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정한솔(Han Sol Jung),김민재(Minjae Kim),강용태(Yong Tae Kang) 대한설비공학회 2018 대한설비공학회 학술발표대회논문집 Vol.2018 No.6
To reduce the greenhouse gas emissions, CCS and CCU technologies are getting attention. CCS technology is a technique to capture and store carbon dioxide, which isolates a large amount of greenhouse gases from the source side such as a power plant. The CCS technology has a disadvantage in that a large amount of energy is required during the storage process. On the other hand, the CCU technology can be regarded as an environmental friendly technology that can convert carbon dioxide into high value products by converting the greenhouse gases into high value materials or environmentally friendly fuels. However, there is only a few quantitative assessments of CO₂ reduction potential for the CCU technology. Therefore, in this study, life cycle assessment (LCA) is conducted focusing on the photocatalytic technology among chemical CO₂ conversion technologies, which are estimated to have a higher potential to reduce GHG emission. The results shows that the photocatalytic conversion technology reduces CO₂ emission significantly during the conversion processes.
염화칼슘이 함침된 펄라이트를 이용한 화학축열에 대한 실험적 연구
정한솔(Han Sol Jung),김학성(Hak Seong Kim),황경엽(Kyung Yub Hwang),김광호(Kwang Ho Kim) 대한설비공학회 2015 설비공학 논문집 Vol.27 No.3
Thermochemical heat storage is a cutting-edge technology which can balance the energy usage between supplies and demands. Recent studies have suggested that thermochemical heat storage has significant advantages, compared to other storage methods such as latent heat storage or sensible heat storage. Nevertheless, ongoing research and development studies showed that the thermochemical heat storage has some serious problems. To bring the thermochemical heat storage method into market, we introduce experimental setup with composite material using perlite that supports calcium chloride sorbent. Also, to compare thermal properties with composite material, we used pure thermochemical material. Then, we found that the composite material has higher heat storage density by mass than pure calcium chloride. Moreover, it can be easily regenerated, which was impossible in the pure thermochemical materials.