Predictive equations for CO2 emission factors for coal combustion, their applicability in a thermal power plant and subsequent assessment of uncertainty in CO2 estimation

Fuel ◽  
2009 ◽  
Vol 88 (5) ◽  
pp. 792-798 ◽  
Author(s):  
Jahar Roy ◽  
Pinaki Sarkar ◽  
Subhashish Biswas ◽  
Ashim Choudhury
2020 ◽  
Vol 143 (8) ◽  
Author(s):  
Siamak Hoseinzadeh ◽  
P. Stephan Heyns

Abstract In this article, energy, exergy, and environmental (3E) analysis of a 400 MW thermal power plant is investigated. First, the components of the power plant are examined in terms of energy consumption, and subsequently the energy losses, exergy destruction, and exergetic efficiency are obtained. It is shown that the highest energy losses are in the closed feedwater heaters Nos. 1 and 5 and the boiler with amounts of 7.6 × 10 J/s and 6.5 × 107 J/s, respectively. The highest exergy destruction occurs in the boiler and amounts to 4.13 × 108 J/s. The highest exergetic efficiency is 0.98 and is associated with the closed feedwater heaters Nos. 4 and 8. It is observed that the exergetic efficiency and exergy destruction in the boiler are the primarily affected by changes in the environmental temperature. Furthermore, by increasing the main pressure in the turbine, the load on the power plant is increased, and increasing the condenser pressure reduces the load on the power plant. In an environmental analysis, the production of pollutants such as SO2 production and CO2 emission has been investigated.


2014 ◽  
Vol 14 ◽  
pp. 61-65
Author(s):  
A Minjigmaa ◽  
Ts Zolzaya ◽  
E Bayanjargal ◽  
B Davaabal ◽  
J Temuujin

  Coal combustion by products from ash pond of 3rdthermal power plant of Ulaanbaatar city have been collected in 2010 and 2013 years. The ash samples have been characterized by XRD, XRF and SEM-EDX methods in order to evaluate their chemical and mineralogical composition changes with disposed times. The mineralogical composition of ash varies with time though the chemical composition of the ashes were close each other. Possibly, inefficient operating condition of the TPS shows influence on the mineralogical composition.DOI: http://dx.doi.org/10.5564/mjc.v14i0.201Mongolian Journal of Chemistry 14 (40), 2013, p61-65


2015 ◽  
Vol 24 (3) ◽  
pp. 275-282 ◽  
Author(s):  
Aliya Askarova ◽  
Saltanat Bolegenova ◽  
Valeryi Maximov ◽  
Meruyert Beketayeva ◽  
Pavel Safarik

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