지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2012.10
- 수록면
- 41 - 51 (11page)
이용수
초록· 키워드
오류제보하기
Heliostat field is the most important subsystem in the tower type solar thermal power plant since its optical performance affects the total system efficiency most significantly while the construction cost of it is the major part of total construction cost in such a power plant. Thus a well designed heliostat field to maximize the optical efficiency as well as to minimize the land usage is very important.
This work presents methodology, procedures and result of heliostat filed design for 200kW solar thermal power plant built recently in Daegu, Korea. A 2x2(m) rectangular shaped receiver located at 43(m) high and tilted ° toward heliostat field, 450 of heliostats of which the reflective surface is formed by 4 of 1x1(m) flat plate mirror facet, and the land area having about 140x120(m) size are used to form the heliostat field.
A procedure to deploy 450 heliostats in radial staggered nonblocking formation is developed. Also the procedures to compute the cosine effect, intercept ratio, blocking and shading ratio in the field are developed. Finally the heliostat filed is designed by finding the optimal radial distance and azimuthal spacing in radial staggered nonblocking formation such that the designed heliostat field optical efficiency could be maximized.
The designed heliostat field has 77.1% of annual average optical efficiency, which is obtained by annually averaging the optical efficiencies computed between the time of where sun elevation angle becomes 10° after sunrise and the time of where sun elevation angle becomes 10° before sunset in each day.
This work presents methodology, procedures and result of heliostat filed design for 200kW solar thermal power plant built recently in Daegu, Korea. A 2x2(m) rectangular shaped receiver located at 43(m) high and tilted ° toward heliostat field, 450 of heliostats of which the reflective surface is formed by 4 of 1x1(m) flat plate mirror facet, and the land area having about 140x120(m) size are used to form the heliostat field.
A procedure to deploy 450 heliostats in radial staggered nonblocking formation is developed. Also the procedures to compute the cosine effect, intercept ratio, blocking and shading ratio in the field are developed. Finally the heliostat filed is designed by finding the optimal radial distance and azimuthal spacing in radial staggered nonblocking formation such that the designed heliostat field optical efficiency could be maximized.
The designed heliostat field has 77.1% of annual average optical efficiency, which is obtained by annually averaging the optical efficiencies computed between the time of where sun elevation angle becomes 10° after sunrise and the time of where sun elevation angle becomes 10° before sunset in each day.
목차
Abstract
1. 서론
2. 헬리오스타트 필드 설계 초기 조건
3. 비막힘 구조의 헬리오스타트 필드 구성
4. 헬리오스타트 필드광학효율
5. 헬리오스타트 필드 설계
6. 결론
References
참고문헌 (11)
참고문헌 신청
1. [학술지(정기간행물)] - M. H. Park / 2010 / Introduction of Daegu City Gas Power Tower Project / The Magazine of Korean Solar Energy Society 9 (2) : 14 ~ 18
2. [학위논문] - X. Wei / 2009 / Study on the Heliostat Filed Design in the Solar Thermal Power Plant / 박사 / Chinese Academy of Sciences
3. [학술지(정기간행물)] - M. Sanchez / 2006 / Methodology for Generation of Heliostat Field Layout in Central Receiver Systems based on Yearly Normalized Energy Surfaces / Solar Energy 20 : 861 ~ 874
4. [학술지(정기간행물)] - Steve Schell / 2011 / Design and Evaluation of esolar's Heliostat Fields / Solar Energy 85 : 614 ~ 619
5. [학술지(정기간행물)] - 박영칠 / 2011 / 200kW 탑형 태양열발전시스템을 위한 Heliostat 반사면 구조 설계 / 한국태양에너지학회 논문집 31 (2) : 53 ~ 62
2. [학위논문] - X. Wei / 2009 / Study on the Heliostat Filed Design in the Solar Thermal Power Plant / 박사 / Chinese Academy of Sciences
3. [학술지(정기간행물)] - M. Sanchez / 2006 / Methodology for Generation of Heliostat Field Layout in Central Receiver Systems based on Yearly Normalized Energy Surfaces / Solar Energy 20 : 861 ~ 874
4. [학술지(정기간행물)] - Steve Schell / 2011 / Design and Evaluation of esolar's Heliostat Fields / Solar Energy 85 : 614 ~ 619
5. [학술지(정기간행물)] - 박영칠 / 2011 / 200kW 탑형 태양열발전시스템을 위한 Heliostat 반사면 구조 설계 / 한국태양에너지학회 논문집 31 (2) : 53 ~ 62
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