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강용혁(Yong Heack Kang),양윤섭(Yoon Sub Yang) 한국태양에너지학회 1998 한국태양에너지학회 논문집 Vol.18 No.2
국내 태양열 이용기술 개발 현황을 분석하기 위해 기술의 중요성과 태양열의 특징을 소개한 후에 국내의 기술동향을 요소기술인 태양열집열기의 온수기, 산업용 중고온시스템 및 태양에너지건물이용기술순으로 분석하였다. 분석결과 우리나라의 기술수준은 저온이용분야인 온수급탕으 경우 실용화 수준이며, 산업용인 중고온분야는 기초 및 소비시장 확대에 의한 가격의 저렴화 및 정부의 지원정책으로 태양열에너지의 이용을 증대시킬 수 있을 것이다.<br/> 이어서 국내 일사량자원과 보급현황을 살펴본 후 대체에너지 기술개발 기본계획상의 중장기 목표와 각분야별 기술의 개요 및 특징을 소개하였다.<br/> 국제환경에 대응하면서 국내 태양열 이용 및 보급 확대를 위해서는 기술개발을 통하여 얻어진 결과들이 사장되지 않도록 경쟁성 확보 시점까지 지속적인 수요창출을 위한 경제성 확보를 위해 추가적인 보완연구, 실용화연구 및 실증시범연구 등이 필요하다. In order to analyze the status of development of solar thermal technology in Korea, importance and characteristics of solar thermal technology is considered. That is, solar collector, solar hot water heater, solar industrial system and solar buildings is analyzed in the view of worldwide technology, And then, domestic insolation sources and sale amounts of solar system is introduced.<br/> In this paper, it is presented long-term objective in the basic plan of development new & rewable energy in Korea.<br/> As a result of analysis, the status of solar thermal technology in Korea is pactical use state in the field of low temperature use and application state in the field of mid-temperature use.
중국 1 MWe급 태양열발전시스템에 대한 기초 운전해석
강용혁(Kang, Yong-Heack),김종규(Kim, Jong-Kyu) 한국신재생에너지학회 2007 한국신재생에너지학회 학술대회논문집 Vol.2007 No.06
DAHAN, the first 1 MWe Solar Power Tower system locates north to Beijing where nearby The Great Wall is now under construction with cooperation between China and Korea. Results in predicting the preliminary performance of this central receiver system are presented in this paper. Operating cycles under some typical weather condition days are simulated and commented. These results can be used to assess the impact of alternative plant designs or operating strategies on annual energy production, with the final objective being to optimize the design of central receiver power plants. Two subsystems are considered in the system simulation: the solar field and the power block. Mathematic models are used to represent physical phenomena and relationships so that the characteristics of physical processes involving these phenomena can be predicted. Decisions regarding the best position for locating heliostats relative to the receiver and how high to place the receiver above the field constitute a multifaceted problem. Four different kinds of field layout are designed and analyzed by the use of ray tracing and mathematical simulation techniques to determine the overall optical performance {eta}_{field} and the spillage {eta}_{spill}.The power block including a Rankine cycle is analyzed by conventional energy balance methods.
강용혁(Kang, Yong-Heack),김진수(Kim, Jin-Soo),김종규(Kim, Jong-Kyu),이상남(Lee, Sang-Nam),유창균(Yu, Chang-Kyun),윤환기(Yoon, Hwan-Ki) 한국신재생에너지학회 2007 한국신재생에너지학회 학술대회논문집 Vol.2007 No.06
KIER have been developing high-temperature solar technology, especially the solar thermal power generation system, since the early of 1990s. In 1994, the first research on high temperature solar technology started with PTC technology. At the moment the most advanced 10kW dish system is under demonstration for 10kW solar thermal power generation. Test results showed about 19.2% solar to electricity average efficiency. Another research activities of KIER is hybrid power generation. For hybridization, solar and LFG(landfill gas) are used. Another hybrid solar system is with solar chemical reaction. In this system, power unit is gas turbine, and the heat content of fuel(like natual gas) is upgraded by solar energy through chemical reaction. The latest project on solar thermal power generation is for 1 MW power tower system. This is the Korea-China Joint project.
강용혁(Kang, Yong-Heack),김종규(Kim, Jong-Kyu),이현진(Lee, Hyun-Jin) 한국태양에너지학회 2011 한국태양에너지학회 학술대회논문집 Vol.2011 No.11
SolarPACES is an international cooperative network bringing together teams of national experts from around the world to focus on the development and marketing of concentrating solar power systems (also known as solar thermal power systems). It is one of a number of collaborative programs, called Implementing Agreements, managed underthe umbrella of the International Energy Agency to help find solutions to worldwide energy problems.Technology development is at the core of the work of Solar PACES. Member countries work together on activities aimed at solving the wide range of technical problems associated with commercialization of concentrating solar technology, including large-scale system tests and the development of advanced technologies, components, instrumentation, and systems analysis techniques. In addition to technology development, market development and building of awareness of the potential of concentrating solar technologies are key elements of the Solar PACES program.The Implementing Agreement specifies broad "Tasks," or thematic areas of work. SolarPACES currently has three ongoing tasks, focusing on concentrating solar electric power systems (TaskI), solar chemistry research (Task II), and solar technology and applications (Task III). An Operating Agent, nominated by the ExCo, is responsible for overseeing the work of each task. Each task maintains a detailed program of work that defines all task activities, including their objectives, participants, plans, and budgets. In addition to technical reports of the activities and their participants, accomplishments and progress are summarized in the SolarPACES annual report. Many SolarPACES activities involve close cooperation among member countries (either through sharing of task activitiesor,occasionally,cost-sharing), although some cooperation is limited to sharing of information and results with other participants. In thispaper, structure, works, and members of SolarPACES and Korean activies in the SolarPACES are introduced