Effect of Advanced Steam Parameter-Based Coal-Fired Power Plants With Co2 Capture on the Indian Energy Scenario

• Published in: International journal of green energy Vol. 10; no. 10; pp. 1011 - 1025
• Main Authors: Karmakar, Sujit, Suresh, M. V. J. J, Kolar, Ajit Kumar
• Format: Journal Article
• Language: English
• Published: Philadelphia, PA Taylor & Francis 01-01-2013
• Subjects: Air pollution caused by fuel industries; Applied sciences; Capture; carbon dioxide; carbon markets; coal; developing countries; Energy; energy efficiency; Energy. Thermal use of fuels; Exact sciences and technology; greenhouse gas emissions; High ash coal; Installations for energy generation and conversion: thermal and electrical energy; Pollution reduction; power plants; Stack gas and industrial effluent processing; steam; Subcritical; Supercritical; Thermal power plants; Ultrasupercritical; India; Asia; Performance evaluation; Electric power plant; Supercritical; Ultrasupercritical; Thermal power plant; Coal power plant; CO2 sequestration; High ash coal; Subcritical; CO; Capture; Operating conditions
• ISSN: 1543-5083; 1543-5075; 1543-5083
• DOI: 10.1080/15435075.2012.729171

This study deals with the performance analysis of 500 MWe pulverized coal-fired power plants based on subcritical (SubC), supercritical (SupC), and ultrasupercritical (USC) steam parameters with postcombustion CO₂ capture using high ash (HA) Indian coal. The performance of power plants is evaluated in terms of plant energy efficiency and CO₂ avoided. Furthermore, the effect of an imported low ash (LA) coal on power plant performance parameters is also determined compared with the HA Indian coal. SupC and USC power plants result in an increase of about 0.8% and 6.4% points, respectively, in the plant energy efficiency compared with the SubC power plant. Consequently, a reduction of about 3% and 16.5% in CO₂ emission is observed for the same plants using both HA and LA coals that, in turn, will aid in significant gain in carbon credits for a developing country such as India. However, incorporation of postcombustion CO₂ capture unit in the proposed power plant configurations result in a significant drop of about 8%--13% points in the plant energy efficiency.