scholarly journals Environmental impact of energy production with generators

2019 ◽  
Vol 3 (3) ◽  
pp. 25-31
Author(s):  
Yoan Pablo Rodríguez Monier ◽  
Rodolfo Vila Feijoo ◽  
Kenichi Gasbar Garcia Alvarez ◽  
Majela Prieto Betancourt

The generation of energy with fossil fuels, is one of the actions that currently affects the environment on the planet, The pollution that occurs in the generation processes causes traces that take many years to disappear, currently only the appropriate environmental management systems can control these effects by taking measures that can be educational, training and dissemination activities only a Global effort will help mitigate the negative effects caused in power generation. Energy is necessary for the continuity of development, which means that. At present, environmental pollution seems to have become an inevitable element and something that every modern society must pay if it does not want to give up its comforts, therefore in the process of introducing new technologies in energy generation must take measures that mitigate these negative impacts, valuing their magnitude and ways to proper gestate.

2012 ◽  
Vol 33 (4) ◽  
pp. 697-701 ◽  
Author(s):  
Anna Kacprzak ◽  
Mariusz Matyka ◽  
Liliana Krzystek ◽  
Stanisław Ledakowicz

The world in 21st century is facing the problem of growing energy consumption while the supply of fossil fuels is being reduced. This resulted in the development of research into the use of renewable energy sources and development of new technologies for energy production. In Polish conditions the development of agricultural biogas plants finds its legitimacy in the document developed by the Ministry titled "Trends in agricultural biogas plants in Poland in 2010-2020”. The purpose of this study was to investigate the influence of the weather conditions and the degree of nitrogen fertilisation on yield of reed canary grass (Phalaris Arundinacea L.) and to determine their susceptibility to anaerobic digestion, and usefulness of the production of biogas. Carried out experiments showed that increasing nitrogen fertilisation (from 40 to 120 kg N/ha) linearly increased canary grass green biomass yield from 32 to 46.3 t/ha. However, the highest biogas yield 126 m3/ha was obtained when 80 kg N/ha was applied.


Author(s):  
Virendra Kumar ◽  
Swati SachdevSanjeev Kumar ◽  
Sanjeev Kumar

Methane is an important gas of earth's environment. It emits from various naturally as well as anthropogenic sources and responsible for maintaining earth's global temperature favorable for humans and other organisms to live. In recent years many activities of human development led to generation of a large volume of methane which has exhibited catastrophic effect on humans as well as animal lives on earth. Methane poses high global warming potential and has been found second most abounded gas in the environment responsible for global warming of earth after carbon dioxide which is well documented in gigantic body of literature. Methane emission is projected to reach 254 Gg/ year by the year 2025. The sources of methane generation are scattered in nature that includes marshes, paddy crops, landfills and natural anaerobic decomposition of the organic matter present in the environment and digestion in ruminants as well handling and use of fossil fuels. The versatile sources of methane generation are uncontrolled and tough to be tamed. However, its emissions and negative effects could be reduced by effectively and efficiently managing its sources of emission and utilizing generated volume for energy production. This study emphasize on the harmful as well as beneficial aspects of the methane, its utilization and strategies to control emission from various sources.


Author(s):  
Junjie Wu ◽  
Hongjuan Hou ◽  
Yongping Yang

With the shortage of fossil fuels and its negative effects on the environment, solar energy as one type of renewable energy has attracted increasing attention both socially and politically. There are two approached to use solar energy for generating electricity, i.e., using solar energy to directly to make work or integrating solar energy into fossil-fueled plant. The solar-aided coal-fired power generation (SACPG) mechanism is proven an effective way to use solar energy efficiently. In this paper, SACPG system and solar-alone parabolic trough CSP plant are modelled respectively. A comparison discussion related to TES system between SACPG system and solar-alone CSP plant is presented. The aim is to find what role of TES system will play in these two different systems. Through analysis, the role TES system plays varies in solar-alone power generation system and SACPG system. For solar-alone power generation system, the main function for TES system lies in storing surplus solar heat. Besides, there exists an optimum loop number with highest annual SEE with a specific TES hour. However, TES system for SACPG system not only stores the surplus solar heat, but also adjusts working condition. With the help of TES system, the working condition could be set as the high-pressure extraction steam could be totally replaced by solar heat. By doing so, annual solar power generation and annual SEE could be improved compared with that without TES system.


