• Title/Summary/Keyword: solar electricity

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Performance Analysis of the BIPV/T system by the performance Test- Part2. Thermal Performance (실험을 통한 BIPV/T 시스템 성능분석-2.시스템 열성능)

  • Jo, Hye-Jin;Lee, Hyeon-Ju
    • 한국태양에너지학회:학술대회논문집
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    • 2012.03a
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    • pp.255-259
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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 test system is installed to top floor of the experimental house in the KEPCO Research Institute. The experimental performance is executed from 13th February to 13th March, 2012. The expected system's thermal performance is 1.9kWh under the horizontal solar radiation is $600W/m^2$ and the air flow in the system is $20CMH/m^2$.

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Continuous Commissioning Process and Application (Continuous Commissioning의 절차와 적용)

  • Cho, Young-Hum
    • Journal of the Korean Solar Energy Society
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    • v.30 no.5
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    • pp.77-84
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    • 2010
  • This paper presents the continuous commissioning process, information on the case study facility, improved system operation, and building energy consumption measures before and after continuous commissioning implementation. Continuous commissioning is an ongoing process to resolve operating problems, improve comfort, optimize energy use and identify retrofits for existing commercial and institutional buildings and central plant facilities. Continuous commissioning process consists of two phases. The first phase is the project development phase and the second phase implements and verifies project performance. Results of a case study show that continuous commissioning implementation can reduce energy costs. The energy reports show the electricity savings of 22% and gas savings of 47% on an average.

Demonstration Study of 10kW Poly Metal Panel integrated PV Module (10kW급 지붕재용 태양전지모듈 실증연구)

  • Yi, So-Mi;Noh, Ji-Hee;Joo, Man-Sic
    • 한국신재생에너지학회:학술대회논문집
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    • 2007.11a
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    • pp.246-249
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    • 2007
  • The application of photovoltaics into building as integrated building components has been paid more attention worldwide. Photovoltaics or solar electric modules are sol id state devices, directly converting solar radiation into electricity; the process does not require fuel and any moving parts, and produce no pollutants. And the prefab building method is very effective because the pre- manufactured building components is simply assembled to making up buildings in the construction fields especially the sandwich panel. So, this paper describes a design and performance test of the 10kW poly metal pv module(pmpp) system. It is concluded that the prediction of BIPV system's performance should be based on the more accurate PV module installation.

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The Operating Characteristics of 3kW BIPV System (3kW BIPV시스템의 운전특성)

  • Kim J.H.;Park J.M.;Choi Y.O.;Choi S.J.;Cho G.B.;Baek H.R.
    • Proceedings of the KIPE Conference
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    • 2006.06a
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    • pp.552-554
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    • 2006
  • BIPV(Building Integrated PV) system can expect dual effects that reduce expenses for establishment of PV system by adding new function as outer covering material of building expect producing the electricity. But, there are many generation differences according to the exterior environmental facts(solar cell array, design and installation condition of interactive inverter system) Therefore, it is difficult to optimum design. Consequently in advance design system, we experiment 3kW BIPV(Building Integrated PV) generation. We concrete PV system efficient application of variable. BIPV system that is proposed in this paper, was established in Solar Energy research center of Chosun University, composed with system. This research is a basic study for application of building integrated photovoltaic system for building

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A Study on the Development of Roof Integrated PV Module (Focused on the Prefab Building System) (지붕재 일체형 태양전지 모듈의 개발에 따른 내구성 평가 (조립식 건축시스템을 중심으로))

  • Yi, So-Mi;Noh, Ji-Hee;Lee, Eung-Jik
    • KIEAE Journal
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    • v.6 no.4
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    • pp.17-24
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    • 2006
  • The application of photovoltaics into building as integrated building components has been paid more attention worldwide. Photovoltaics or solar electric modules are solid state devices, directly converting solar radiation into electricity; the process does not require fuel and any moving parts, and produce no pollutants. And the prefab building method is very effective because the pre- manufactured building components is simply assembled to making up buildings in the construction fields especially the sandwich panel. Architecture considerations for the integration of PV module to building envelope such as building structure, construction type, safety, regulation, maintenance etc. have been carefully refelected from the early stage of BIPV module design. Trial product of BIPV module are manufactured and sample construction details for demonstration building are purposed. Therefore, this paper intends to advanced its practical use by proposing how to get integrated PV system which can be applied to prefab building material, and how to apply it.

