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한국신·재생에너지학회> 신재생에너지> 태양에너지 시스템에 적합한 표준기상데이터의 제작과 일사량 데이터 분석

KCI등재

태양에너지 시스템에 적합한 표준기상데이터의 제작과 일사량 데이터 분석

Generation of Typical Meteorological Year Data Suitable for Solar Energy Systems and Analysis of Solar Irradiance Data

이현진 ( Hyun-jin Lee ) , 김신영 ( Shin-young Kim ) , 윤창열 ( Chang-yeol Yun )
  • : 한국신·재생에너지학회
  • : 신재생에너지 13권3호
  • : 연속간행물
  • : 2017년 09월
  • : 24-33(10pages)
신재생에너지

DOI


목차

1. 서 론
2. 기상데이터와 법선면 직달일사량
3. 표준기상데이터 제작 방법
4. 표준기상데이터 분석
5. 결 론
감사의 글
References

키워드 보기


초록 보기

The typical meteorological year (TMY) data reflect the long-term meteorological characteristics in a specific location and thereby serve as critical input in solar energy simulations. On the other hand, domestically, only a few of studies have been dedicated to TMY data with reliable solar irradiance and their analysis. We generated new TMY data of 10 major cities using the meteorological data from 1991 to 2010 measured by the Korea Meteorological Administration (KMA). To generate TMY data suitable for solar energy systems, we applied a better solar decomposition model for direct normal irradiance (DNI) and the generation method by National Renewable Energy Laboratory (NREL). We analyzed the new TMY solar irradiance data by comparisons with the 20-year long-term means, data provided by Korean Solar Energy Society (KSES), and data included in the TRNSYS and PVsyst programs. Finally, we demonstrated that the TMY data proposed in this study represent the solar irradiance more appropriately.

UCI(KEPA)

I410-ECN-0102-2021-500-001364842

간행물정보

  • : 공학분야  > 화학공학
  • : KCI등재
  • :
  • : 계간
  • : 1738-3935
  • : 2713-9999
  • : 학술지
  • : 연속간행물
  • : 2005-2021
  • : 523


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17권3호(2021년 09월) 수록논문
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1방음벽 PVT의 공기유로 설계를 위한 CFD 시뮬레이션 사전 분석 연구

저자 : 김유진 ( Yu-jin Kim ) , 김기봉 ( Ki-Bong Kim ) , 이의준 ( Euy-joon Lee ) , 강은철 ( Eun-chul Kang )

발행기관 : 한국신·재생에너지학회 간행물 : 신재생에너지 17권 3호 발행 연도 : 2021 페이지 : pp. 1-7 (7 pages)

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The Korean government announced various energy policies, such as the to reduce 37% of the business-as-usual (BAU) greenhouse gas emissions by 2030. The policies aim to increase the renewable electricity generation ratio to 20% by 2030. PVT is a hybrid technology, which combines photovoltaic (PV) and solar collectors. It is capable of generating electricity and thermal energy simultaneously. It has a great potential to be used as a renewable and clean solar energy. However, there exists a shortage of space for the installation of PVT systems in Korea. To overcome this, in this paper proposes four types of soundproof wall PVT air channels, which were designed and optimized, based on the CFD (Computation Fluid Dynamic) analysis results. The thermal energy generation for multiple PVT units connected in series and pressure drop sensitivity were analyzed, depending on inlet velocity.

KCI등재

2합성가스 발효에서 배지 내 Vitamin 농도의 에탄올 생산에 대한 영향

저자 : 임홍래 ( Hongrae Im ) , 안태광 ( Taegwang An ) , 박소은 ( Soeun Park ) , 김영기 ( Young-kee Kim )

발행기관 : 한국신·재생에너지학회 간행물 : 신재생에너지 17권 3호 발행 연도 : 2021 페이지 : pp. 8-15 (8 pages)

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In this study, we assessed the effect of vitamin components (such as biotin, thiamine-HCl, and folic acid) on microorganism microbial growth and ethanol production was examined to enhance increase the ethanol concentration in the Clostridium autoethanogenum culture process using syngas as a sole carbon source. Biotin and folic acid concentrations of 0.2, 2, 20, and 100 μg/L were used in the culture experiments at 0.2, 2, 20, and 100 μg/L concentrations. The maximum ethanol concentrations of 2.81 g/L and 3.12 g/L were obtained by adding at 0.2 μg/L biotin and folic acid, respectively. Moreover, Thiaminethiamine--HCl at concentrations of 0.5, 5, 50, and 250 μg/L were was examined evaluated to in the culture experiments. The maximum ethanol concentration of 2.84 g/L was observed at 0.5 μg/L of thiamine--HCl. As a resultThus, the optimized concentrations of biotin, thiamine--HCl, and folic acid were determined at 0.2, 0.5, and 0.2 μg/L, respectively, for enhancing increasing the ethanol production. In conclusion, the maximum ethanol production was obtained by adding the minimal concentration of vitamins in C. autoethanogenum culture.