2021 ◽  
Vol 12 (2) ◽  
Author(s):  
Isak Karabegović

It is well-known that, in the past decades, the burning of fossil fuels was identified as the major cause of climate change. Climate change mitigation is becoming a central concern of global society. Limiting global warming to below 2 °C above the temperature of the pre-industrial period is the key to preserving global ecosystems and providing a secure basis for human activities, as well as reducing excessive environmental change. The ambitions increased at an accelerated pace with a dramatic expansion of net zero-emission targets. Increasing pressure from citizens and society has forced countries to intensify their climate plans, while the private sector has bought a record amount of renewable energy. An energy system based on fossil fuels must be replaced by renewable energy with low carbon emissions with improved energy efficiency. That applies to all consumers of fossil energy: cities, villages, building sectors, industry, transport, agriculture, and forestry. The paper explores and presents the strategy of energy development of renewable energy sources in the world. The application of new technologies that have led to developing renewable energy sources is presented in detail: wind energy, solar energy, small hydropower plants, biomass, and their increase in the total share of energy production, i.e., reduced fossil fuel use in energy production. Investments in new technologies used in renewable energy sources have led to increases in employment worldwide. Analysis of the trend of increased energy production from RES (Renewable Energy Sources) with investment plans, the employment rate for each energy source, and the development of renewable energy sources in the coming period are provided.


Energies ◽  
2021 ◽  
Vol 14 (11) ◽  
pp. 3212
Author(s):  
Stanisław Bielski ◽  
Anna Zielińska-Chmielewska ◽  
Renata Marks-Bielska

The issue of environmental management systems in food processing companies is gaining importance due to the need to reduce water withdrawal, wastewater, air emissions, and waste generation. New technological solutions and innovations can reduce the negative effects of the enterprises’ production facilities on the environment. In Poland, the phenomenon of increasing use of the amount of renewable energy sources is influenced by, e.g., adopted national and EU legislation, development of new technologies in the field of energy, and increasing awareness of producers and consumers in the field of ecology and environmental protection. It is also important that the state creates favorable conditions for the use of renewable energy in micro-installations. The application goal of the study is to develop a procedure for improvement of the environmental management systems for food processing companies and increase the awareness of potential use and implementation of renewable energy sources by food processing entities. In the theoretical part of the study, methods of comparative, deductive, and synthetic analysis are used. In the practical part of the study survey method, case studies, a simple flashback, and transfer of ideas are presented. The results of the research can be used by state institutions to put emphasis on the implementation of sustainable development of state policy on the food market.


SAGE Open ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 215824402110613
Author(s):  
Rafiq Muhammad Aftab ◽  
Liguo Zhang ◽  
Chih-Chun Kung

Development of renewable energy is important to modern society because climate change induced from fossil use has resulted in severe and possibly irreversible environmental impacts such as sea level rise, desertification, diminished land productivity, and increased possibility of extreme events. Therefore, the utilization of renewable and clean energy not only increases regional energy security but also alleviate the environmental risk. In this study, we employ the lifecycle assessment to examine the electricity generation from the use of municipal solid waste in China, and then investigate the emission reduction from this application. Different supply patterns of the wastes are also compared to make the results more robust. The results show that if recycled wastes are fully utilized, approximately 11,107 GWh can be generated, along with a profit of $1.2 billion from energy sales. In this case, the CO2 emission will reduce by 9.7 million metric tons. If the food waste is used in compositing and animal feed, the net power generation and emission reduction are about 8,216 GWh and 7.32 million metric tons, respectively. If additional 30% of recycled wastes are assumed to be utilized in their past use, the power generation, profit, and emission reduction will further decrease to 5,750 GWh, $697 million, and 5.12 metric tons, respectively. The results point out that the utilization of recycled wastes can effectively reduce the reliance on fossil fuels, improve energy security, and increase social welfare. Insights of the results and policy implications are also discussed in detail.


