Pollution Impact of the Grozavesti Thermoelectric Power Plant on the Urban Agglomeration Bucharest

2018 ◽  
Vol 69 (2) ◽  
pp. 350-353
Author(s):  
Cristina Mihaela Balaceanu ◽  
Mihaela Andreea Mitiu ◽  
Maria Iuliana Marcus ◽  
Mariana Mincu
Keyword(s):  
Air Quality ◽  
Power Plant ◽  
Thermoelectric Power ◽  
Power Plants ◽  
Thermal Power ◽  
Gaussian Model ◽  
Ambient Air ◽  
Botanical Garden ◽  
Urban Agglomeration ◽  
Thermoelectric Power Plant

The purpose of this paper is the experimental analysis of the thermoelectric power plant Grozavesti impact on Bucharest urban agglomeration for year 2015. Experimental research is done for the NOx and SO2 pollutant for all seasons. The thermoelectric power plant Grozavesti is located near the Botanical Garden. Data provided by the industrial source are processed and constitute the input for the determination of the NOx and SO2 concentrations by using the OML (Operational Local Model) air quality dispersion Gaussian model. The results from modelling shows that the highest NOx and SO2 concentrations occur in the winter and autumn periods, due to unfavorable meteorological dispersion conditions and due to the operation of thermal power plant Grozavesti in the cold seasons. Thermoelectric power plants Grozavesti, operate on natural gas, because power plant have been refurbished. Generally, the results show that the industrial power plant represent the main contributions for pollution when the NOx and SO2 are exceed the limit value, according to Law 104/2011- ambient air quality, and this affect vegetation and human health.

Study on the Countermeasures of NOx Emission Reduction in Chengdu Economic Circle

2013 ◽  
Vol 726-731 ◽  
pp. 2324-2332
Author(s):  
Wen Yong Wang ◽  
Xiao Juan Ma
Keyword(s):  
Air Quality ◽  
Power Plant ◽  
Thermal Power Plant ◽  
Thermal Power ◽  
Ambient Air ◽  
Control Measures ◽  
Cement Plant ◽  
Air Quality Model ◽  
Quality Model ◽  
Mean Concentration

Based on the detailed survey on the source and volume of NOx emission over Chengdu Economic Circle, the third-generation air quality model CMAQ is adopted for simulating the density of NOx in the air over Chengdu Economic Circle. The result shows that the hourly concentration, daily mean concentration and annual mean concentration of NOx in air exceed the standard data, and the affected areas respectively account for 0.2%, 0.18% and 0.12% of the total area of the economic circle. Meanwhile, in accordance with the simulation calculation, The NOX emission of the vehicle exhaust, the thermal power plant and the cement plant are the major NOX concentration contribution sources in air, contribution rate is amounting to 39.13%, 21.41% and 15.34% respectively. Thus, three main measures to reduce the emission of NOx of Chengdu Economic Circle are proposed as follows: firstly, strengthen the management of vehicle and reduce the emission of NOx by the vehicle; secondly, manage the NOx of the industrial enterprise; flue gas denitrification equipment must be constructed in the thermal power plant and cement manufacturing enterprise, and the comprehensive denitration efficiency of the thermal power plant should be not less than 70% and the comprehensive denitration efficiency of the cement plant should not be less than 60%; thirdly, joint prevention and control measures should be implemented between the cities, so as to reduce the transport of NOx. With the application of the above measures, the emission reductions of NOx can be reduced to 55% of the existing volume, and the concentration of NOx in the air can meet with the Class II of national ambient air quality Standard.

scholarly journals Use of portable environmental sensors in the monitoring of the thermoelectric power plants operation

2020 ◽  
Vol 11 (6) ◽  
pp. 178-201
Author(s):  
Joaci Dos Santos Cerqueira ◽  
Helder Neves de Albuquerque ◽  
Mário Luiz Farias Cavalcanti ◽  
Francisco De Assis Salviano de Sousa
Keyword(s):  
Wind Speed ◽  
Power Plant ◽  
Thermoelectric Power ◽  
Power Plants ◽  
Dew Point ◽  
Environmental Sensors ◽  
Point Temperature ◽  
Dew Point Temperature ◽  
Thermoelectric Power Plants ◽  
Thermoelectric Power Plant

