태양열 이용 전화국 기본 설계연구

한국태양에너지학회(Korean Solar Energy Society) 한국태양에너지학회 1992 한국태양에너지학회 논문집 Vol.12 No.1

본 연구의 진행은 자연형 태양열 시스템의 검토, 그리고 태양열 냉?난방시스템 분류 및 실태조사, 끝으로 태양열이용전화국 기본설계도면 제시의 순으로 하였다. 그런데, 태양열이용전화국 기본설계는 능률적 업무 흐름에 따른 공간계획 및 시설계획을 수립하여, 그리고 무엇보다도 에너지를 절약함과 동시에 대체에너지중 하나인 태양열을 보다 적극적으로 이용한 건물이 되도록 계획하였다. The present study has been carried out to investigate various passive solar technologies for their possible application to telecommunications office buildings. HVAC systems utilizing the solar energy are analyzed in this regard to elicit the most feasible design. The proposed design is unique, for it has been devised to promote the working spirit with an efficient space planning as well.

Specific Energy and Specific Power Relationship among Energy Devices

Sang C. Lee(이상철),Osung Kwon(권오성),A. K. Sahu,Sam Park,D. H. Lee(이동하) 한국태양에너지학회 2013 한국태양에너지학회 학술대회논문집 Vol.2013 No.4

The main function of energy devices is to generate power and store energy. The typical storage devices are battery and capacitor; generation devices are internal combution engine(ICE), gas turbine, and fuel cell. Every kinds of energy devices can be compared together in the Ragone plot with respect to specific energy and specific power. Moreover, some difficulties to make position of solar cell in the Ragone plot are proposed. In this paper some analogical explanation is given to understand the underlined meaning. The barrel model is introduced to make analogy; the specific volume and area to the specific energy and specific power. The relationship between the curves depicted in the axises of cell voltage with current and specific energy with specific power is tried to be shown in the viewpoint of device operation conditions. Also, the limitation of the Ragone plot is discussed to encompass the existing energy devices to be utilized as the standard benchmarking chart.

다기능 복합 솔라윈도우 시스템의 에너지성능평가

조일식(Cho Yil-Sik),김병수(Kim Byoung-Soo) 한국태양에너지학회 2010 한국태양에너지학회 논문집 Vol.30 No.3

The aim of this study was to analysis the Heating/cooling performance of Solar Window System built in apartments. The solar window is the idea to integrate daylight as a third form of solar energy into a PV/Solar Collector system and allows more control due to the possibility to close the reflectors. However, there can be a conflict between the desire for on one hand daylight and view and on the other hand optimal energy conversion for the PV/Solar Collector system. The process of this study is as follows: 1) The Solar Window system is designed through the investigation of previous paper and work. 2)The simulation program(ESP-r, Therm5.0, Window6.0) was used in energy performance analysis. The reference model of simulation was made up to analysis energy performance on Solar Window system. 3)Selected reference model(Floors:15, Area of Unit:148.5㎡) for heating/cooling energy analysis, Energy performance simulation with various variants, such as U-value of Solar Window system according to its position and angle. Consequently, When Solar Window system is equipped with balcony window of Apartment, Annual heating and cooling energy of reference model was cut down about 5%~11%.

타여식 인버터의 태양광 발전시스템의 응용

유권종(Yu Gwon-Jong),전홍석(Jeon Hong-Seok) 한국태양에너지학회 1993 한국태양에너지학회 논문집 Vol.13 No.2·3

본 논문은 최근 미래 에너지원으로서 주목을 받고 있는 태양광발전시스템의 특성에 대해서 태양전지 모듈의 출력특성과 최대출력 추적제어방식 및 태양광발전시스템 구성등으로 분류하여 구체적인 이론적 고찰을 하였다. 또한, 태양광·디젤 복합발전에 타여식 인버터를 채용하여 태양광 ·디젤 복합발전 시스템의 새로운 제어방식을 제안함과 동시에 그 기본특성 및 실증실험 결과에 대해서 기술하였다. 본 논문에서는 태양전지 어레이 최대 출력제어방법으로서 태양전지 어레이 출력전력이 최대점 근방에서 2점의 최대 출력점을 갖는다는 것에 주목하여 제어를 하는 2치 제어법을 채용하여 이론적 검토와 실증실험을 통해 이론의 정당성을 입증하였다. This paper describes technical details of Separate Excitation Inverter (SEI) application for the photovoltaic system. Depending on the output characteristics of solar cell modules, optimum control for the maximum electricity generation of photovoltaic system could be determined. New control mechanism of Separate Excitation Inverter for the Photovoltaic-Diesel Hybrid Generator was tested and examined. Results of this paper describe that maximum out of solar cell array could be obtained at two points. Therefore the two point control method was applied and verified between, the theory and the experiment.

국내외 건물 에너지성능 인증제도 비교, 분석

송승영(Song Seung-Yeong),이수진(Lee Soo-Jin) 한국태양에너지학회 2007 한국태양에너지학회 논문집 Vol.27 No.4

With the increase in the demand for sustainable and environment-friendly development all over the world, it becomes an urgent issue for Korea to reduce CO₂ emission. Since building industry accounts for about 40% of international energy and resource consumption and 30~40% of CO₂ emission, it is essential to prepare for energy-efficient building. This study aims to seek for improvement direction for a domestic Building Energy Efficiency Rating System through the comparison with foreign systems. Two foreign building energy rating systems which have the similar application scope with domestic one, HERS(Home Energy Rating System) and SAP(Standard Assessment Procedure)2005 were selected. As compared with foreign systems, we intended to suggest improvement direction for effective application of Building Energy Efficiency Rating System in Korea.

