염료감응태양전지의 광학특성분석을 통한 건축창호 적용가능성 평가 연구

심세라(Sim Se-Ra),윤종호(Yoon Jong-Ho),정선영(Jeong Seon-Yeong),백남춘(Baek Nam-Choon) 한국태양에너지학회 2011 한국태양에너지학회 논문집 Vol.31 No.3

It can gain both the electric energy production and disperse of light at the same time if DSSC is applied in the building as window system. It means to help facade design and to be used in lighting, heating, cooling energy directly by applicating DSSC BIPV window that is possible to daylighting and materialization of color. For this, optical characteristics analysis that is basic step must take precedence. So, basic databases of DSSC are builded and optical performances according to the double and triple glazing are evaluated by analyzing spectral data of various colored DSSC. As a result, Green④ has the highest visible transmittance that is 28.8%, and Blue③ has the lowest that is 0.3%. And, in case of optical performance of Green④ depending on the incidence angle, SHGC and Tsol are decreased sharply from more than 60°. Finally, It is judged that Red④, Green①, ④, Blue④ are suitable for application in office building because visible transmittance is high and solar heat gain coefficient is low relatively in spite of composing to double and triple glazing.

비정질 투광형 박막 BIPV창호의 연간 표면온도 특성에 관한 실험적 연구

심세라(Sim Se-Ra),윤종호(Yoon Jong-Ho),신우철(Shin U-Cheul) 한국태양에너지학회 2010 한국태양에너지학회 학술대회논문집 Vol.2010 No.11

Thin-film photovoltaic begins to get noticed as a next solar cell because it has a extensive flexibility to integrate with building and low manufacturing cost. For application of thin-film transparent solar cell in the building, it is essential to consider the surface temperature of solar cell since it have a big effect on efficiency of solar cell and building load. In this study, we conducted a long-term experimental study with mock-up applied window integrated thin-film PV module for analyzing temperature characteristics of that. Thin-film transparent BIPV window system are applied on vertical(90°), horizontal(0°), slope(30°) in mock-up facade and we monitored insolation and 5 points temperature of BIPV window layer surfaces. As a result, in winter with low solar attitude, BIPV window in vertical side has higher temperature than other sides and it is opposite in summer. Second point temperature of BIPV window has increased by 51.89℃ on vertical side in 17 August. And air layer temperature in summer has increased by 51.37℃ that is high about 5℃ in maximum than clear window. Temperature of fifth point that is inside surface is always low 0.59℃ than clear window in the daytime of summer and high 1.79℃ in the nighttime of winter.

BIPV창호의 표면온도 특성에 따른 실내 온열환경 평가 연구

심세라(Sim Se-Ra),윤종호(Yoon Jong-Ho),신우철(Shin U-Cheul) 한국건축친환경설비학회 2012 한국건축친환경설비학회 학술발표대회 논문집 Vol.2012 No.3

Indoor thermal environment made by excessive light and heat through glass facade of curtain wall structure should be improved and alternatives which can effectively control the insolation is need. In this study, transparent amorphous silicon BIPV window system was suggested as an alternative. Accordingly, in this study, a-Si BIPV window and common clear window installed on the mock-up at the same time for evaluating surface temperature characteristics compared to common clear common window. As a result, surface temperature of BIPV window had been kept high by average of 1.79℃ during nighttime in winter and high by average of 0.59℃ during daytime in summer than Clear window. When BIPV window was installed in the building, MRT keeps low by average of about 3℃ in winter and by about 8℃ in summer than when clear window was installed. The room where BIPV window was installed was comfortable over 3,634 hours during a year. Also, the time corresponding to the range of PMV from -0.5 to 0.5 was about 15.3% with BIPV window and about 7.3% with clear window for a year. Finally, it was demonstrated that BIPV window could be an alternative to improve thermal comfort apart from power generation and building energy performance.

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.

건축물의 신재생에너지 최적화 설계를 위한 Impact table 구축 및 활용방안 연구

심세라(Sim, Se Ra),윤재현(Yoon, Jae Hyun),신지웅(Shin, Jee Woong),이건호(Lee, Keon ho) 한국건축친환경설비학회 2015 한국건축친환경설비학회 논문집 Vol.9 No.2

Recently, the importance of renewable energy has been emerged in accordance with changes in domestic and international multilateral environments, and the legal and regulatory basis for the expansion of renewable energy application is strengthening in the field of domestic architecture. However, despite the need for strengthening policies and renewable energy, the specific installation Planning for Renewable Energy equipment in the early stage of design or the renovation that fits into each building has a numerous limitations. The purpose of this study is to create an Impact table A, Qualitative/quantitative decision-making process for the proposed building, reflected field survey and constraint. Moreover, based on this, impact table B, the optimal combination selection of energy-efficient renewable energy source and installation, implied energy performance, cost and construct ability is presented. These materials are considered to be used as a reference and activation deriving the optimized quantitative combination of renewable energy with the visual analysis and easy access to actual consumers who want to apply renewable energy in the future.

