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해상풍력 파일 굴착직경 결정을 위한 하부구조물 설계해석
이기옥(Gi-Ok Lee),선민영(Min-Young Sun) 한국기계가공학회 2019 한국기계가공학회지 Vol.18 No.4
With recent rapid increases in the power generation capacity of offshore wind power generators, reliable structural analysis of the large-scale infrastructure needed to install wind power generators at sea is required. Therefore, technology for heavy marine equipment such as barges and excavation equipment is needed. Under submarine conditions, rock drilling technology to install the substructure for offshore wind pile excavation is a very important factor in supporting a wind farm safely under dynamic loads over periods of at least 20 years. After investigating the marine environment and on-site ground excavation for the Saemangeum offshore wind farm, in this study we suggest.
김현일(Hyun-Il Kim),박경은(Kyung-Eun Park),강기환(Gi-Hwan Kang),유권종(Gwon-Jong Yu),이기옥(Gi-Ok Lee),서승직(Seung-Jik Suh) 대한전기학회 2010 대한전기학회 학술대회 논문집 Vol.2010 No.7
One of the most promising renewable energy technologies is photovoltaic(PV) power. PV systems are elegant means of producing on-site electricity from the sun without noise, pollution or any moving parts. However many PV systems are not installed in suitable part which is concerned about geometrical factor. It is generally recognized that the actual output of PV system in field is a function of orientation, tilt angle, irradiance, temperature, soiling and various system-related losses. Thus in this paper, based on the electrical characteristics of PV module, a simple model is proposed to predict the PV module performance for inexperienced engineer and architecture. Five factors are introduced in this model to account for the complex dependence of the PV module performance upon irradiance and temperature.