학회 | 한국화학공학회 |
학술대회 | 2014년 가을 (10/22 ~ 10/24, 대전 DCC) |
권호 | 20권 2호, p.2491 |
발표분야 | 신진연구자 심포지엄 |
제목 | Design and Optimization of Low Carbon Emitting Combined Rankine Cycle |
초록 | A low carbon emitting combined Rankine cycle is proposed. In this cycle, the CO 2 generated from the coal combustion unit is captured through the post combustion capture process using mono-ethanol amine (MEA). This capture process consumes only 73% of the conventional capture plant operation energy by employing advanced process configuration. An organic Rankine cycle (ORC) utilizing both low-grade heat from a pulverized coal power plant and liquefied natural gas (LNG) cold exergy is also installed and optimized in order to minimize the power de-rate. The ORC uses R601-R23-R14 ternary mixture as its working fluid and is integrated with a steam cycle as a bottoming cycle. By utilizing the hot and cold exergy of low-pressure steam and LNG that were initially wasted, the ORC is able to generate additional power without consuming fossil fuel. The CO 2 captured from the capture process is liquefied by utilizing its latent heat as a heat source for the working fluid. 74.1 MW of additional electricity can be produced from ORC without consuming additional coal, thus both cycle efficiency and power de-rate resulted from CO 2 capture process installation are greatly improved. |
저자 | 이 웅 |
소속 | 서울대 |
키워드 | CCS ; ORC ; LNG ; Multi-Start Algorithm ; CO2 |
VOD | VOD 보기 |
원문파일 | 초록 보기 |