the techniques that are used to enhance the PV solar modules overall performance. Finally, to propose the best ways and techniques to improve the PV modules efficiency and suggest to further studies.

METEOROLOGICAL VOCABULARY IN UKRAINIAN AND CHINESE LANGUAGES: SYSTEMATIC TRANSLATION

2020 ◽  
Vol 2020 (31) ◽  
pp. 36-50
Author(s):  
Natalia Gavrilyuk
Keyword(s):  
Human Life ◽  
Modern Science ◽  
Weather Conditions ◽  
Well Being ◽  
Natural Phenomena ◽  
Important Place ◽  
Close Link ◽  
Ancient People ◽  
The World ◽  
The Impact

Within the anthropocentric paradigm of modern linguistics there is a steady interest in the human factor in language, which, among other things, is realized through the close attention of researchers to the theory of linguistic pictures of the world, which fully reflects the uniqueness of peoples Human life and activity are inseparable from nature. Nature is one, but manifests itself in various forms. In the process of learning about nature, man tries to realize both its unity and diversity. A special place in the perception of the world by man is occupied by climatic and weather phenomena that affect human behavior in the world, various aspects of his life, including economic, as well as well-being. In the IV century. BC became aware of the impact of fluctuations in weather conditions on human health. For example, Hippocrates established a close link between human disease and the weather conditions in which he lives. Over the centuries, people have gathered a variety of knowledge about nature: from misunderstanding of natural phenomena, fear of them, inherent in ancient people, to today’s scientific knowledge of nature, from the first folk signs of weather to the formation of modern science — meteorology. Nature as a source of everything necessary for man has an impact on both the material and spiritual culture of society. Therefore, knowledge of meteorological phenomena occupies an important place in the awareness of reality. The article considers the peculiarities of meteorological vocabulary in Chinese and Ukrainian languages, as well as the peculiarities of meteorological vocabulary translation in two languages.

scholarly journals A Review of Solar Radiation Models—Part I

2013 ◽  
Vol 2013 ◽  
pp. 1-11 ◽  
Author(s):  
A. K. Katiyar ◽  
C. K. Pandey
Keyword(s):  
Renewable Energy ◽  
Solar Radiation ◽  
Solar Energy ◽  
Energy Demand ◽  
Socioeconomic Development ◽  
Global Solar Radiation ◽  
Point Of View ◽  
Climate Conditions ◽  
Energy Devices ◽  
The World

Energy is considered as a key source for the future and plays a pivotal role in its socioeconomic development by raising the standard of living and the quality of life, not only for India but also for the world. In view of the scarce fossil fuel reserves, solar energy is one of the important sources of renewable energy used in India because of the suitable climate conditions. It receives about 5485.17 Wh/m2day of solar insolation with an annual total of about 19, 74, 661.2 Wh/m2. Except for the monsoon months, solar radiation incidence is very encouraging, from the application point of view. For the efficient functioning and better performance of solar energy device, the information of solar radiation and its components at particular location is very essential for designing the solar energy devices. Therefore, over the years, several empirical correlations have been developed in order to estimate the more appropriate solar radiation in India as well as around the world. Here we present a review of different solar radiation models which predict global solar radiation and discussed the long-term plan to meet future energy demand with renewable energy due to economy growth.

scholarly journals Solar energy contribution to the energy demand for air conditioning system in an office building under Tripoli climate conditions

2014 ◽  
Vol 18 (suppl.1) ◽  
pp. 1-12 ◽  
Author(s):  
Mohamed Musbah ◽  
Branislav Zivkovic ◽  
Franc Kosi ◽  
Mohamed Abdulgalil ◽  
Aleksandra Sretenovic
Keyword(s):  
Solar Energy ◽  
Surface Area ◽  
Energy Demand ◽  
Air Conditioning ◽  
Slope Angle ◽  
Weather Conditions ◽  
Time Of Day ◽  
Office Building ◽  
Energy Fraction ◽  
Solar Fraction

The feasibility of solar assisted air conditioning in an office building under Tripoli weather conditions is investigated in this paper. A single-effect lithium bromide absorption cycle powered by means of flat-plate solar collectors was modeled in order to predict the potential of the solar energy share. The cooling load profile was generated by using an detailed hourly based program and Typical meteorological year for Tripoli. System performance and solar energy fraction were calculated by varying two major parameters (collector?s slope angle and collector area). The maximum solar fraction of 48% was obtained by means of 1400 m2 of collector surface area. Analysis of results showed that, besides the collector surface area, the main factors affecting the solar fraction were the local weather conditions (intensity of incident solar radiation) and the time of day when the plant was operated.

