Abstract
As the global warming becomes a serious environmental problem, studies of reducing CO2 emission in power generation area are in progress all over the world. One of the carbon capture and storage(CCS) technologies is known as oxy-fuel combustion power generation system. In the oxy-fuel combustion system, the exhaust gas is mainly composed of CO2 and H2O. Thus, high-purity CO2 can be obtained after a proper H2O removal process. In this paper, an oxy-fuel combustion cycle that recovers the waste heat of a high-temperature fuel cell is analyzed thermodynamically. Variations of characteristics of CO2 and H2O mixture which is extracted from the condenser and power consumption required to obtain highly-pure CO2 gas were examined according to the variation of the condensing pressure. The influence of the number of compression stages on the power consumption of the CO2 capture process was analyzed, and the overall system performance was also investigated.
| Original language | English |
|---|---|
| Pages (from-to) | 968-976 |
| Number of pages | 9 |
| Journal | Transactions of the Korean Society of Mechanical Engineers, B |
| Volume | 33 |
| Issue number | 12 |
| DOIs | |
| State | Published - Dec 2009 |
Keywords
- Condensing pressure
- Oxy-fuel combustion
- Power consumption
- Stage