2021 ◽  
Vol 15 (2) ◽  
pp. 41-52
Author(s):  
Gábor Hornyák ◽  
Péter Bencs

One of the most debated topics of our time is climate change. For this reason, the European Union and the countries of the world are taking several steps to reduce and reverse the effect. When we talk about climate change or sustainable development, it is very important to also talk about the energy sector. The European Union aims to achieve climate neutrality by 2050, which will require significant changes in our lives, it will be a major challenge for mankind. In 2019, fossil fuels accounted for 80% of the world’s energy production. The production of energy from fossil fuels has several negative effects aside from climate change. When fossil fuels are burned, gases and particles harmful to human health are released into the air and some of the fossil fuels are raw materials to produce plastics, for example. If we use it for energy production, we waste our raw materials. What are the options for reducing the environmental impact? How can coal-based energy production be replaced? What are other ways to reduce the environmental impact? These topics are discussed in the article.


2002 ◽  
Vol 1 (1) ◽  
pp. 46-56
Author(s):  
Jitendra Prakash

The rapid depletion of fossil fuels and their adverse effect on the environment have led scientists to look for alternative sources and technologies of energy production. India took the lead in utilising biological wastes for the production of 'biogas' with varied applications like cooking and power generation. South Africa first used transesterified vegetable oil as 'biodiesel' to power vehicles. With the numerous benefits to mankind and environment, the use of biological fuels is gaining momentum throughout the world. With a little more streamlining, biofuels will be soon replacing the existing fuel sources, at the same time helping us to rectify the thoughtless exploitation of the past.


2018 ◽  
Vol 10 (9) ◽  
pp. 3315 ◽  
Author(s):  
XU Jianzhong ◽  
Albina Assenova ◽  
Vasilii Erokhin

In recent years, the environmental effects of energy production have increasingly entered into the foreground of the sustainable development agenda. Hydrocarbon-abundant countries are blamed to become the largest emitters of greenhouse gases, trace metals, and other pollutants due to extensive use of oil, gas, and coal in energy production. Combustion of fossil fuels for heat and power generation is reported to be among the major reasons for progressing climate change globally. The United Nations and other international actors have called on national governments to substantially increase the share of renewable energy, but the main point is how to incentivize the resource-rich countries to shift to greener technologies. For the example of Kazakhstan, whose energy sector is centered on coal, this paper discusses the challenges and prospects of wind power as both an environmentally friendly and efficient option to support a transition of a resource-rich country to a green economy and a sustainable energy future. Forty-two locations across the country have been assessed on the parameters of average annual wind speed, wind availability, and four types of potential for wind power production: gross, technical, economic, and emissions reduction. Some of the key findings are that at the height below 50 m above ground level, wind power production is economically viable in electricity-deficientt southern territories, particularly, in Djungar, Saryzhas, Zhuzimdyk, and Taraz. In western, central, and northern parts of Kazakhstan, at a height above 50 m, the most promising areas for wind power production are Caspian, Northwestern, Central, and Tarbagatay corridors. The paper identifies the areas with the highest emission reduction potential and elaborates the policies to encourage the selection of wind farm locations based on their “economic potential-environmental effect” ratio. The approach allows assessing the opportunities, which decentralized wind energy systems offer to transition away from a dependence on fossil fuels and to enable sustainable economic growth.


Author(s):  
Farshid Zabihian ◽  
Darrel C. Gartin ◽  
Alan S. Fung

In this paper, research will be discussed on how to scientifically, systematically, and economically reduce greenhouse gas emissions within the state of West Virginia, USA. While fossil fuels such as coal and natural gas remain the top resources within this particular state, there are new technologies, different approaches and modifications to current power generation cycles, and different fuels that can be presented to gain further reduction of these harmful emissions. To achieve this objective, eight different scenarios were introduced. In the first scenario, existing power stations’ fuel was switched to natural gas. Existing power plants were replaced by natural gas combined cycle (NGCC), integrated gasification combined cycle (IGCC), solid oxide fuel cell (SOFC), hybrid SOFC, and SOFC-IGCC hybrid power stations in scenarios number 2 to 6, respectively. The last two scenarios involved carbon capture systems. It has been found that the CO2 emissions can be significantly reduced by introducing changes and alternatives to the current cycles and methods that are in place today.


Sign in / Sign up

Export Citation Format

Share Document