• Title/Summary/Keyword: Solar Thermal Generation

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Solar Thermal Hybrid Power Generation: technology overview and state of the art in Korea (태양열 복합발전기술의 개요와 국내 연구개발 현황)

  • Kim Jin-Soo;Kang Yong-Heack;Lee Sang-Nam;Yoon Hwan-Ki;Yu Chang-Kyun
    • 한국신재생에너지학회:학술대회논문집
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    • 2005.06a
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    • pp.412-415
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    • 2005
  • Solar thermal power generation is one of promising and well-proven ways to convert solar energy to electricity. Though it requires high initial cost for system construction and continuous efforts for maintainment. it is more positive in terms of efficiency than other solar power generation technologies. Moreover, solar thermal power generation allows additional benefits of cheap thermal storage and easy hybridization with other fossil fuel-driven power generation. Owing to these benefits, large scale solar thermal power generation technology is expected to be competitive to other commercial technologies in the near future. In this paper an overview on the solar thermal hybrid power generation technology and the state of the art in Korea were briefly introduced.

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Design and Construction Experiences of Solar Thermal Chemical Reaction Hybrid Power Generation (태양열 화학반응 복합발전시스템의 설계 및 시공 사례)

  • Lee, Sang-Nam;Kang, Yong-Heack;Kim, Jin-Soo;Yoon, Hwan-Ki;Yu, Chang-Kyun;Kim, Jong-Kyu
    • 한국신재생에너지학회:학술대회논문집
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    • 2007.06a
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    • pp.688-692
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    • 2007
  • Solar thermal power generation allows additional benefits of cheap thermal storage and easy hybridization with other fossil fuel-driven power generation. KIER has been performing the project for solar thermal chemical reaction hybrid power generation. The project is to build and operate the first solar thermal chemical reaction hybrid power generation system in Korea. For concentrating solar thermal energy $m^2$ dish type concentrator was adapted and a heliostat is installed for reflecting horizontal insolation to the dish concentrator. At the moment building the dish concentrator including mirror and heliostat with sun tracking system was completed and it's performance are being closely evaluated. This paper will introduce some detailed designs and construction procedures which we have experienced so far.

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Development of High Efficiency Solar Power Generation with Two-axis Tracking Control (양축 추적제어에 의한 고효율 태양열 발전시스템의 개발)

  • Ko, Jae-Sub;Chung, Dong-Hwa
    • The Transactions of The Korean Institute of Electrical Engineers
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    • v.60 no.9
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    • pp.1721-1726
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    • 2011
  • Recently, interest in renewable energy is increased due to exhaustion of fossil fuel and environmental pollution all over the world, therefore the solar power generation using solar energy is many researched. The solar power generation is required solar tracking control and high concentration solar thermal collector because generation performance is depended on concentrator efficiency. This paper proposes high efficiency solar power generation with two-axis tracking control using dish-type solar thermal collector that has excellent thermal collector performance and tracking algorithm that can be accurately tracked solar position. This paper proves validity through analysis with accuracy of tracking algorithm and generating efficiency.

Design and Development Trends of Solar Thermal Power Generation in Korea (국내의 태양열발전 기술개발 동향 및 설계)

  • Kang, Yong-Heack;Kim, Jin-Soo;Kim, Jong-Kyu;Lee, Sang-Nam;Yu, Chang-Kyun;Yoon, Hwan-Ki
    • 한국신재생에너지학회:학술대회논문집
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    • 2007.06a
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    • pp.658-661
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    • 2007
  • 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.

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Solar Thermal Hybrid Power Generation;technology review and system design (태양열복합발전 기술개발 동향 및 설계)

  • Kim, Jin-Soo;Kang, Yong-Heack;Lee, Sang-Nam;Yun, Hwan-Ki;Yu, Chang-Kyun;Kim, Jong-Kyu
    • 한국신재생에너지학회:학술대회논문집
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    • 2007.06a
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    • pp.684-687
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    • 2007
  • Research on the solar thermal hybrid power generation technology which uses solar thermal chemical reaction has been carried out in KIER, The research covers development of solar concentration system and solar reactor for methane steam reforming reaction. This paper introduces a brief review and prospects of oversea's researches in similar areas and KIER's research progresses up to now.