scholarly journals Solar PV for Water Pumping and Irrigation

2015 ◽  
Vol 11 (1) ◽  
pp. 9-28
Author(s):  
I. Patay ◽  
M. Montvajszki
Keyword(s):  
Solar Energy ◽  
Energy Demand ◽  
Electric Energy ◽  
High Energy ◽  
Energy Costs ◽  
Solar Pv ◽  
Irrigation Period ◽  
Water Pumping ◽  
Pump Station ◽  
The World

Water pumping for irrigation has a relatively high energy demand, depending on the applied irrigation method. At the same time, there is a considerable energy from the sun during the irrigation period. The solar PV (photovoltaic) technology may be suitable to ensure electric energy for pumping in many cases in agriculture, where the electric network is not available or reduction of the energy costs is wanted. There are some pilot plants for water pumping on the base of solar energy in the world and the spreading of these solar technologies is predictable. The solar energy based pumping process can be approached both in theoretical and experimental ways. In this paper, both the theoretical questions of the solar based pumping process and the experimental results of a model testing pump station powered by PV panels are shown.

scholarly journals Current Status, Scenario, and Prospective of Renewable Energy in Algeria: A Review

Energies ◽  
2021 ◽  
Vol 14 (9) ◽  
pp. 2354
Author(s):  
Younes Zahraoui ◽  
M. Reyasudin Basir Khan ◽  
Ibrahim AlHamrouni ◽  
Saad Mekhilef ◽  
Mahrous Ahmed
Keyword(s):  
Solar Wind ◽  
Renewable Energy ◽  
Carbon Dioxide Emissions ◽  
Energy Demand ◽  
Fossil Fuels ◽  
Energy Generation ◽  
Current Status ◽  
Primary Concern ◽  
Small Contribution ◽  
Renewable Energy Generation

Energy demand has been overgrowing in developing countries. Moreover, the fluctuation of fuel prices is a primary concern faced by many countries that highly rely on conventional power generation to meet the load demand. Hence, the need to use alternative resources, such as renewable energy, is crucial in order to mitigate fossil fuel dependency, while ensuring reductions in carbon dioxide emissions. Algeria—being the largest county in Africa—has experienced a rapid growth in energy demand over the past decade due to the significant increase in residential, commercial, and industry sectors. Currently, the hydrocarbon-rich nation is highly dependent on fossil fuels for electricity generation, with renewable energy only having a small contribution to the country’s energy mix. However, the country has massive potential for renewable energy generation, such as solar, wind, biomass, geothermal, and hydropower. Therefore, the government aims to diversify away from fossil fuels and promote renewable energy generation through policies and renewable energy-related programs. The country’s Renewable Energy and Energy Efficiency Development Plan focuses on large scale solar, wind generation as well as geothermal and biomass technologies. This paper provides an update on the current energy position and renewable energy status in Algeria. Moreover, this paper discusses renewable energy (RE) policies and programs that aim to increase the country’s renewable energy generation and its implementation status.

scholarly journals Towards sustainable and efficient p-type metal oxide semiconductor materials in dye-sensitised photocathodes for solar energy conversion

2020 ◽  
Vol 22 (25) ◽  
pp. 13850-13861
Author(s):  
Sina Wrede ◽  
Haining Tian
Keyword(s):  
Solar Energy ◽  
Metal Oxide ◽  
Energy Conversion ◽  
Renewable Resources ◽  
Energy Demand ◽  
Clean Energy ◽  
Metal Oxide Semiconductor ◽  
Oxide Semiconductor ◽  
Semiconductor Materials ◽  
P Type

In order to meet the ever-growing global energy demand for affordable and clean energy, it is essential to provide this energy by renewable resources and consider the eco-efficiency of the production and abundance of the utilised materials.

The contribution of spatiotemporal modelling to spatial planning instruments on the local level

2021 ◽  
Author(s):  
Peter Lichtenwoehrer ◽  
Georg Neugebauer ◽  
Lore Abart-Heriszt ◽  
Franz Suppan ◽  
Gernot Stoeglehner
Keyword(s):  
Renewable Energy ◽  
Solar Energy ◽  
Spatial Planning ◽  
Energy Supply ◽  
Energy Demand ◽  
Local Level ◽  
Energy Transition ◽  
Energy Generation ◽  
Added Value