KCI등재

3부유식 해상태양광 발전을 위한 단위 플랫폼 구조물의 실해역 성능평가

저자 : 나경원 ( Kyoung Won Na ) , 추진훈 ( Jinhun Choo ) , 이병준 ( Byung Jun Lee )

발행기관 : 한국신·재생에너지학회 간행물 : 신재생에너지 17권 3호 발행 연도 : 2021 페이지 : pp. 16-23 (8 pages)

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Recently, the Korean government announced a plan to activate renewable energies, with focus on clean energy sources such as solar and wind power as the core and the goal of achieving carbon neutrality by 2050. Unlike other photovoltaic (PV) systems, offshore PV installations are advantageous for large-scale expansion because of the ease of securing sites; they also enable lowering the power generation costs based on construction of large-scale power facilities of megawatt class or higher owing to low noise and landscape damage. However, any power generation should proceed with consideration of the special environmental conditions of the ocean. Above all, when installing large-scale facilities, it is important to reduce fluctuations of the structure and secure stability to actively respond to waves. This study is concerned with the development of a floating body technology that actively responds to waves so as to enable commercialization of offshore solar power. A unit platform for research and development on offshore PV generation was installed in the Saemangeum sea, and the structural fluctuations and stability were analyzed to ensure conformity with the major performance indicators.

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4말도 인근 해상풍력발전에 대한 주민수용성 연구

저자 : 박재필 ( Jaepil Park ) , 이상혁 ( Sanghyuk Lee )

발행기관 : 한국신·재생에너지학회 간행물 : 신재생에너지 17권 3호 발행 연도 : 2021 페이지 : pp. 24-31 (8 pages)

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Through 'The Renewable Energy 3020 Implementation Plan' for carbon neutrality, the government promised to raise the proportion of renewable energy generation to 20% and renewable energy installation capacity to 63.8% by 2030. Therefore, we plan to test a 5.5 MW offshore wind turbine near Maldo, Gunsan. In this project, we measure the level of public acceptance and perform ordinary least squares (OLS) regression analysis to show the determinants of public acceptance. The regression results are as followed. First, it is judged that the closer the distance to the offshore wind turbine, the more the economic effects considered by residents. Second, especially in Maldo, the experience of being discriminated from the Saemangeum project, is understood to have caused distrust in the surrounding fishing villages chief/Fisheries Cooperatives, converted into a local community effect. Finally, the policy implications are as follows. First, a bottom-up problem-solving method is required to improve public acceptance, based on the Living Lab. Second, the island community may be indifferent to the briefings or forums of outsiders. Therefore, a gradual approach is required through (in)formal channels based on reliability from a long-term perspective with nearby universities and research institutes using SamsØ Energy Academy.

KCI등재

5암반 대수층에서 개방형 지열 시스템의 개발 및 적용

저자 : 심병완 ( Byoung Ohan Shim ) , 김성균 ( Seong-kyun Kim ) , 최한나 ( Hanna Choi ) , 이수형 ( Soo-hyoung Lee ) , 하규철 ( Kyoochul Ha ) , 김용철 ( Yongchul Kim )

발행기관 : 한국신·재생에너지학회 간행물 : 신재생에너지 17권 3호 발행 연도 : 2021 페이지 : pp. 32-41 (10 pages)

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A groundwater source heat pump (GWHP) was developed in this study by adapting a borehole heat exchanger with closed-loop and open-loop systems in a new building. In the pilot test building, the air-conditioning on the second floor was designed to employ a closed-loop system and that on the third floor had an open-loop system. The GWHP design is based on the feasibility of groundwater resources at the installation site. For the hydrogeological survey of the study site, pumping and injection tests were conducted, and the feasibility of GWHP installation was evaluated based on the air-conditioning load demand of the building. The site was found to be satisfactory for the design capacity of the thermal load and water quality. In addition, the effect of groundwater movement on the performance of the closed-loop system was tested under three different operational scenarios of groundwater pumping. The performance of the system was sustainable with groundwater flow but declined without appropriate groundwater flow. From long-term observations of the operation, the aquifer temperature change was less than 2℃ at the observation well and 5℃ at the injection well with respect to the initial groundwater temperature. This pilot study is expected to be of guidance for developing GWHPs at fractured rock aquifers.

