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암모니아수용액을 이용한 SO<sub>X</sub>-NO<sub>X</sub> 동시 흡수에 관한 연구
김재강,이주열,박병현,최진식,Kim, Jae-Gang,Lee, Ju-Yeol,Park, Byung-Hyun,Choi, Jin-Sik 한국응용과학기술학회 2015 한국응용과학기술학회지 Vol.32 No.3
The experiment was performed using the cleaning precipitator To investigate the absorption efficiency of the $SO_X/NO_X$ of the aqueous ammonia solution. Concentration of the cleaning liquid is 0.1, 0.5, and 1.0% with increasing absorption efficiency has improved. However, the reaction shown only a difference in time. Absorption efficiency has improved in accordance with the gas residence time. When the direction of the same gas and the cleaning liquid is determined that there is the effect of increasing the residence time. The relative impact of $SO_X$ and $NO_X$ is this likely to react slower than $SO_X/NO_X$. The yield is determined to require adjustment of the cleaning dust collector according to the concentration of the next gas.
암모니아수용액을 이용한 SOx-NOx 동시 흡수에 관한 연구
김재강(Jae-Gang Kim),이주열(Ju-Yeol Lee),박병현(Byung-Hyun Park),최진식(Jin-Sik Choi) 한국유화학회 2015 한국응용과학기술학회지 Vol.32 No.3
The experiment was performed using the cleaning precipitator To investigate the absorption efficiency of the SOX/NOX of the aqueous ammonia solution. Concentration of the cleaning liquid is 0.1, 0.5, and 1.0% with increasing absorption efficiency has improved. However, the reaction shown only a difference in time. Absorption efficiency has improved in accordance with the gas residence time. When the direction of the same gas and the cleaning liquid is determined that there is the effect of increasing the residence time. The relative impact of SOX and NOX is this likely to react slower than SOX/NOX. The yield is determined to require adjustment of the cleaning dust collector according to the concentration of the next gas.
Post Normal Shock Flow Analysis of Nitrogen
Jae Gang Kim(김재강) 한국항공우주학회 2015 한국항공우주학회 학술발표회 논문집 Vol.2015 No.11
One dimensional post-normal shock flow calculations are carried out using state-of-the-art thermochemical nonequilibrium models. Two-temperature, four-temperature, and electronic master equation coupling models are adopted in the present work. In the four-temperature model, the rotational nonequilibrium is described by Parker and modified Park models. In the electronic master equation coupling model, recently evaluated electron and heavy-particle impacts and radiative transition cross sections are employed in constructing the system of electronic master equations. In analyzing the shock-tube experiments, the results calculated by the state-of-the-art thermochemical nonequilibrium models are compared with existing shock-tube experimental data. The four-temperature and electronic master equation coupling models with rotational nonequilibrium accurately reproduce the measured nonequilibrium temperatures.
김재강(Jae-Gang Kim),권오준(Oh-Joon Kwon),이균호(Kyun-Ho Lee),김수겸(Su-Kyum Kim),유명종(Myoung-Jong Yu) 한국항공우주학회 2008 韓國航空宇宙學會誌 Vol.36 No.11
인공위성의 추력기에서 발생되는 플룸과 기저면의 상호 작용에 관한 연구를 직접모사법을 사용하여 실시하였다. 질소와 수소 분자의 충돌에 의한 회전-병진 에너지의 교환을 정확하게 모사하기 위하여 최근에 연구 되어진 질소와 수소 분자의 회전 에너지 이완 모델을 사용하였다. 추력기 플룸과 기저면의 상호 작용 해석을 위하여 플룸 분자들의 수밀도 분포와 회전, 병진 온도 분포, 열전달량, 압력 등에 대하여 다양한 운영 조건에 맞추어 해석을 실시하였다. 그 결과 기저면에서는 질소 분자보다 수소 분자의 분포가 매우 큰 것과, 분포하는 대부분의 수소 분자가 회전 에너지에 대해 비평형 상태로 분포 하는 것을 확인 하였다. 이는 수소 분자의 정확한 회전 에너지 이완 모델의 필요성을 보여주고 있는 결과이며, 본 연구의 경우 가장 최근의 수소의 회전 에너지에 관련된 모델을 사용함으로써 플룸과 기저면의 상호 작용 해석에 대한 정확도를 증진 시켰다. The interaction between thrust plume and satellite base region was investigated by using direct simulate Monte-Carlo calculations. For the accurate simulation of N₂ and H₂ collisions and rotation-translation transition, a variable soft-sphere model and a recent rotational relaxation model of N₂ and H₂ were used. For the investigation of the interaction between thrust plume and base region, the number density distribution for each species, translational and rotational temperature distributions, heat flux, and pressure were examined by direct simulation of Monte-Carlo calculations. It was found that most of the surface properties are affected by H₂ collisions and a strong non-equilibrium state is observed at the base region. It was demonstrated that all accurate model is needed to simulate H₂ collisions and the rotation-translation transition. The results by the present calculation are more accurate than previous direct simulation Monte-Carlo calculations because more accurate rotational relaxation models were used in simulating the inelastic collisions.
김재강(Jae-Gang Kim),이주열(Ju-Yeol Lee),박병현(Byung Hyun Park),최진식(Jin-Sik Choi) 한국유화학회 2015 한국응용과학기술학회지 Vol.32 No.2
The experiment was performed for in order to remove NOx which is generated in the Ship s engine. it was performed test in order to remove NOx which is generated in the Ship s engine. It was used as the oxidizing agent sodium chlorite. Use the oxidizer is nitrogen monoxide was oxidized to nitrogen dioxide. and was tested pH adjustment to increase the efficiency of oxidizing. An aqueous solution of sodium hydroxide was used for the nitrogen dioxide absorbent. Low concentration of the solution, it showed a high efficiency. improves the absorption efficiency by add additives.