Spatial structure of pollution areas from combined heat and power plant (CHP) in Moscow

2021 ◽  
Vol 25 (6) ◽  
pp. 54-60
Author(s):  
V.R. Bityukova
Keyword(s):  
Spatial Structure ◽  
Maximum Concentration ◽  
Power Plants ◽  
Thermal Power ◽  
Capacity Utilization ◽  
Combined Heat And Power ◽  
Concentration Zone ◽  
Main Factors ◽  
Equipment Utilization ◽  
Pollution Area

The main tendencies in the nature air pollution in Moscow from thermal power plants are considered. Emission reductions from CHP high rates are determined by a change of the main factors balance from the fuel mix capacity utilization to upgrading facilities equipment utilization optimization. On the Ochakovskaya CHP example was shown that by reducing emissions the concentration of contaminants decreased. However, the spatial structure of the pollution area has remained. Here, the low concentration zone, which is associated with the wind shadow effect, characterized of high sources, is replaced by a zone of maximum concentration, that in dangerous wind conditions velocity increases to more than 6 times. In addition, there is one zone of pollutants accumulation, within which their concentration increases by more than 7 times. For more rapidly settling suspended particles, there is the maximum concentration near the source (0.8–1.5 km). For well-scattering nitrogen oxides, sulfur dioxide and carbon monoxide are reached the maximum concentration farther from the source of emissions (5.5–6.5 km).

MODELING THE TECHNOGENIC IMPACT OF CHPS ON THE ENVIRONMENT AND THE DEVELOPMENT OF ENGINEERING AND ENVIRONMENTAL PROTECTION MEASURES

2019 ◽  
Vol 12 (3) ◽  
pp. 27-34
Author(s):  
Алла Звягинцева ◽  
Alla Zvyaginceva ◽  
Светлана Сазонова ◽  
Svetlana Sazonova ◽  
В. Кульнева ◽  
...  
Keyword(s):  
Power Plants ◽  
Thermal Power ◽  
Coal Ash ◽  
Combined Heat And Power ◽  
Fuel Oil ◽  
Protection Measures ◽  
Technogenic Impact ◽  
Energy Facility ◽  
Negative Environmental Impact ◽  
Fuel Source

The waste generated during the operation of the thermal electric central, an energy facility, is considered. The analysis of atmospheric pollution by emissions of the Voronezh TPP-1, which uses coal as the main fuel, is carried out. A comparison is made with a thermal power plant using gas as a fuel source. The maximum allowable emission standards for pollutants generated during the use of coal are established and the excess of the MPC value by various types of emissions is shown: dioxide and nitric oxide; fuel oil and NO2 + SO2 ash; sulphurous anhydride and carbon monoxide; soot and coal ash. The size of the Sanitary Protection Zone of TPP-1 was determined. Measures aimed at reducing the negative environmental impact of such energy facilities as combined heat and power plants are proposed

ASSESSMENT OF THE PROCESS OF TECHNOGENIC POLLUTION OF THE ATMOSPHERE BY HEAT POWER FACILITIES AND THE DEVELOPMENT OF ENVIRONMENTAL ENGINEERING MEASURES

2019 ◽  
Vol 12 (3) ◽  
pp. 34-41
Author(s):  
Алла Звягинцева ◽  
Alla Zvyaginceva ◽  
Светлана Сазонова ◽  
Svetlana Sazonova ◽  
Николай Мозговой ◽  
...  
Keyword(s):  
Power Plants ◽  
Thermal Power ◽  
Combined Heat And Power ◽  
Environmental Engineering ◽  
Technogenic Pollution ◽  
Heat Power ◽  
Technogenic Impact ◽  
Production Processes ◽  
Engineering Measures ◽  
Environmental Measures

Technological processes at thermal power facilities - combined heat and power plants - are examined. The principle of operation of heat power facilities is considered on the example of the Voronezh TPP-1. The equipment is considered, with the help of the rational use of which the required level of ecological safety of the technogenic object can be achieved. Taking into account the peculiarities of the production processes at the Voronezh TPP-1, the most effective set of engineering, technical and environmental measures aimed at reducing the technogenic impact of the TPP on the surrounding city atmosphere is proposed

scholarly journals Transient Simulation of Geothermal Combined Heat and Power Generation for a Resilient Energetic and Economic Evaluation

Energies ◽  
2019 ◽  
Vol 12 (5) ◽  
pp. 894 ◽  
Author(s):  
Tim Eller ◽  
Florian Heberle ◽  
Dieter Brüggemann
Keyword(s):  
Power Plant ◽  
Power Plants ◽  
Thermal Power ◽  
Combined Heat And Power ◽  
Heat Extraction ◽  
Exergetic Efficiency ◽  
District Heating System ◽  
Transient Model ◽  
Additional Heat ◽  
Wide Range