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Design and Construction Experiences of 10kWe Dish-type Solar Thermal Power Generation System (Dish형 집광장치 이용 10kWe급 태양열 발전시스템 설계 및 시공 사례)

  • Lee, Sang-Nam;Kang, Yong-Heack;Jo, Dok-Ki;Yu, Chang-Kyun;Yoon, Hwan-Ki;Kim, Jin-Soo
    • 한국신재생에너지학회:학술대회논문집
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    • 2005.11a
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    • pp.684-687
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    • 2005
  • KIER has been running a demonstration project for 10kWe solar thermal power generation. the project is to build and operate the first solar thermal power generation system in Korea. For concentrating solar thermal energy $40m^2$ dish type concentrator was adapted and a stirling engine is going to be integrated to the system for power production. At the moment building the dish concentrator including mirror and sun tracking system was completed and it's performance are being closely evaluated. This paper will introduce some detailed designs and construction procedures which we have experienced so far.

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Thermal Test of High-Temperature Solar Concentrating System for Hybrid Power Generation (복합발전용 고온 집광시스템의 집열 특성 분석)

  • Kim, Jin-Soo;Lee, Sang-Nam;Kang, Yong-Heack;Yun, Hwan-Ki;Yun, Chang-Kyun;Kim, Jong-Kyu
    • 한국신재생에너지학회:학술대회논문집
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    • 2006.06a
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    • pp.580-583
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    • 2006
  • A small-scale solar concentrating system was developed and demonstrated for supplying process heat required in solar thermo chemical reaction. The concentration system consists of a heliostat equipped with a solar tracking device and a dish concentrator. From the initial thermal test of the concentrating system it was found that the system works very well with around 500-600 concentration ratio capable of supplying about 3kW therml energy to the reactor. Once the concentration system was turned on, the reactor temperature rapidly increased over $1,000^{\circ}C$ and could be maintained high enough for solar chemical reaction.

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Solar power and desalination plant for copper industry: improvised techniques

  • Sankar, D.;Deepa, N.;Rajagopal, S.;Karthik, K.M.
    • Advances in Energy Research
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    • v.3 no.1
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    • pp.59-70
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    • 2015
  • In India, continuous production of electricity and sweet/potable water from Solar power and desalination plant plays a major role in the industries. Particularly in Copper industry, Solar power adopts Solar field collector combined with thermal storage system and steam Boiler, Turbine & Generator (BTG) for electricity production and desalination plant adopts Reverse osmosis (RO) for sweet/potable water production which cannot be used for long hours of power generation and consistency of energy supply for industrial processes and power generation cannot be ensured. This paper presents an overview of enhanced technology for Solar power and Desalination plant for Copper industry making it continuous production of electricity and sweet/potable water. The conventional technology can be replaced with this proposed technique in the existing and upcoming industries.

Technical Trend of Receiver for Solar Power Tower (타워용 태양열발전 시스템 흡수기 기술동향)

  • Kim, Jong-Kyu;Kim, Jin-Soo;Lee, Sang-Nam;Kang, Yong-Heack
    • 한국신재생에너지학회:학술대회논문집
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    • 2008.05a
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    • pp.161-164
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    • 2008
  • For the development of solar thermal power tower plant from the early 80' to today, various kinds of receiver have been tested and evaluated. Most of 1st generation receiver used water/steam as a working fluid to operate steam turbine and now the first commercial solar power tower PS-10 also makes saturated steam. However, to increase thermal efficiency of storage system and to obtain practical use of solar energy, molten salt system have been used from THEMIS project in France at 1984. The Solar Tres plant of 17 MWe power generation will be constructed in Spain and have plan to operate 24 hours in summer. The air volumetric receiver system can be integrated with combined cycle of gas turbine and HRSG and also with steam turbine easily. Therefore, related researches to develop higher efficient solar power tower plant and to operate with stable are widely performed in the world.

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Performance Analysis of the BIPV/T system by the performance Test- Part1. PV efficiency (실험을 통한 BIPV/T 시스템 성능분석-1. PV 발전효율)

  • Lee, Hyeon-Ju;Jo, Hye-Jin
    • 한국태양에너지학회:학술대회논문집
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    • 2012.03a
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    • pp.445-450
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    • 2012
  • BIPV/T (Building Intergrated PhotoVoltaic/Thermal) is combined system produces electricity and thermal energy. The heat from PV modules should be removed for better electrical performance, and can be converted into useful thermal energy. The efficiency of the PV system's performance will raise by the system removes heat from the PV. The test system is installed to top floor of the experimental house in the KEPCO Research Institute. The planned experiment is following. (1) Supplying heat energy to top floor. (2) Supplying heat and cool energy to thermal storage in the bottom of the top floor. (3) Supplying heat energy to EHP for improved performance. The experimental performance is executed from 13th February to 13th March, 2012. The solar generation of electricity is 4.04kWh under the horizontal solar radiation is $1000W/m^2$ and the air temperature is $25^{\circ}C$.

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