친환경에너지타운 내 신재생열에너지 시스템 운영결과 분석

김득원(Kim Deukwon),허재혁(Heo Jaehyuk),김민휘(Kim Minwhi),이동원(Lee Dongwon) 한국태양에너지학회 2021 한국태양에너지학회 논문집 Vol.41 No.2

The eco-friendly energy town of Jincheon is Korea’s first renewable energy-based energy self-sufficient town that utilizes multiple renewable energy sources, such as PV, solar thermal, geothermal, and sewage heat to achieve power and thermal energy independence in the unit region. In this study, the thermal energy system of Jincheon, which has been operating since 2017, was analyzed. The thermal energy system consists of a seasonal thermal energy storage connected to approximately 1,600 ㎡ of solar thermal collectors and a midnight thermal energy storage connected to approximately 150 RT heat pumps. Based on data from 2017 to 2020, the heat supply status, expected profits, and greenhouse gas reduction effects of the thermal energy system were analyzed. During the target period, 483 MWh of heating heat, 167 MWh of hot water, and 113 MWh of cooling heat were supplied on an annual average for the last three years. These findings confirmed expected profits of 95.6 million won/yr for hot heat and 1.3 million won/yr for cold heat. In addition, the renewable heat supply resulted in reduction of 156.7 tons of CO₂ eq./yr greenhouse gas.

自然에너지 資源의 有效利用과 開發水準에 관한 硏究

정광섭(K.S.Chung),유승호(S.H.Yoo) 한국태양에너지학회 1996 한국태양에너지학회 논문집 Vol.16 No.2

창호의 투과율과 블라인드 슬랫각도에 따른 빛환경 및 에너지성능 비교 연구

심세라(Sim, Se-Ra),윤종호(Yoon, Jong-Ho),신우철(Shin, U-Cheul) 한국태양에너지학회 2011 한국태양에너지학회 학술대회논문집 Vol.2011 No.11

Recently,curtain wall structure is constructed according to increasing high risebuilding.Glass is usually used in opening of curtain wall structure and window area ratio is finally increased. Excessive Daylighting and solar radiation by large window area ratio cause discomfort glare and add to cooling load in the case of office that is heavy on lighting and cooling. Therefore, this study suggests to use low transmittance window for solve those problems. Indoor lighting environment and building energy performance were analyzed by increasing transmittance from 10% to 90% and comparing fixed venetian blind. Consequently, the range of transmittance that is possible to daylighting and prevent discomfort glare. Secondary energy consumption is efficient in the case that transmittance is the range of from 20% to 50%, primary energy consumption is nice on from 20% to 40%. If those result put together, the range of window transmittance from 30% to 50% is proper in the office in lighting environment and energy consumption aspects.

에너지적합형 지역개발 모형연구

김상현,전원표 한국태양에너지학회 1995 한국태양에너지학회 학술대회논문집 Vol.- No.-

본 연구는 도시기능의 주요 요소인 주거단지 및 공업단지를 중심으로 환경부담을 최소화 시키면서도 에너지효율을 제고 시킬 수 있는 방향으로 에너지적합형 지역개발사업 모형을 개발ㆍ제시하고자 하였다.<br/> 따라서 본고에서는 기존의 토지이용계획에 시스템적 관점의 에너지 및 환경관리를 통합하기 위한 에너지통합계획의 기본개념, 환경적으로 건전하고 지속가능한 개발(ESSD)을 위한 국내외동향 및 기술목록 사례를 소개하고, 주거단지 및 공업단지를 중심으로 “에너지이용합리화법(법률 제4426호)”에 의거한 기존의 에너지사용계획서의 보완방안 및 사례연구를 통한 에너지적합형 개발모형을 소개하고자 한다.

개방형 유동층을 이용한 태양광 고온가스 가열장치의 연구

최준섭(Choi Jun-Seop) 한국태양에너지학회 1992 한국태양에너지학회 논문집 Vol.12 No.1

후레넬렌즈 (면적 0.5㎡)에 의해서 고밀도 집광능력을 갖는 소형태양 집열시스템이 태양에너지 집열장치와 소형 유동층 태양광 수열장치로서 개발되었다. 유동층 수열장치에서의 성능과 온도분포는 SiC입자와 공기를 작동유체로 하여서 측정하였다. 본 연구에서는 공기 최대도달 온도는 1250K이었다. 또한 개발한 태양에너지 집열기와 유동층 수열장치에 대한 에너지 효율은 높았다. A small scale solar collector system composed of a Fresnel lens of 0.5㎡ area as a solar concentrator and a compact fluidized-bed solar receiver was developed. Performance and temperature distribution in the fluidized bed receiver were measured using SiC for particles and air for working fluid. The maximum gas temperature was attained up to 1250K at this moment. In this study, energy efficiency achieved by the present experiment was high for the small scale solar collector system and compact receiver.