scholarly journals ASSESSMENT OF REED POTENTIAL FOR THERMAL ENERGY PRODUCTION IN LATVIA

2018 ◽  
Author(s):  
Anita VESPERE ◽  
Dina POPLUGA
Keyword(s):  
Carbon Dioxide ◽  
Greenhouse Gas ◽  
Thermal Energy ◽  
Climate Changes ◽  
Fossil Fuel ◽  
Greenhouse Gas Emission ◽  
Combustion Process ◽  
Green Economy ◽  
Biomass Combustion ◽  
Low Carbon

Global challenges such as increasing population density and climate changes are putting focus on such emerging issues as transition to a green economy and mitigation of greenhouse gas emissions. Starting from 2021, activities in climate protection will be launched by the Paris Agreement, which provides not only for adapting to already occurring climate changes and reducing the expected effects but also promoting investment flows in a low carbon economy. In Latvia, one of the largest greenhouse gas emission sources is heat production from fossil fuel. Although biomass combustion generates about the same amount of carbon dioxide as fossil fuel, this is a friendlier source of energy because when it is restored, the carbon dioxide from the atmosphere is absorbed. Currently the most commonly used renewable source for the generation of thermal energy is wood. In the present research a theoretical study is conducted to assess the possibility of using another type of biomass – reeds, which is a common resource available throughout the country and recovers quickly. The research results showed that reeds can be used as an environmentally friendly alternative to firewood, but its efficient use should take into account the following factors: biomass with low humidity obtainable late in winter, the combustion process has a high ash level and before transporting, it should receive primary treatment to increase the bulk density and reduce transport costs. Reed as a separate fuel material is effective for solid fuel boilers, located close to the resource extraction site. An optimal use of this biomass source is possible in combination with other energy sources to produce pellets or briquettes.

scholarly journals ANTHROPOGENIC COMPONENT OF GREENHOUSE GAS EMISSIONS FROM THE TERRITORY OF THE KALININGRAD REGION

2020 ◽  
pp. 94-110
Author(s):  
N.V. Dvoeglazova ◽  
B.V. Chubarenko ◽  
Y.A. Kozlova
Keyword(s):  
Carbon Dioxide ◽  
Greenhouse Gases ◽  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Greenhouse Gas Emission ◽  
Main Role ◽  
Carbon Dioxide Absorption ◽  
Gas Emissions ◽  
Technology Improvement ◽  
Kaliningrad Region

The increase in greenhouse gases in the atmosphere is influenced to a greater extent by a degree of development of industry, a growth of electrification, deforestation, and the burning of fuel for the production of heating and electricity. The contribution of emissions of each of these factors and the ratio of greenhouse gases in them should be taken into account when developing the measures to prevent climate change. According to calculations of emissions from the territory of the Kaliningrad region the burning of fuel and energy resources are supposed to be playing the main role in the greenhouse gas emission from the territory of the Kaliningrad region. In statistical reference books this activity is described as the “activities for the production and distribution of electricity, gas and water.” The usage of this fuel in the energy sector is increasing: from 1742.4 thousand tons of standard fuel in 1991 up to 2193.9 in 2016. Such little increase in total emissions is due to the general technology improvement in the country. Carbon dioxide makes up the bulk of greenhouse gas emissions from the territory of the Kaliningrad region. The percentage of the gases in the total volume is as follows: CO2 - 96.7%, CH4 - 1%, N2 O - 2.3%. Its emissions for the period from 2013 to 2016 varied from 3,757.4 in 2014 to 4,091.7 in 2015 thousand tons of standard fuel, reaching its maximum value in 2015. The estimate presented in this paper is a lower estimate, since it does not take into account emissions from industrial processes, leaks, land use, waste, etc., as well as from some categories of emission sources due to the lack of data on the use of fuel in the Kaliningrad region. Among other things, the calculations of emissions of carbon dioxide, methane and nitrous oxide from the use of fuel by vehicles in 2016, which have shown to be 1.86 times less than from burning of fossil fuels for the same year (2032.87 Gg CO2 eq. and 3914.79 Gg CO2 eq., respectively) and to account for 34.5% of the total emissions, have been made. Moreover, according to the methodology for calculating emissions the factor of carbon dioxide absorption by the region’s forests has been taken into account. The amount of carbon dioxide absorbed by forests has shown to be only 11.9% of the emissions of this gas during the combustion of boiler and furnace fuel.

