scholarly journals Handbooks Engineering Science and Technology TIX

2021 ◽  
Author(s):  
Aida LEDESMA-ALBERT ◽  
Keyword(s):  
Greenhouse Gases ◽  
Fossil Fuels ◽  
Ethylene Vinyl Acetate ◽  
Solar Panels ◽  
Cell Protection ◽  
Whole Process ◽  
Iec 61215 ◽  
And Control ◽  
Current Energy ◽  
Emission Of Greenhouse Gases

Global warming and climate change coincide in their main causes, the massive emission of greenhouse gases, which retain heat in the atmosphere and on the earth's surface through the so-called greenhouse effect. The generation of electricity by means of fossil fuels is an important emitter of greenhouse gases (CO2, CH4, N2O), and halogenated compounds containing F, Cl, and Br. With the purpose of contributing to the construction of viable solutions to the current energy situation of the country and in the foundation of a sustainable future, the use of solar energy for the generation of electricity by means of solar panels represents an option. The purpose of this study is to describe and control the solar cell protection material Ethylene-Vinyl-Acetate (EVA), as a contribution to the Quality Assurance of solar panels, since the function of this material is essential for the protection of solar cells, which are a vital part of the solar panel. The tests performed were: Gel content, adhesion test, and durability tests. The results obtained were within specification according to IEC 61215. From this work it is concluded that it is important to continue testing the whole process and components of the solar panels in order to guarantee the useful life of the finished product, as well as to contribute to sustainable development.

scholarly journals Description and control of solar cell protection material for quality assurance of a photovoltaic panel

2021 ◽  
pp. 1-23
Author(s):  
Araceli SALAZAR-PERALTA ◽  
◽  
José Alfredo PICHARDO-SALAZAR ◽  
Ulises PICHARDO-SALAZAR ◽  
Orlando SORIANO-VARGAS
Keyword(s):  
Quality Assurance ◽  
Solar Cell ◽  
Greenhouse Gases ◽  
Fossil Fuels ◽  
Ethylene Vinyl Acetate ◽  
Solar Panels ◽  
Cell Protection ◽  
Photovoltaic Panel ◽  
Whole Process ◽  
And Control

Global warming and climate change coincide in their main causes, the massive emission of greenhouse gases, which retain heat in the atmosphere and on the earth's surface through the so-called greenhouse effect. The generation of electricity by means of fossil fuels is an important emitter of greenhouse gases (CO2, CH4, N2O), and halogenated compounds containing F, Cl, and Br. With the purpose of contributing to the construction of viable solutions to the current energy situation of the country and in the foundation of a sustainable future, the use of solar energy for the generation of electricity by means of solar panels represents an option. The purpose of this study is to describe and control the solar cell protection material Ethylene-Vinyl-Acetate (EVA), as a contribution to the Quality Assurance of solar panels, since the function of this material is essential for the protection of solar cells, which are a vital part of the solar panel. The tests performed were: Gel content, adhesion test, and durability tests. The results obtained were within specification according to IEC 61215. From this work it is concluded that it is important to continue testing the whole process and components of the solar panels in order to guarantee the useful life of the finished product, as well as to contribute to sustainable development.

Global Warming and Its Multiple Causes

2020 ◽  
Vol 3 (2) ◽  
Author(s):  
Romdhane Ben Slama
Keyword(s):  
Global Warming ◽  
Greenhouse Gases ◽  
Greenhouse Effect ◽  
Infrared Radiation ◽  
Fossil Fuels ◽  
Ambient Air ◽  
The Earth ◽  
The One ◽  
Heat Released ◽  
Emission Of Greenhouse Gases

The global warming which preoccupies humanity, is still considered to be linked to a single cause which is the emission of greenhouse gases, CO2 in particular. In this article, we try to show that, on the one hand, the greenhouse effect (the radiative imprisonment to use the scientific term) took place in conjunction with the infrared radiation emitted by the earth. The surplus of CO2 due to the combustion of fossil fuels, but also the surplus of infrared emissions from artificialized soils contribute together or each separately,  to the imbalance of the natural greenhouse effect and the trend of global warming. In addition, another actor acting directly and instantaneously on the warming of the ambient air is the heat released by fossil fuels estimated at 17415.1010 kWh / year inducing a rise in temperature of 0.122 ° C, or 12.2 ° C / century.