Thermoelectric power plants can directly cause environmental impacts with respect to emissions of atmospheric gases caused by combustion for operation, being the main agents: unburned hydrocarbons, carbon oxides, sulfur oxides, nitrogen oxides, volatile organic compounds and material particulate. Thus, this research aimed to measure and compare the instantaneous levels of the chemical compounds CO2, CO, SO2, noise, air temperature, relative humidity, dew point temperature, wind speed and luminescence in two peri-urban areas of the surrounding a thermoelectric power plant in the interior of Paraíba, Brazil. To this end, data were collected using environmental sensors (a Garmin Gpsmap 62sc GPS camera 5mp; a Canon powershot SX60HS 16.1MP LCD 3.0 semi-professional digital camera, 65x optical zoom; an ITMCO2-600 meter for measuring CO2 and CO; one ITMP-600 multifunctional meter for AVG/MAX/MIN/DIF measurement, temperature measurement, humidity measurement, sound level measurement, luminescence measurement and wind speed measurement; and a GasAlert Extreme SO2 Gas detector to measure concentrations of sulfur in the environment), from October 2015 to March 2017, during daytime, between 7:00am to 9:00am, with weekly frequency, with instantaneous sampling measurements being collected at the collection points, near the thermoelectric power plant (Area 1) and close to the BR/104 highway (Area 2). The results showed that the records through the environmental sensors were not significant among the areas surveyed regarding the values of CO, CO2, SO2, air temperature, relative humidity, dew point temperature and luminescence. Regarding the wind speed, the two areas showed little variation. The noise levels in Area 1, on the other hand, during the operation of the thermoelectric power plant in its fullness, there was an increase above the permitted level, according to current Brazilian regulations, causing damage to the health of the inhabitants of its surroundings, in addition to harming the fauna of the surrounding area. around, mainly, the birds that are driven away by the noise, and, consequently, reducing the diversity of the avifauna surrounding the Thermoelectric. Thus, the use of environmental sensors to monitor the air quality of this area is very important, thus serving as a comparative support for future studies, as well as establishing the genesis for an environmental database in this metropolitan region of Campina Grande/PB, Brazil.

Study on the Countermeasures of SO2 Emission Reduction in Chengdu Economic Circle

2013 ◽  
Vol 807-809 ◽  
pp. 1388-1396
Author(s):  
Wen Yong Wang ◽  
Bo Jun Ke ◽  
Gao Ping Fu
Keyword(s):  
Air Quality ◽  
Chemical Industry ◽  
Power Plants ◽  
Building Materials ◽  
Thermal Power ◽  
Ambient Air ◽  
Average Concentration ◽  
National Standard ◽  
Thermal Power Plants ◽  
Industrial Enterprises

Based on a detailed survey on the source and volume of SO2 emission over Chengdu economic circle, the third-generation air quality model CMAQ is adopted for simulating the concentration of SO2 in the air over Chengdu Economic Circle. The results show that the hourly average concentration, daily average concentration and annual average concentration of SO2 in air exceed the limit of national standard, and the affected areas respectively account for 0.12%, 0.18% and 0.03% of the total area of the economic circle. Meanwhile, according to the result of calculation, the SO2 emissions of thermal power plants, chemical industry, building materials plants and industrial area sources make the largest contribution to the SO2 concentration in the air, with ratios of 36.15%, 18.67%, 11.81% and 8.34% respectively. thus,main measures to reduce emissions of SO2 in Chengdu economic circle are proposed as follows: focusing on the control of the emissions of SO2 from industrial enterprises, especially in the thermal power plants, chemical industry, building materials plants as well as industrial boilers; joint prevention and control measures should be implemented between the cities, so as to reduce the interaction caused dy emissions of SO2. With the application of the above measures, the total SO2 emissions can be reduced by 50% and the concentration of SO2 in the air can meet with the Class II of national ambient air quality Standard.

scholarly journals Managemnet of revegetation of the slag and ash deposits of the Paroseni Thermoelectric Power Plant

2020 ◽  
Vol 305 ◽  
pp. 00045
Author(s):  
Andreea Cristina Tataru ◽  
Aurora Stanci ◽  
Dorin Tataru ◽  
Mihai Sorin Radu ◽  
Ioan Rus
Keyword(s):  
Environmental Management ◽  
Power Plant ◽  
Thermoelectric Power ◽  
Thermal Power Plant ◽  
Management System ◽  
Thermal Power ◽  
Environmental Management System ◽  
Thermoelectric Power Plant

As a result of the combustion of coal in the Paroseni Thermal Power Plant, large amounts of slag and ash waste are produced. Slag and ashes are deposited in the Caprisoara Valley slag and ash deposits. Upon completion of the deposit process, these landfills must be cleaned and reintroduced in natural circuit. An important step in the process of reintroduction in natural circuit of the deposits of slag and ashes is the implementation of some methods of revegetation. The chosen method must respect the main objectives of an environmental management system. In this paper we will present a method for managing the process of revegetation of the slag and ash deposits in order to reintroduce affected areas into the natural circuit.