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1선택적 캐리어 수집을 위한 터널 산화막을 이용한 결정질 실리콘 태양전지

저자 : 한상욱 ( Sanguk Han ) , 심경배 ( Gyungbae Shim ) , 박수영 ( Sooyoung Park ) , 안시현 ( Shihyun Ahn ) , 박철민 ( Cheolmin Park ) , 조영현 ( Younghyun Cho ) , 김현후 ( Hyunhoo Kim ) , 이준신 ( Junsin Yi )

발행기관 : 한국신·재생에너지학회 간행물 : 신재생에너지 13권 3호 발행 연도 : 2017 페이지 : pp. 4-9 (6 pages)

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In silicon solar cells, the doping process is performed to form a Back Surface Field (BSF) layer and is followed by many other processes. In this study, phosphorus doped a-Si:H doped at a high concentration in the tunnel oxide layer was crystallized through furnace annealing and Excimer Laser Annealing (ELA), in order to apply it to the Polycrystalline (Poly) - BSF layer in the Tunnel Oxide Passivated Contact (TOPCon) structure. In the excimer laser annealing fabrication process, an XeCl excimer laser with a wavelength of 308 nm was used, and the thickness of the a-Si layer and energy density of the laser were varied from 20 to 40 nm and from 390 to 450 mJ/㎠, respectively. The highest carrier lifetime and implied VOC were found to be 588 ㎲ and 697 mV, respectively, at an a-Si thickness of 20 nm and energy density of the laser of 450 mJ/㎠. The TOPCon cell was fabricated using wet oxidation and plasma oxidation. Its efficiency and FF were found to be higher when fabricated using the wet process, with values of 19.41% and 74.8%, respectively, while its VOC and JSC values were higher when it was fabricated using plasma oxidation, with values of 41.04 mJ/㎠ and 644 mV, respectively. Therefore, if the conditions providing for a high implied VOC and carrier lifetime and sufficient crystallization were found, the efficiency of n-type TOPCon solar cells could be increased.

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2다중효용방식 해수담수기의 성능특성에 관한 2차원 수치해석

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발행기관 : 한국신·재생에너지학회 간행물 : 신재생에너지 13권 3호 발행 연도 : 2017 페이지 : pp. 10-23 (14 pages)

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A tilted multiple-effect solar distiller was proposed and analyzed theoretically. The distiller consisted of a glass cover, number of parallel plates, and saline-soaked wicks contacted with the plates. The wick color contacted with the glass cover used black to increase the absorptance of solar energy. A 2D numerical analysis model of heat and mass transfer was developed to analyze the optimum operating and design conditions of the distiller. The parameters analyzed were the feeding flow rate of seawater, slope of the distiller, and number of effects. The results showed that the distillate water flow rate depends strongly on the lower feeding rate of seawater but is rarely affected by the decreasing rate of the seawater feed in the multi-effect section. The optimum numbers of effects were founded to be 14-16, which was determined based on the productivity at the summer solstice. The total daily distillate production was predicted to be approximately 0.337, 3.18, and 7.80 kg/m 2 on the winter solstice, equinox, and summer solstice, respectively.

KCI등재

3태양에너지 시스템에 적합한 표준기상데이터의 제작과 일사량 데이터 분석

저자 : 이현진 ( Hyun-jin Lee ) , 김신영 ( Shin-young Kim ) , 윤창열 ( Chang-yeol Yun )

발행기관 : 한국신·재생에너지학회 간행물 : 신재생에너지 13권 3호 발행 연도 : 2017 페이지 : pp. 24-33 (10 pages)

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The typical meteorological year (TMY) data reflect the long-term meteorological characteristics in a specific location and thereby serve as critical input in solar energy simulations. On the other hand, domestically, only a few of studies have been dedicated to TMY data with reliable solar irradiance and their analysis. We generated new TMY data of 10 major cities using the meteorological data from 1991 to 2010 measured by the Korea Meteorological Administration (KMA). To generate TMY data suitable for solar energy systems, we applied a better solar decomposition model for direct normal irradiance (DNI) and the generation method by National Renewable Energy Laboratory (NREL). We analyzed the new TMY solar irradiance data by comparisons with the 20-year long-term means, data provided by Korean Solar Energy Society (KSES), and data included in the TRNSYS and PVsyst programs. Finally, we demonstrated that the TMY data proposed in this study represent the solar irradiance more appropriately.