Nuclear, Solar and Desalination Working Together Symbiotically

2016 ◽  
Author(s):  
Hamad Alwashmi ◽  
Jay F. Kunze
Keyword(s):  
Drinking Water ◽  
Greenhouse Gases ◽  
Nuclear Power ◽  
Fossil Fuels ◽  
Energy Systems ◽  
Capital Costs ◽  
The World ◽  
Working Together ◽  
Fuel Costs ◽  
Emission Of Greenhouse Gases

In many parts of the world, drinking water is not available except through desalination. Most of these areas have an abundance of solar energy, with few cloudy periods. Energy is required for desalination and for producing electricity. Traditionally this energy has been supplied by fossil fuels. However, even in those parts of the world that have abundant fossil fuels, using them for these purposes is being discouraged for two reasons: 1) the emission of greenhouse gases from combustion of fossil fuels, and 2) the higher value of fossil fuels when used for transportation. Nuclear power and solar power are both proposed as replacements for fossil fuels in these locations. Both of these energy systems have high capital costs, and negligible fuel costs (zero for solar) Instead of these two primary forms of energy competing, this paper shows how they can compliment each other, especially where a significant part of the electricity demand is used for desalination.

The Environment and the Role of Gas

1993 ◽  
Vol 4 (2) ◽  
pp. 110-122
Author(s):  
Sylvie Cornot-Gandolphe
Keyword(s):  
Natural Gas ◽  
Greenhouse Gases ◽  
Fossil Fuels ◽  
Financial Constraints ◽  
Gas Production ◽  
Transport Costs ◽  
Consumer Markets ◽  
Emission Of Greenhouse Gases

The combustion of fossil fuels causes the emission of greenhouse gases such as C02, methane and NOx. The use of natural gas in place of oil and coal can help indeed to reduce greenhouse gases emission because natural gas is the cleanest of fossil fuels. Its non-pollutant character offers it extremely favourable prospects. World consumption is bound to increase rapidly, from 2120 Bern in 1991 to 3100-3500 Bern in 2010. Expanding world output will not raise any problems of resources because natural gas is an abundant energy source. However, gas production and transport costs are going to rise due to increasing distances between main gas reserves and consumer markets. The financial constraints will be the major factor limiting the growth in natural gas trade. And new solutions would have to be found in order to implement today the projects required in the long-term.

scholarly journals Effects of solar panels on electrical networks

2020 ◽  
Vol 14 (1) ◽  
pp. 50-60
Author(s):  
Peter Bencs ◽  
Mohammed Al-Ktranee ◽  
Károly Marcell Mészáros
Keyword(s):  
Energy Demand ◽  
Fossil Fuels ◽  
Renewable Energy Sources ◽  
Public Utility ◽  
Pollutant Emissions ◽  
Solar Panels ◽  
Electrical Networks ◽  
Solar Systems ◽  
The Public ◽  
Current Energy

Today, the increasing use of solar energy contributes to the EU's energy policies. Increasing use of renewable energy sources reduces pollutant emissions, dependence on fossil fuels and improves air quality. Globally, installed photovoltaic capacity has reached 400 GW by the end of 2017, and is projected to reach 4,500 GW by 2050. In the context of this research, we would like to present a detailed presentation of the possibilities and effects of integrating solar systems into electricity networks. The integration of renewable energies into networks is of paramount importance to researchers because of current energy demand and the depletion of fossil fuel reserves and environmental impacts. In this study, we highlight the effects of solar network integration on both the solar system and the public utility service. We also report on the opportunities and impacts of integration in Hungary in connection with our research. Today, solar panels are the cornerstone of sustainable development.

