• Transactions of the Korean hydrogen and new energy society
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• v.33 no.5
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• pp.499-506
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• 2022

This study proposes kinetic parameters of Ru catalyst for steam methane reforming (SMR). First, extensive experiments are performed under different SMR conditions to evaluate performance of the catalyst in SMR. Second, a kinetic model is designed and developed for parameter estimation and validation using gPROMS. Finally, estimated parameters are fitted to the kinetic model and then, the model results are compared with the experimental data. The model results are in a good agreement with the experimental data.

• Journal of Wind Energy
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• v.14 no.4
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• pp.29-42
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• 2023

In this study, research and empirical cases of floating offshore wind turbine systems with a tension-leg platform are investigated, and hydrodynamic and structural characteristics according to platform shapes and characteristics during transportation and installation are confirmed. Most platforms are composed of pontoons or corner columns, and these are mainly located below the waterline to minimize the impact of breaking waves and supplement the lack of buoyancy of the center column. These pontoons and corner columns are designed with a simple shape to reduce manufacturing and assembly costs, and some platforms additionally have reinforcements such as braces to improve structural strength. Most of the systems are assembled in the yard and then moved by tugboat and installed, and some platforms have been developed with a dedicated barge for simultaneous assembly, transportation and installation. In this study, we intend to secure the basic data necessary for the design, transportation, and installation procedures of floating offshore wind turbine systems with a tension-leg platform.

• Journal of KIISE
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• v.42 no.1
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• pp.130-137
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• 2015

With the rapid increase of energy consumption and environmental problems, the need for green techniques is increasing. Network coding can provide a solution by reducing unnecessary data transmission and by estimating traffic patterns. In addition, it can amplify the synergy with the cognitive radio network (CR) since the CR has recognition and optimal decision functionalities. In this paper, we propose a network coding based green cognitive radio network. With the simulations, we show that the proposed scheme is up to 25% better than the previous work.

• Korea Petroleum Association Journal
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• s.281
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• pp.31-34
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• 2011

• Korea Petroleum Association Journal
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• s.281
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• pp.23-26
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• 2011

• Air Cleaning Technology
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• v.25 no.1
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• pp.15-31
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• 2012

• The Magazine for Energy Service Companies
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• s.81
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• pp.74-75
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• 2013

• Korea Journal of Geothermal Energy
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• v.7 no.4
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• pp.39-44
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• 2011

• Korea Journal of Geothermal Energy
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• v.5 no.1
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• pp.40-43
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• 2009

• 주택과사람들
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• s.224
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• pp.30-30
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• 2008

웰빙, 로하스에 이어 이제는 '친환경'이다. 재활용을 이용한 적극적인 방법부터 에너지 절약이라는 확장된 방법론까지, 2009년에는 환경을 생각한 기업의 윤리적 행보가 줄을 잇는다.