scholarly journals DEPENDENCE OF THE COST OF ELECTRICITY ON THE VOLUME OF GREENHOUSE GAS EMISSIONS

2022 ◽  
Vol 1 (15) ◽  
pp. 71-75
Author(s):  
Dmitriy Kononov
Keyword(s):  
Carbon Dioxide ◽  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Energy Security ◽  
Carbon Dioxide Emissions ◽  
Power Plants ◽  
Low Carbon ◽  
Electricity Prices ◽  
Low Carbon Development ◽  
The Cost

The strategy of low-carbon development of the economy and energy of Russia provides for the introduction of a fee (tax) for carbon dioxide emissions by power plants. This will seriously affect their prospective structure and lead to an increase in electricity prices. The expected neg-ative consequences for national and energy security are great. But serious and multilateral research is needed to properly assess these strategic threats

scholarly journals Competency Gaps of Employees in the Construction Sector in Terms of the Requirements of a Low-Carbon Economy. Polish and Czech Case

Energies ◽  
2021 ◽  
Vol 14 (23) ◽  
pp. 7868
Author(s):  
Honorata Howaniec ◽  
Łukasz Krzysztof Wróblewski ◽  
Hana Štverková
Keyword(s):  
Greenhouse Gas ◽  
Construction Industry ◽  
Greenhouse Gas Emission ◽  
Negative Impact ◽  
Modern Society ◽  
Construction Sector ◽  
Low Carbon ◽  
Low Carbon Economy ◽  
Low Emission ◽  
Carbon Economy

Environmental policy obliges modern society to transition to a low-carbon economy. After entering to life, the Paris Agreement obligated the signatories to prepare the first nationally determined contributions (NDCs). The NDCs aim first to reduce greenhouse gas emission targets under the UNFCCC and they apply equally to both developed and developing countries. Countries voluntarily indicate what actions will be taken to achieve the declared goals. The construction sector is an industry that is under scrutiny due to its negative impact on the environment, but it also has the potential to reduce it. Activities that can reduce greenhouse gas emissions can be carried out at various levels in the construction industry. One of them is the appropriate preparation of the staff, including equipping them with the so-called green skills. This research aimed to determine the competency gaps of people employed in the construction industry, including competencies in the field of low-emission economy. For the purposes of the study, a questionnaire survey was carried out in Poland and the Czech Republic and based on the results obtained the appropriate competencies were determined that should be possessed by people employed in the construction sector, including competencies related to a low-emission economy. Competency profiles for people employed in the construction sector were built and competency gaps of these people were determined. In both countries, no competencies have been identified in any of checked areas that meet or exceed the requirements of managers according to specific competency profiles.

scholarly journals Greenhouse Gas Emission of Broiler Chicken Production in Malaysia using Life Cycle Assessment Guidelines: A Case Study

2018 ◽  
Vol 3 (2) ◽  
pp. 87-97
Author(s):  
Syakira Afiqah Suffian ◽  
Atiah Abdullah Sidek ◽  
Toshihiko Matsuto ◽  
Muataz Hazza Al Hazza ◽  
Hazlina Md Yusof ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Nitrous Oxide ◽  
Life Cycle Assessment ◽  
Life Cycle ◽  
Greenhouse Gas ◽  
Broiler Chicken ◽  
Greenhouse Gas Emission ◽  
Gas Emission ◽  
Chicken Farm