Hydrogen

2020 ◽  
pp. 168-194
Author(s):  
Athule Ngqalakwezi ◽  
Diakanua Bevon Nkazi ◽  
Siwela Jeffrey Baloyi ◽  
Thabang Abraham Ntho
Keyword(s):  
Global Warming ◽  
Hydrogen Storage ◽  
Greenhouse Gases ◽  
Alternative Energy ◽  
Fossil Fuels ◽  
Environmental Issues ◽  
The World ◽  
Remedial Actions ◽  
Key Issues ◽  
Emission Of Greenhouse Gases

Global warming is a pertinent issue and is quintessential of the environmental issues that the world is facing, and thereby, remedial actions and technologies that aim to alleviate this issue are of paramount importance. In this chapter, hydrogen has been discussed as an alternative energy that can potentially replace traditional fuels such as diesel and gasoline. The storage of hydrogen as a gas, liquid, and solid was discussed. The key issues in hydrogen storage were also highlighted. Furthermore, regulations and legislations concerning the emission of greenhouse gases from fossil fuels-based sources were discussed.

scholarly journals Review on Materials Used for Enhancing the Efficiency of Solar Cells

2021 ◽  
Vol 8 ◽  
pp. 70-76
Author(s):  
Anil Dhawan ◽  
S Faheem Naqvi
Keyword(s):  
Solar Energy ◽  
Greenhouse Gases ◽  
Alternative Energy ◽  
Fossil Fuels ◽  
Global Climate ◽  
Whole Process ◽  
Current State ◽  
Materials Used ◽  
Alternative Energy Resources ◽  
Working Efficiency

Global resources are limited and mindless use of them will finally lead to a scarcity. The need of the hour is to find the alternative energy resources which are abundant in nature and which deviate us from using fossils fuels. Solar Energy has gained a significant popularity in the past few decades as it is clean, meaning it does not release greenhouse gases and other harmful pollutants. It is also an abundant source of energy as it is available till the existence of the planet. Unlike fossil fuels, which are finite and cannot be replenished for thousands of years. Another drawback of fossil fuels is that they emit greenhouse gases and contribute to global climate change. Solar energy is an important technology for many reasons and has become a popular topic as many scientists around the world are working to increase the photo-electron conversion efficiency with minimum production cost. Diversified approaches have been undertaken to enhance the efficiency of solar cell. This paper will review the current state of art on photovoltaic cells (PVCs) in context to the materials used for fabrication, their possible cost and their working efficiency. This paper will also undertake the challenges that came across during the whole process and their possible solutions.

scholarly journals Analysis and prediction of the coronavirus disease epidemic in China based on an individual-based model

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Zuiyuan Guo ◽  
Dan Xiao
Keyword(s):  
Reproduction Number ◽  
Control Measures ◽  
Cumulative Number ◽  
Individual Based Model ◽  
Whole Process ◽  
Coordinate Descent Algorithm ◽  
Initial Stage ◽  
The Government ◽  
Prevention And Control Measures ◽  
And Control

AbstractWe established a stochastic individual-based model and simulated the whole process of occurrence, development, and control of the coronavirus disease epidemic and the infectors and patients leaving Hubei Province before the traffic was closed in China. Additionally, the basic reproduction number (R0) and number of infectors and patients who left Hubei were estimated using the coordinate descent algorithm. The median R0 at the initial stage of the epidemic was 4.97 (95% confidence interval [CI] 4.82–5.17). Before the traffic lockdown was implemented in Hubei, 2000 (95% CI 1982–2030) infectors and patients had left Hubei and traveled throughout the country. The model estimated that if the government had taken prevention and control measures 1 day later, the cumulative number of laboratory-confirmed patients in the whole country would have increased by 32.1%. If the lockdown of Hubei was imposed 1 day in advance, the cumulative number of laboratory-confirmed patients in other provinces would have decreased by 7.7%. The stochastic model could fit the officially issued data well and simulate the evolution process of the epidemic. The intervention measurements nationwide have effectively curbed the human-to-human transmission of severe acute respiratory syndrome coronavirus 2.

scholarly journals Recent advances in integrated CO2 capture and utilization: A review

2021 ◽  
Author(s):  
Shuzhuang Sun ◽  
Hongman Sun ◽  
Paul T Williams ◽  
Chunfei Wu
Keyword(s):  
Greenhouse Gases ◽  
Co2 Emissions ◽  
Co2 Capture ◽  
Fossil Fuels ◽  
Environmental Issues ◽  
Research Attention ◽  
Recent Advances

CO2 is one of the most important greenhouse gases leading to severe environmental issues. The increase of CO2 emissions from the consumption of fossil fuels has received much research attention....

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