<p>In the course of the energy transition, spatial and temporal aspects of energy demand and renewable energy supply are increasingly coming to the forefront of scientific studies and political debates. In this context, the use of spatiotemporal models has been identified as a decisive methodology for integrated spatial and energy planning. However, the transformation of spatiotemporal results into concrete spatial planning instruments has not yet been sufficiently discussed. Therefore, this research aims to provide answers by using specific results of a case study in Austria. In the case study evaluation, energy demand is considered in high spatial resolution using statistic data in 250m raster cells as a basis. The results are supplemented with an assessment of high spatio-temporal solar energy potentials. Taking these results as a basis, the following questions are addressed: How can spatial and temporal evaluations of energy demand and supply support the energy transition by means of spatial planning on the local level? What measures with respect to renewable energy generation, storage and grid capacity can be derived and which effects are expected to be achieved? With respect to renewable energy provision, initial results reveal added value for the spatial delimitation of district heating supply areas. Further, building integrated solar energy generation reveals high shares of excess energy – both thermal and electric – which has to be properly used, taking into account different sectors of energy demand. As a consequence, the results of this research also offer the opportunity to reflect on the benefits of sector coupling, as well as the new organization of energy supply via energy communities.</p>

scholarly journals THE CONCEPT OF INTERNET OF ENERGY IN RUSSIA: DRIVERS AND PERSPECTIVES

2018 ◽  
pp. 60-65
Author(s):  
G. G. NALBANDYAN ◽  
T. V. KHOVALOVA
Keyword(s):  
Carbon Dioxide ◽  
Carbon Dioxide Emissions ◽  
Energy Generation ◽  
Energy Crisis ◽  
The Internet ◽  
Intelligent Network ◽  
The World ◽  
New Energy ◽  
Promising Solution

The energy crisis and carbon dioxide emissions have become two of the most important problems in the world. As a very promising solution to these problems is the concept of Internet of Energy (IoE). The Internet of energy is a new energy generation paradigm that develops the revolutionary vision of an intelligent network, and tries to answer the question: how it is possible to achieve coordination and optimization in the macro-energy system.In this study we identify and systematize drivers that promote the implementation of IoE and identify the key benefits that can be obtained by implementing this system.

scholarly journals Solar energy use for water pre-heating in boilers of agro-industries

2014 ◽  
Vol 34 (3) ◽  
pp. 451-460 ◽  
Author(s):  
Rafael Celuppi ◽  
Jaqueline Scapinello ◽  
Felipe G. D. Andrade ◽  
Jaime H. P. Revello ◽  
Jacir Dal Magro
Keyword(s):  
Solar Energy ◽  
Energy Demand ◽  
Energy Use ◽  
Industrial Sector ◽  
Maximum Temperature ◽  
Liquefied Petroleum Gas ◽  
Heating Systems ◽  
World Energy ◽  
The World ◽  
Flow Through

Energy consumption in the world has been growing every year. The industrial sector represents 27.32% of the world energy demand. Heating systems that use solar energy may contribute with a percentage of the total energy required by industries. This work aimed to study the use of vacuum solar collectors for water pre-heating in boilers. We used four collectors installed according to NBR 15,569; water flow through the tubes was 0.058 L/s, and temperature in the inlet and outlet pipes was measured. Results showed that instantaneous radiation, and inlet fluid and room temperatures are variables that influence the process, reaching water maximum temperature in the solar collector outlet of 97.9 °C, and efficiency of approximately 65% for most experiments. For the financial viability evaluation, the payback study was applied, which resulted in 4; 7 and 5 years, for the respective sources: firewood, LPG (liquefied petroleum gas), and electricity. Regarding the calculation of the annual contribution to the reduction of greenhouse gases, it was, respectively, 2.162 and 356 kg of CO2 per m² of collector tubes, in comparison with firewood and LPG.

scholarly journals The effect of environmental changes on the efficiency of the PV system

2020 ◽  
Vol 18 (1) ◽  
pp. 558 ◽  
Author(s):  
Adeel Saleem ◽  
Atif Iqbal ◽  
Kashif Mehmood ◽  
Manoj Kumar Panjwani ◽  
Fareed Hussain Mangi ◽  
...  
Keyword(s):  
Solar Cell ◽  
Solar Energy ◽  
Energy Demand ◽  
Climate Changes ◽  
Environmental Changes ◽  
Renewable Energy Resources ◽  
Pv System ◽  
Photovoltaic Panel ◽  
Simulink Model ◽  
Overall Performance

<p>Advancements in the field of energy are among priorities of modern-day research. Most of the modern studies concern particularly on renewable energy resources especially that of Solar Energy to meet the energy demand of the future energy markets. Solar energy is one of the richest sources of nature, but involvement of environmental effects readily affects the overall performance of the Photovoltaic Panel. This paper highlights the importance of the solar energy, techniques and comparison of mono-crystalline and poly-crystalline and their particular energy profile. A Matlab/Simulink model is constructed to analyze the behavior of solar cell on effect of irradiance and temperature. Experimental results show the adverse effect of humidity, shading, direction and climate changes on the performance of the solar cell.</p>

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