The aim of this research was to evaluate the level of greenhouse gas emission from broiler chicken farming industry in Malaysia. In order to achieve that, Life Cycle Assessment method was chosen as a framework to complete the task. A case study was conducted at a broiler chicken farm to gather the data and information related to the broiler chicken production. Cradle-to-gate assessment including distribution stage was conducted based on the ISO14040/1044 guidelines. Inventory data for this case study was gathered in collaboration with one of the selected case study broiler chicken farm company. Greenhouse gas emission that consists of several most affected gases such as carbon dioxide, methane and nitrous oxide was studied. Result shows that the highest carbon dioxide emission came from manure, which accounted for 1,665,342 kg CO2 equivalent per total broilers while the highest methane emission came from feed, which accounted for 126,207.84 g CH4 equivalent per total broilers. For nitrous oxide emission, the highest values came from bedding which accounted for 20,316.87 g N2O equivalent per total broilers in the commercial modern broiler chicken farm. In this case study, it can be concluded that manure gives the most prominent effect to the greenhouse gas emission followed by feed and bedding materials. 

The Health Impacts of Coal-Fired Power Plants in India and the Co-benefits of Greenhouse Gas Reductions

2021 ◽  
Vol 111 ◽  
pp. 386-390
Author(s):  
Maureen Cropper ◽  
Ryna Cui ◽  
Sarath Guttikunda ◽  
Nate Hultman ◽  
Puja Jawahar ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Greenhouse Gas ◽  
Electricity Generation ◽  
Power Plants ◽  
Fossil Fuel ◽  
Paris Agreement ◽  
Health Impacts ◽  
Generating Capacity

Under the Paris Agreement, India has pledged that 40 percent of its electricity generating capacity will come from non-fossil-fuel sources by the year 2030; however, this pledge does not limit total coal-fired generating capacity. As of 2019, planned increases in coal-fired capacity totaled 95 gigawatts--46 percent of installed coal-fired capacity in 2018. In this paper, we estimate the carbon dioxide benefits and health co-benefits of not building these plants. We also estimate the mortality impacts of the 2018 stock of coal-fired power plants and use it to calculate the tax on electricity generation from coal that would internalize these damages.

scholarly journals A proposed fuel cell vehicle for reducing CO2 emissions and its contribution to reducing greenhouse gas emissions

2014 ◽  
Vol 3 (2) ◽  
pp. 252 ◽  
Author(s):  
Mohamed Mourad
Keyword(s):  
Carbon Dioxide ◽  
Fuel Cells ◽  
Fuel Cell ◽  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Co2 Emissions ◽  
Greenhouse Gas Emission ◽  
Fuel Cell Vehicle ◽  
Fuel Cell Vehicles ◽  
Gas Emissions

Because of their high efficiency and low emissions, fuel cell vehicles are undergoing extensive research and development. When considering the introduction of advanced vehicles, a complete evaluation must be performed to determine the potential impact of a technology on carbon dioxide (CO2) and greenhouse gases emissions. However, the reduction of CO2 emission from the vehicle became the most important objective for all researches institutes of vehicle technologies worldwide. There interest recently to find unconventional methods to reduce greenhouse gas emission from vehicle to keep the environment clean. This paper offers an overview and simulation study to fuel cell vehicles, with the aim of introducing their main advantages and evaluates their influence on emissions of carbon dioxide from fuel cell vehicle and compares advanced propulsion technologies on a well-to-wheel energy basis by using current technology for conventional and fuel cell. The results indicate that the use of fuel cells, and especially fuel cells that consume hydrogen, provide a good attempt for enhancing environment quality and reducing greenhouse gas (GHG) emissions. Moreover, the emission reduction percentage of fuel cell vehicle reaches to 64% comparing to the conventional vehicle. Keywords: Fuel Cell Electric Vehicle, Performance, Simulation, Driving Cycle, CO2 Emissions, Greenhouse Gas Emissions, Fuel Consumption.

scholarly journals Process analysis of solar steam reforming of methane for producing low-carbon hydrogen

