• Korean Chemical Engineering Research
• /
• v.53 no.5
• /
• pp.545-552
• /
• 2015

Process modeling and simulation is a powerful methodology to quantitatively predict the change of process variables when operating and design conditions are changed. In this study, considering drawbacks of currently used process simulator for combined cycle plants, we developed process modeling system equipped with an ease of use and flexibility for model development. For this purpose, the analysis of combined cycle processes was carried out and consequently, mathematical models and libraries were developed. Furthermore, in view of the fact that the level of the abstraction of process models depends on the purpose of simulation as well as the available data, simple and rigorous models were also developed for some important units. In use of reference combined plant, we executed process simulation using the developed modeling system and the comparison was made between the results of simulation and the reference data. Less than 1% marginal error was identified and we concluded that the modeling system can be applied for commercial combined cycle processes.

• Proceedings of the Korean Vacuum Society Conference
• /
• 2009.08a
• /
• pp.311-311
• /
• 2009

• Proceedings of the Korean Institute of Surface Engineering Conference
• /
• 2009.05a
• /
• pp.268-268
• /
• 2009

고밀도 유도 결합 플라즈마를 이용한 연료 전기 분리판용 질화 장치를 플라즈마를 모사할 수 있는 3차원 전산 유체 역학 프로그램인 CFD-ACE+를 이용하여 해석하였따. 내장형 안테나 타입의 유도 결합 플라즈마의 전자 온도, 밀도 균일성, 가스 유동, 얇은 기판이 촘촘히 적재 되었을 경우의 플라즈마 특성을 모사하였다.

• Proceedings of the Korean Society for Noise and Vibration Engineering Conference
• /
• 2013.04a
• /
• pp.174-175
• /
• 2013

• Proceedings of the Korean Society for Noise and Vibration Engineering Conference
• /
• 2013.04a
• /
• pp.676-677
• /
• 2013

• Proceedings of the Korean Society for Noise and Vibration Engineering Conference
• /
• 2012.10a
• /
• pp.500-501
• /
• 2012

• Proceedings of the Korean Vacuum Society Conference
• /
• 2003.08a
• /
• pp.55-55
• /
• 2003

• Proceedings of the Korean Institute of Surface Engineering Conference
• /
• 2008.11a
• /
• pp.88-89
• /
• 2008

TiN ICP-CVD 공정에서의 펄스 직류인가는 동일한 전력공급 하에 보다 효과적이고 우수한성능의 증착능을 나타낸다. 이에 따른 공적 최적화를 위해 전산모사 프로그램을 이용하여 전자의 에너지 분포 모사가 공정에 미치는 영향을 조사하였다.

• Proceedings of the Korean Society for Noise and Vibration Engineering Conference
• /
• 2013.10a
• /
• pp.168-169
• /
• 2013

• 한국지구물리탐사학회:학술대회논문집
• /
• 2008.10a
• /
• pp.141-144
• /
• 2008

Geological storage of carbon dioxide has been studying in advanced countries to reduce greenhouse gases and a pilot site for geological storage is also in operation in the deep saline aquifer. Seismic wave and electrical resistivity tomography methods are applicable to monitoring techniques and they are used to evaluate the distribution range and behavior of the carbon dioxide injected in the porous sandstone formations. This paper describes the construction of an experimental apparatus which consists of a high pressure vessel and a measurement system for geological storage of carbon dioxide. The experiment apparatus will be used to measure seismic velocities and resistivities during the injection of carbon dioxide at the supercritical phase in the porous sandstones.