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4태양열 흡수식냉방과 태양광 터보냉방의 성능비교

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발행기관 : 한국신·재생에너지학회 간행물 : 신재생에너지 13권 3호 발행 연도 : 2017 페이지 : pp. 34-40 (7 pages)

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This paper compares the solar thermal absorption cooling and photovoltaic (PV) turbo cooling performance in Riyadh, Saudi Arabia using a System Advisor Model (SAM) program provided by NREL (National Renewable Energy Laboratory). The cooling capacity of the two cooling systems was set to 100 usRT under the irradiation condition at 12 PM in March. The PV cooling capacity was maximum 100 usRT in June and September, but it decreased to 80 usRT in December because of the lower irradiation. In the case of solar thermal absorption cooling, the performance was greater than 100 usRT in June and September but the performance was lower than PV cooling in December. The annual deviation of the cooling performance of the solar thermal cooling is larger than that of PV cooling. This is probably due to the large change in the optical efficiency of the solar thermal system. Therefore, it is necessary to optimize the installation capacity of the solar thermal cooling system.

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5재료 불확실성을 고려한 풍력터빈용 복합재료 블레이드의 신뢰성 기반 최적설계

저자 : 이승표 ( Seungpyo Lee )

발행기관 : 한국신·재생에너지학회 간행물 : 신재생에너지 13권 3호 발행 연도 : 2017 페이지 : pp. 41-50 (10 pages)

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7공기-물 직접 접촉식 열교환기를 구비한 농업시설 난방용 히트펌프시스템의 성능 분석

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To utilize the air type natural energy for greenhouse heating during winter, it is necessary to develop a heating system including heat recovery equipment from air type thermal energy. This study examined the efficiency of an air-water direct contact type heat exchanger (DCHE) in a heat pump and the performance of the heat pump. The air entering the inlet of the heat exchanger contacts the water and exchanges the heat in the heat exchanger. The water obtaining the thermal energy from the air is used as the heat source of a heat pump and the heat pump generates higher energy by compressing a refrigerant. The energy from the heat pump is stored in the heat storage tank with water by heat exchange. The efficiency of the heat exchanger decreased with increasing intake air temperature. The discarded heat that cannot be used increased with increasing air temperature. Overall, it is necessary to design and calculate the heat capacity of a heat pump to determine the lowest temperature of the heat source to be utilized.

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8음식물류 폐기물 바이오가스 플랜트의 경제성 분석

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발행기관 : 한국신·재생에너지학회 간행물 : 신재생에너지 13권 3호 발행 연도 : 2017 페이지 : pp. 65-72 (8 pages)

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Biogas plants using food waste and other organics as a substrate to produce biogas for energy utilization were analyzed for their economic feasibility. In the case of anaerobic digestion of food wastes alone, the economic feasibility of biogas production was quite low. Therefore, it is essential to increase the government subsidy for the construction of biogas facilities. In the case of food waste leachate, it was economically feasible without government support. Currently, approximately 30% of food waste leachate was processed in the biogas facility. The number of them are expected to increase gradually in Korea. The co-digestion of food waste leachate and livestock manure was not economically feasible, but it is expected that the number of facilities will increase as the government subsidies can compensate the loss. The co-digestion of food waste and food waste leachate will help improve the economics of food waste biogas facilities. Among the food waste and other organic treatment processes, biogas production from food waste leachate by co-digestion was found to be more feasible than the other options. Overall biogas production using food waste leachate should be encouraged continuously by government.

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9퍼지 TOPSIS를 이용한 에너지 선택 우선순위 결정

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발행기관 : 한국신·재생에너지학회 간행물 : 신재생에너지 13권 3호 발행 연도 : 2017 페이지 : pp. 73-84 (12 pages)

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This paper is aimed to present a fuzzy decision-making approach to deal with optimal energy selection problem for energy strategy planning. An evaluation method was derived on TOPSIS, to assist in the energy priority decision in a fuzzy environment where the subjectivity and vagueness are handled with linguistic terms parameterized by triangle fuzzy numbers. This paper applies the fuzzy TOPSIS method to determine the importance weight of decision criteria and to synthesize the ratings of candidate energy alternatives. This method was demonstrated with a case study involving 7 evaluation criteria (efficiency, safety, investment cost, operation and maintenance, pollution emission, land use, social acceptability), 10 energy alternatives (solar, nuclear, wind, tidal, waste gasification, biomass, hydropower, coal, petroleum, LNG) for energy selection problem assessed by 7 evaluators from energy related institutes. In the perspective of 7 evaluation criteria, 10 energy alternatives are preferred according to solar (A1) > wind (A3)> biomass (A6) > hydropower (A7) > LNG (A10) > tidal (A4) > petroleum (A9) > waste gasification (A5) > nuclear (A2) > coal (A8). This study shows that the proposed approach is well suited as a group decision-making method for energy selection decisions.

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자료제공: 네이버학술정보
발행기관 최신논문
자료제공: 네이버학술정보

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