RSC Advances ◽  
2020 ◽  
Vol 10 (21) ◽  
pp. 12582-12597 ◽  
Author(s):  
Enkhbayar Shagdar ◽  
Bachirou Guene Lougou ◽  
Yong Shuai ◽  
Enkhjin Ganbold ◽  
Ogugua Paul Chinonso ◽  
...  
Keyword(s):  
Hydrogen Production ◽  
Thermal Energy ◽  
Steam Reforming ◽  
Fossil Fuel ◽  
Process Analysis ◽  
Solar Thermal ◽  
Low Carbon ◽  
Solar Thermal Energy ◽  
Steam Reforming Of Methane

Integrating solar thermal energy into conventional SRM technology is a promising approach for low-carbon hydrogen production based on fossil fuel in near and midterm.

scholarly journals Greenhouse Gas Emission Offsets of Forest Residues for Bioenergy in Queensland, Australia

Forests ◽  
2021 ◽  
Vol 12 (11) ◽  
pp. 1570
Author(s):  
Leanda C. Garvie ◽  
Stephen H. Roxburgh ◽  
Fabiano A. Ximenes
Keyword(s):  
Carbon Dioxide ◽  
Renewable Energy ◽  
Greenhouse Gas ◽  
Carbon Dioxide Emissions ◽  
Fossil Fuels ◽  
Greenhouse Gas Emission ◽  
Forest Biomass ◽  
Carbon Accounting ◽  
Forest Residues ◽  
Harvest Residues

Harnessing sustainably sourced forest biomass for renewable energy is well-established in some parts of the developed world. Forest-based bioenergy has the potential to offset carbon dioxide emissions from fossil fuels, thereby playing a role in climate change mitigation. Despite having an established commercial forestry industry, with large quantities of residue generated each year, there is limited use for forest biomass for renewable energy in Queensland, and Australia more broadly. The objective of this study was to identify the carbon dioxide mitigation potential of replacing fossil fuels with bioenergy generated from forest harvest residues harnessed from commercial plantations of Pinus species in southeast Queensland. An empirical-based full carbon accounting model (FullCAM) was used to simulate the accumulation of carbon in harvest residues. The results from the FullCAM modelling were further analysed to identify the energy substitution and greenhouse gas (GHG) emissions offsets of three bioenergy scenarios. The results of the analysis suggest that the greatest opportunity to avoid or offset emissions is achieved when combined heat and power using residue feedstocks replaces coal-fired electricity. The results of this study suggest that forest residue bioenergy is a viable alternative to traditional energy sources, offering substantive emission reductions, with the potential to contribute towards renewable energy and emission reduction targets in Queensland. The approach used in this case study will be valuable to other regions exploring bioenergy generation from forest or other biomass residues.

scholarly journals Development of Low Carbon Cities: Assessment of Carbon Dioxide Emissions from Energy Facilities in Irkutsk City

2021 ◽  
pp. 9-16
Author(s):  
E. Maysyuk
Keyword(s):  
Carbon Dioxide ◽  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Carbon Dioxide Emissions ◽  
Current Trend ◽  
City Management ◽  
Low Carbon ◽  
Gas Emissions ◽  
Urban Energy ◽  
The City

Decrease in greenhouse gas emissions is a current trend in solving the climate change problems. The concept of low-carbon cities is extensively discussed nowadays. It aims to reduce greenhouse gas emissions through integrated mechanisms and measures, which comply with socio-economic development and city management. Since a considerable part of the population lives in cities, the utmost goal of the study is to analyze the situation with emissions of the main greenhouse gas, i.e., carbon dioxide, in the urban environment. The major sources of carbon dioxide emissions are stationary energy facilities of different capacities burning fuel. The paper considers the city of Irkutsk as an example of the populated area included in the study on low carbon cities under the auspices of the Social and Economic Commission for Asia and the Pacific of the UN - UNESCAP. The first stage of the studies involved assessing the current carbon dioxide emissions from energy facilities of the city through the calculation of carbon dioxide emissions from boiler houses and the city cogeneration plant for 1990. The findings revealed the potential of reducing carbon dioxide emissions from energy facilities in Irkutsk. The paper suggests the basic directions and measures to mitigate greenhouse gas emissions from the urban energy facilities.

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