Wet, Dry, and Hybrid Heat Rejection System Impacts on the Economic Performance of a Thermoelectric Power Plant Subjected to Varying Degrees of Water Constraint

2014 ◽  
Author(s):  
Thomas P. Carter ◽  
James W. Furlong ◽  
Sean P. Bushart ◽  
Jessica Shi
Keyword(s):  
Power Plant ◽  
Thermoelectric Power ◽  
Hybrid System ◽  
Power Plants ◽  
Cooling Tower ◽  
Power Production ◽  
Heat Rejection ◽  
Water Constraint ◽  
Interactive Dynamic ◽  
Thermoelectric Power Plant

The reduction of water consumption and use is emerging as a top priority for all types of thermoelectric power plants. In the United States, thermoelectric power production accounts for approximately 41% of freshwater withdrawals [1] and 3% of overall fresh water consumption. [2] On the basis of responses to a 2011 Electric Power Research Institute (EPRI) Request for Information [3], the feasibility study [4,5,6,7] of a Thermosyphon Cooler Hybrid System (TCHS) [8], proposed by Johnson Controls, was funded under EPRI’s Technology Innovation (TI) Water-Conservation Program. The objective of this project was to further develop the TCHS design concept for larger scale power plant applications and then perform a thorough technical and economic feasibility evaluation of the TSC Hybrid System and compare it to a variety of other competitive heat rejection systems. The Thermosyphon Cooler Hybrid System reduces power plant cooling tower evaporative water loss by pre-cooling the condenser loop water through a dry cooling process employing an energy efficient, naturally recirculating refrigerant loop. This paper details the results of a detailed feasibility study that was conducted to compare the cost and performance of the TCHS to a number of other potential wet, dry, and hybrid thermoelectric power plant heat rejection systems operating under varying degrees of water constraint. Installed system cost estimates were developed for the base all wet cooling tower systems, TCHS’s of varying sizes, air-cooled condenser (ACC) hybrid systems of varying sizes, and all dry ACC systems. Optimized all wet cooling tower and all dry ACC system configurations were developed for five different climatic locations. A comprehensive power plant simulation program that evaluated the fuel and water requirements of the power plants equipped with the different heat rejection systems across the weather conditions associated with all 8,760 hours of a typical meteorological year was developed and then an extensive array of simulations were run each location. The summary data were organized in a separate interactive dynamic system comparison summary program to allow users to gain further insight into the relationships between the various heat rejection systems and the sensitivity of the results to changes in key input assumptions. This paper details the data presented in the interactive dynamic system comparison summary program. This program displays the key metrics of the Annual Net Cost of Power Production, the Annual Net Power Plant Profit, the Annual Operating Profit, and the Internal Rate of Return as a function of the Percent Annual Water Savings Required for the various heat rejection systems at each of the five studied climatic locations studied. Key results and conclusions are presented.

scholarly journals Evaluation of radionuclide contamination of soil, coal ash and zeolitic materials from Figueira Thermoelectric Power Plant

2019 ◽  
Vol 7 (2A) ◽  
Author(s):  
Denise Alves Fungaro ◽  
Denise Alves Fungaro ◽  
Paulo Sergio Silva ◽  
Felipe Campello ◽  
Caio Silva Miranda ◽  
...  
Keyword(s):  
Power Plant ◽  
Thermoelectric Power ◽  
Power Plants ◽  
Bottom Ash ◽  
Natural Radionuclide ◽  
Specific Area ◽  
Average Concentration ◽  
Pulverized Coal ◽  
Gamma Ray Spectrometry ◽  
Thermoelectric Power Plant

Neutron activation analysis and gamma-ray spectrometry was used to determine 238U, 226Ra, 228Ra, 210Pb, 232Th and 40K contents in feed pulverized coal, bottom ash, fly ash from cyclone and baghouse filters, zeolites synthesized from the ashes and two different soil samples. All the samples used in the study was collected at Figueira thermoelectric power plant, located in the city of Figueira, Paraná State, which coal presents a significant amount of uranium concentration. The natural radionuclide concentrations in pulverized coal were 4216 Bq kg–1 for 238U, 180 Bq kg–1 for 226Ra, 27 Bq kg–1 for 228Ra, 28 Bq kg–1 for 232Th and 192 Bq kg–1 for 40K.The ashes fraction presented concentrations ranging from 683.5 to 1479 Bq kg–1 for 238U, from 484 to 1086 Bq kg–1 for 226Ra, from 291 to 1891 Bq kg–1 for 210Pb, from 67 to 111 Bq kg–1for 228Ra, from 80 to 87 Bq kg–1 for 232Th and from 489 to 718 Bq kg–1 for 40K. Similar ranges were observed for zeolites. The activity concentration of 238U was higher than worldwide average concentration for all samples. The concentration of the uranium series found in the ashes were lower than the values observed in similar studies carried out 10 years ago and under the limit adopted by the Brazilian guideline (CNEN-NN-4.01). Nevertheless, the concentrations of this specific area are higher than others coal mines and thermoelectric power plants in and out of Brazil, so it is advisable to evaluate the environmental impact of the installation.

