Simulation of PM10 and NOx Pollutants at a Coal-Fıred Thermal Power Plant Site Using The Gaussıan Plume Model in Freemat

Year 2024, EARLY VIEW, 1 - 1

Yusof-den Jamasalı , Şeref Turhan , Aybaba Hançerlioğulları , Aslı Kurnaz

https://doi.org/10.2339/politeknik.1430492

Abstract

Air quality is important to both human health and the environment. But as modernization is progressing further, the problem of air quality has become more alarming. Using machines in factories, motor vehicles in transportation, and power plants in energy generation are major contributors to air pollution. Most power plants, including thermal power plants that burn coal to produce electricity, emit harmful pollutants into the atmosphere during energy generation. Turkish government encourages the exploitation of coal reserves for electricity generation to lessen the importation of energy sources. Hence, Türkiye relies mainly on coal in its energy production. As of this writing, there are 55 thermal power plants operating in Türkiye. These power plants had an installed capacity of 21 GW at the end of 2019. Among these are the Afşin-Elbistan Thermal Power Plants (AETPPs) located in Kahramanmaraş province. In this study, PM10 and NOx pollutants at Afşin-Elbistan A Power Plant site located in Kahramanmaraş province of Türkiye were simulated using the Gaussian Plume Model in FreeMat software based on real data. The model input data included stack height, mass rate of emission of the pollutant, wind speed and direction, and atmospheric stability class. Dispersion profiles of PM10 and NOx pollutants were generated and the locations of maximum values of concentrations were identified. Results show that during winter, the highest maximum concentration of PM10 and NOx is 4865.79 µg/m3 and 699.7 µg/m3, respectively, with both located at x = 0.60 km in the scenario where 1.3-m/s wind is blowing from East. During summer, the highest maximum concentration of PM10 and NOx is 5380.77 µg/m3 and 767.87 µg/m3, respectively, with both located at x = 0.60 km in the scenario where 1.5-m/s wind is blowing from East-South-East. Furthermore, regions where PM10 and NOx concentrations exceed the national standard limit of 150 µg/m3 and 100 µg/m3, respectively, are always present and have been located in all the scenarios considered.

Keywords

Freemat, NOx pollutants, PM10 pollutants, dispersion, Gaussian Plume Model, Afşin

Freemat'ta Gauss Tüy Modeli Kullanılarak Kömür Termik Santrali Sahasında PM10 Ve NOx Kirleticilerinin Simülasyonu

Abstract

Hava kalitesi hem insan sağlığı hem de çevre açısından önemlidir. Son yıllardaki nüfus, kentleşme, endüstri, ekonomi ve teknolojideki hızlı büyüme hava kalitesi sorununu daha da endişe verici hâle geldi. Bu hızlı büyüme elektrik enerjisine olan talebi de büyük oranda artırdı. Bu enerji talebini karşılamak için kurulan fosil yakıtlı termik santraller, çevre ve hava kirliliğinin ana kaynaklarını oluşturmaktadır. Hâli hazırda, Türkiye'de 53 termik santral faaliyet göstermektedir. Bu çalışmada köür yakıtlı Afşin-Elbistan A Elektrik Santrali sahasındaki PM10 ve NOx (NO and NO2) kirleticileri, meteorolojik esas alarak FreeMat yazılımındaki Gaussian Plume Modeli kullanılarak simüle edildi. Model girdi verileri, etkin baca yüksekliği, kirleticinin kütlesel salım oranı, rüzgâr hızı ve yönü ve atmosferik kararlılık sınıfı gibi verileri içermektedir. PM10 ve NOx kirleticilerinin dağılım profilleri oluşturuldu ve azami derişim değerlerinin yerleri belirlendi. Kış ve yaz aylarında PM10 ve NOx’in azami derişim değerleri, sırasıyla 4865 µg/m3 ve 700 µg/m3 ve 5381 µg/m3 ve 768 µg/m3 olarak bulundu. Simülasyon sonuçları PM10 ve NOx derişimlerinin, ulusal standart sınır değerleri aştığın gösterdi.

Keywords

Freemat, NOx kirletici, PM10 kirletici, dağılım, Gauss Tüy Modeli, Afşin

Ethical Statement

The authors of this article declare that the materials and methods used in this study do not require ethical committee permission and/or legal-special permission.

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