Economic Feasibility Assessment of a Deep Sea Water District Cooling System (건물냉방시스템에 해양심층수 적용의 경제성 분석)

  • Kim, Sam-Uel;Cho, Sooi
    • Journal of the Korean Solar Energy Society
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    • v.29 no.2
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    • pp.14-21
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    • 2009
  • Recently, alternative energy resources have emerged considerably due to the high oil prices and environment problems. Deep sea water that is one of the natural energy sources can be one of the attractive solutions to reduce the environment problems, and there are already a few examples in some developed countries. In this study, cooling system of deep sea water using heat exchangers of two hotels, located in near Haeundae Bay in Busan, have been analyzed on the quantity of electricity and gas use comparison between existing cooling system and deep seawater cooling system by using E-Quest simulation program. The results of the study showed that the Hotel A approximately saves 370 millions won per year, and the Hotel B saves 248 millions won per year. It means that the cooling system by using deep sea water has great worth to reduce the ratio of fuel sources.

Impedance analysis of electrochemical systems using an ion-conducting polymer electrolyte membrane (전도성 고분자 전해질막을 이용하는 전기화학적 시스템의 임피던스 해석)

  • Park, Jin-Soo;Moon, Seung-Hyeon;Kim, Chang-Soo
    • Proceedings of the Membrane Society of Korea Conference
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    • 2004.05b
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    • pp.1-8
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    • 2004
  • Ion-conducting polymer electrolyte membranes (PEMs) have recently used in developing fuel cell or solar cell for portable, mobile and residential applications [1]. Polymer electrolyte membrane fuel cell (PEMFC), direct methanol fuel cell (DMFC), alkaline electrolyte fuel cell (AFC) and dye-sensitized solar cell have been employing the ion-conducting PEMs to complete their electrical circuits to produce electricity.(omitted)

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A Study on the Energy Consumption Analysis and Improvement of Busan City Public Building (부산시 공공건축물의 에너지사용량 분석 및 개선방안 연구)

  • Kim, Sam-Uel;Kim, Se-Hwan
    • Journal of the Korean Solar Energy Society
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    • v.31 no.1
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    • pp.115-120
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    • 2011
  • The energy used in Korea is strongly dependent on that produced by foreign countries. Accordingly, saving energy is more important than ever, because of the rise of international oil prices and depletion of oil resources. The development of energy efficient buildings is required especially for public buildings in Korea. In this study, the energy use of public buildings is identified. Then, the analysis of energy usage through regional offices in Busan City offers energy saving measures for public buildings.

Development of a Energy Demand Estimator for Community Energy Systems (건물 단지에 대한 에너지 수요 예측 데이터베이스 응용 프로그램 개발)

  • Chung, Mo;Park, Hwa-Choon
    • Journal of the Korean Solar Energy Society
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    • v.29 no.3
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    • pp.37-44
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    • 2009
  • The field-surveyed and measured energy consumption data is processed to develop building energy demand models for heating, hot water, cooling, and electricity. The load models are systematically organized as a database and hourly loads for a span of year (8760 hours) are generated by the program. Rased on those models a Microsoft Access application program is developed to calculate energy demands for a Community Energy System (CES) composed of 17 types of buildings. User-friendly interfaces are provided to assist non-expert end users and necessary tools to link the calculation results to subsequent coagulations such as operation simulation or economic assessment.

Performance Analyzing Technique of Small Hydro Power (소수력발전 성능특성 분석기법 연구)

  • Park, W.S.;Lee, C.H.
    • Journal of the Korean Solar Energy Society
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    • v.21 no.1
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    • pp.21-25
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    • 2001
  • A methodology to predict the output performance of small hydro power using discharge of sewage treatment plant has been studied. Two sewage treatment plants existing in Chunrabuk-Do were selected and the output performance characteristics for these plants were analyzed, using developed model. As a result, it was found that the developed model in this study can be used to analyze the output characteristics for small hydro power using discharge of sewage treatment plant. Additionally, primary design specifications such as design flowrate, capacity, operational rate and annual electricity production were estimated and discussed for two plants.

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