Naslov
Thermodynamic analysis of a 500 MW ultra-supercritical pulverized coal power plant

Autori
Miškić, Bruno ; Blecich, Paolo

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), ostalo

Izvornik
XVIII INTERNATIONAL SCIENTIFIC CONGRESS MACHINES. TECHNOLOGIES. MATERIALS - PROCEEDINGS 2021 / Popov, Georgi ; Dikova, Tsanka - Borovets : Sofia : Scientific Technical Union of Mechanical Engineering "Industry-4.0", 2021, 55-58

Skup
XVIII International Scientific Congress: Machines. Technologies. Materials

Mjesto i datum
Borovec, Bugarska, 10.03.2021. - 13.03.2021

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Ultra-Supercritical Steam Cycle ; Pulverized Coal ; Net Efficiency Gain ; CO2 Emissions Reduction

Sažetak
This paper analyses the performance of a future planned 500 MW ultra-supercritical pulverized coal power plant. The steam cycle configuration comprises a single-stage reheat, four high pressure feedwater heaters, three low pressure feedwater heaters and the deaerator. The electricity generation unit consists of a high pressure turbine, an intermediate pressure turbine, two double-flow low pressure turbines and the electric generator. The analysis is carried out for live steam temperature of 600 °C and pressure of 300 bar while the reheat steam temperature is 610 °C and the pressure is 50 bar. The condenser pressure is 0.039 bar. The analysis revealed that the ultra-supercritical power plant achieves a gross thermal efficiency of 47.39% and a net thermal efficiency of 45.14%. The specific CO2 emissions per unit of generated electricity are 733.4 kg/MWh. Relatively to existing subcritical units, the analyzed ultra-supercritical power plant achieves a net efficiency gain of 9%-pts. and a CO2 emission reduction of around 20%.

Izvorni jezik
Engleski

Znanstvena područja
Strojarstvo

POVEZANOST RADA