scholarly journals Air quality monitoring and modeling near coal fired power plant

2019 ◽  
Vol 23 (6 Part B) ◽  
pp. 4055-4065
Author(s):  
Bogdana Vujic ◽  
Una Marceta ◽  
Francis Popescu ◽  
Bojana Tot
Keyword(s):  
Air Quality ◽  
Power Plant ◽  
Meteorological Data ◽  
Thermal Power ◽  
Ground Level ◽  
Ambient Air ◽  
Research Area ◽  
Quality Monitoring ◽  
Air Quality Monitoring ◽  
Research Period

In municipality of Ugljevik (Bosnia and Herzegovina), the coal-fired thermal power plant is located in the vicinity of the populated area. The ambient air quality monitoring within this area were not systematically performed in the previous period. This research was the first to include indicative measurement of pollutant concentration in air combined with modeling techniques for the purpose of a preliminary assessment of impact which the power plant has on air quality. Since coal, with the sulfur content of 3-6%, is used, as well as the fact that there was no flue gas desulphurization during the research period, this paper shows the results for SO2 as one of the most prominent indicators of pollution originating from the power plant. As a complement to the measurements, modeling of SO2 dispersion was carried out using ADMS5 software. The measurements indicated increased ground-level concentrations of SO2. Additionally, the modeling of SO2 dispersion with real meteorological data was carried out. The modeling confirmed high SO2 concentrations in research area. Also, it was found that the high episodic ground-level SO2 concentrations are the consequence of the terrain configuration and meteorological conditions.

Comparative Study Regarding Atmospheric SO2 Content in Rovinari and Turceni Areas

2017 ◽  
Vol 68 (10) ◽  
pp. 2248-2255
Author(s):  
Camelia Capatina ◽  
Daniela Cirtina
Keyword(s):  
Air Quality ◽  
Sulfur Dioxide ◽  
Nitrogen Oxides ◽  
Power Plants ◽  
Fossil Fuels ◽  
Thermal Power ◽  
Ambient Air ◽  
Cold Season ◽  
Thermal Power Plants ◽  
Limit Values

The goal of this research study is to compare the air quality of two urban locations from Targu-Jiu County namely Rovinari and Turceni. Measurements of SO2 content with automatic analysers were used as a criterion to asssess the air quality. Rovinari and Turceni areas were chosen for this study due to the fact that there are located two thermal power plants considered high stationary sources with an important contribution to regional and global pollution by sulfur dioxide, nitrogen oxides and dust. Sustainable development of fossil fuel power plants cannot be done without the use of technology to limit or eliminate environmental pollution. Studies regarding determination of SO2 content in the monitored areas were performed from January to December 2014. By interpreting the results obtained it can be concluded that the concentrations of sulfur dioxide in the ambient air are below the limit value set in legislation. This is mainly due to the developing of the programs for the progressive reduction of annual emissions of sulfur dioxide, nitrogen oxides and dust which was set up by operators of thermal power plants in order to comply with emission limit values. The high level of SO2 concentration in cold season is attributed to intensifying the burning of fossil fuels for household activities.

Nonlinear Trend Analysis of Mill Fan System Vibrations for Predictive Maintenance and Diagnostics

2012 ◽  
Vol 58 (4) ◽  
pp. 351-356
Author(s):  
Mincho B. Hadjiski ◽  
Lyubka A. Doukovska ◽  
Stefan L. Kojnov
Keyword(s):  
Power Plant ◽  
Trend Analysis ◽  
Thermal Power Plant ◽  
Power Plants ◽  
Thermal Power ◽  
Balkan Peninsula ◽  
Predictive Maintenance ◽  
Nonlinear Trend ◽  
The Subject ◽  
The Given

Abstract Present paper considers nonlinear trend analysis for diagnostics and predictive maintenance. The subject is a device from Maritsa East 2 thermal power plant a mill fan. The choice of the given power plant is not occasional. This is the largest thermal power plant on the Balkan Peninsula. Mill fans are main part of the fuel preparation in the coal fired power plants. The possibility to predict eventual damages or wear out without switching off the device is significant for providing faultless and reliable work avoiding the losses caused by planned maintenance. This paper addresses the needs of the Maritsa East 2 Complex aiming to improve the ecological parameters of the electro energy production process.

Sign in / Sign up

Export Citation Format

Share Document