Geothermal power plants based on the organic Rankine cycle (ORC) are used to convert the thermal power of brine into electricity. The efficiency and profitability of these power plants can be increased by an additional heat supply. The purpose of this study is to evaluate different combined heat and power (CHP) concepts for geothermal applications by thermodynamic and economic considerations. Therefore, a dynamic simulation model of a double-stage ORC is developed to perform annual return simulations. The transient ORC model is validated in a wide range by operational data of an existing power plant in the German Molasse Basin. A district heating system is considered and the corresponding heat load profiles are derived from a real geothermal driven heating network. For CHP, parallel and combined configurations are considered. The validation of the transient model is satisfying with a correlation coefficient of 0.99 between the simulation and real power plant data. The results show that additional heat extraction leads to a higher exergetic efficiency and a higher profitability. The exergetic efficiency and the profitability are increased by up to 7.9% and 16.1%, respectively. The combined concept shows a slightly better performance than the parallel configuration. The efficiency can be increased by up to 1.3%. In economic terms, for CHP the annual return can be increased by at least 2,500,000 €. In principle, the dynamic model shows reliable results for high power gradients. This enables an investigation of geothermal ORC models for the reserve market in future works.

scholarly journals Usage of biomass CHP for balancing of power grid in Ukraine

2019 ◽  
Vol 112 ◽  
pp. 02005
Author(s):  
Oleksii Epik ◽  
Vitalii Zubenko
Keyword(s):  
Power Plant ◽  
Gas Turbine ◽  
Thermal Power Plant ◽  
Power Plants ◽  
Power Grid ◽  
Thermal Power ◽  
Combined Heat And Power ◽  
Electricity Supply ◽  
Levelized Cost Of Electricity ◽  
Levelized Cost

The article contains the first considerations of the problematic of Ukrainian grid balancing issues raised by a rapid increase of RES share in total electricity supply. The provision of balancing electricity with accent on biomass combined heat and power plants (CHP) usage is considered. Three technical concepts are proposed for engaging of existing and planned biomass CHP into balancing operation primary operating in baseload regimes, namely – greenfield biomass thermal power plant (TPP) and CHP working primary in baseload regimes and provide balancing electricity when needed (with and without steam accumulation). It is shown that there are no principle technical limitations for biomass CHP/TPP usage for grid balancing. The levelized cost of electricity (LCOE) of balancing electricity for proposed concepts are calculated and compared with the reference technology proposed by the national grid operator (gas-piston engines and/or gas turbine). According to the calculations performed the LCOE (EUR/MWh) of balancing electricity could be 77-88 EUR/MWh for biomass CHP primary operating in baseload and 216 EUR/MWh for greenfield biomass TPP against 206 EUR/MWh for gas-piston/gas-turbine for applied assumptions, prices and tariffs.

By-production of electricity and particulates: efficiency of Indian thermal power plants revisited

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Debarun Sengupta ◽  
Deep Mukherjee
Keyword(s):  
Regression Analysis ◽  
Power Plants ◽  
Thermal Power ◽  
Capacity Utilization ◽  
Thermal Power Plants ◽  
State Governments ◽  
Content Type ◽  
Indian Coal ◽  
Second Stage ◽  
Using Data

Purpose This paper studies the efficiency of Indian coal-fired thermal power plants (CTPPs) in by-production of electricity and particulates also known as Suspended Particulate Matter (SPM). Design/methodology/approach A non-radial directional distance function is optimized using data envelopment analysis to enumerate the overall inefficiency of CTPPs and its components in recent times. Further, second-stage regression analysis is conducted to identify factors that affect the inefficiency of plants. Findings The low inefficiency score for electricity generation suggests that most CTPPs operate close to the good output frontier. A high degree of emissions inefficiency is a challenge for Indian CTPPs. Ever-rising coal use inefficiency is a hindrance to control SPM emissions. The second stage regression analysis concludes that factors like ownership and capacity utilization play vital roles in determining a plant’s inefficiency level. Privately owned CTPPs have performed better in terms of technical inefficiency and emission inefficiency than plants owned by Central and State governments. Originality/value To the best of the authors’ knowledge, this study is one of the few published works that benchmark the productive and environmental performance of Indian CTPPs.

scholarly journals Features of the Multi-Criteria Optimization Mathematical Model of the Thermal and Electrical Loads Distribution at a Combined Heat and Power Plant with a Mixed Equipment Composition

2021 ◽  
Vol 2090 (1) ◽  
pp. 012012
Author(s):  
E K Arakelyan ◽  
A V Andryushin ◽  
S V Mezin ◽  
A A Kosoy
Keyword(s):  
Mathematical Model ◽  
Power Plant ◽  
Thermal Power Plant ◽  
Power Plants ◽  
Thermal Power ◽  
Combined Heat And Power ◽  
Mixed Composition ◽  
Environmental Friendliness ◽  
Electrical Loads ◽  
The Mathematical Model

Abstract The features of the mathematical model of multi-criteria optimization of the distribution of current thermal and electrical loads at a combined heat and power plant with a mixed composition of equipment based on traditional heating units and a heating CCGT are considered. The previously proposed mathematical apparatus for solving the problem of multi-criteria optimization at a thermal power plant is analyzed. It is shown that with a mixed composition of equipment, along with the criteria of efficiency and environmental friendliness, it is also necessary to take into account the factors of reliability and mobility (maneuverability). The substantiation of the choice of reliability and mobility criteria for optimizing the operation modes of a thermal power plant is given. Approaches to solving the multi-criteria task are considered. The description of the features of the algorithm for solving the optimization problem is given in relation to thermal power plants with a mixed composition of equipment, including heating turbines of the T type and PGU.

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