냉 · 난방 및 조명에너지를 통합 고려한 DSSC BIPV창호의 사무소건물 적용 효과 연구

심세라(Sim Se-Ra),윤종호(Yoon Jong-Ho),신우철(Shin U-Cheul) 한국태양에너지학회 2011 한국태양에너지학회 논문집 Vol.31 No.3

The aim of this study is to evaluate how much would the building energy consumption be saved by applying DSSC BIPV window which is possible to control the transmittance and express the color in the office building. For this, physical characteristics such as transmittance and reflectance, U-factor of DSSC are analyzed and an annual energy consumption that is connected to dimming control is calculated when DSSC BIPV window is applied by alternate clear window system. As a result, It is possible to reduce the an annual energy consumption as much as 4.1% by just change the clear double window system to DSSC BIPV double window system because the major factor to reduce energy consumption in the office that has much cooling load than other building is SHGC. When the thermal insulation properties of DSSC BIPV window with low-e coating and making triple window are improved, energy saving ratio is about 9%. Plus, energy saving ratio of 25~28% in lighting energy consumption is possible when the dimming control system with DSSC BIPV window is adopt.

공동주택의 열부하 및 탄소배출량 저감을 위한 태양열시스템의 최적 적용 방안 연구

윤종호(Yoon Jong-Ho),심세라(Sim Se-Ra),신우철(Shin U-Cheul),백남춘,곽희열(Kwak Hee-Yu) 한국태양에너지학회 2011 한국태양에너지학회 논문집 Vol.31 No.2

Architectural market in the world is trying to develop Zero Carbon Buildng that doesn't use fossil fuel. Residential building that thermal load such as heating and domestic hot water is over 70% in energy consumption is easy to make Zero Carbon Building compared with office building that is mainly electric load. So, As a preliminary for analyzing the effect of Solar thermal system in the building, an annual energy consumption of residential building and total heat loads are calculated. Based on this result, three alternatives of solar thermal system for hot water and heating are applied in the building while installation area is increasing. Solar thermal system is applied on balcony and roof of apartment building as the way to reduce thermal load. In the first case that solar thermal system for hot water is applied on the balcony, optimum installation area is 56㎡. And you could install 40㎡ of this system in the roof that angle is 30°. In the second case of solar thermal system for heating and hot water, you can install 40㎡ on the roof. As a result of economic evaluation, the most economical application method is to install 40㎡ of solar thermal system for only hot water on the roof of the building. At that time, you can payback the initial investing cost within 10 years. And carbon emission of this method can be reduced until about 4 ton per year.

염료감응태양전지의 투과율에 따른 채광성능 및 현휘지수 분석을 통한 적정창면적비에 대한 연구

오명환(Oh Myung-Hwan),심세라(Sim Se-Ra),이철성(Lee Chul-Sung),진경일(Chin Kyung-Il),윤종호(Yoon Jong-Ho) 한국태양에너지학회 2009 한국태양에너지학회 학술대회논문집 Vol.2009 No.11월

It is more necessary to consider the various factors for developmenting visible PV module of alternative window than traditional PV module. It must have sufficient performance which is Tvis, daylighting, daylight factor, glare index. so that more needs to consider suitable plan and total evaluated technology. Under the this background. For using commonly a combination BIPV module system and Daylinghting that can alternative architectural window, our goal on this study is drawing proper window area ratio as the window by analyzing lighting performance and glare index depending on transmittance of DSSC. On this study, we drew the result about window area ratio that can apply in the building when applying DSSC in the window. In situation that window is alternated as curtain wall in atrium that has big Widow area, if applying red 15.8% DSSC of low transmittance, it is expect to proper because it is suitable illumination standard and doesn't occur a discomfort glare. In case of office, we propose to apply red 33.2% or blue 35.2% DSSC of high transmittance for no affecting lighting load. we expect to contribute to select proper and effective window when applying the window in the building by drawing the window area ratio that can apply in thee building depending on transmittance of DSSC and offering the glare index data

빛환경 및 건물에너지성능을 통합 고려한 사무소건물용 DSSC BIPV창호 적정 투과율에 관한 연구

정우람(Jeong Woo-Ram),심세라(Sim Se-Ra),윤종호(Yoon Jong-Ho) 한국건축친환경설비학회 2012 한국건축친환경설비학회 논문집 Vol.6 No.3

The main purposes of windows in building are to take the view of the outside and to play the role in decreasing the lighting and heating energy through the daylighting. However, the increase in the energy lighting and cooling consumption is caused by the blind which is unreasonably operated in many curtain wall offices. The blind is closed about 75% of the time without being adjusted by occupants. In this study, the indoor lighting environment was analyzed when adjusting visible transmittance of DSSC BIPV window. Three visible transmittance of 10%, 20% and 30% were chosen for the analysis. The experiment was performed in the curtain-wall office building. Dynamic simulation considering lighting environment and building energy performance was conducted by using EnergyPlus as a software analysis tool. Useful Daylight Illuminance for lighting environment is analyzed both qualitatively and quantitatively as an evaluation index. Building energy performance analysis synthetically considered both DSSC BIPV window and lighting control. As a result, securing the appropriate value of interior illuminance is possible because the low visible transmittance of DSSC BIPV window prevents the introduction of the excessive daylight. DSSC BIPV window is effective for cooling energy reduction in the summer because of low solar heat gain compared to the clear window. Futhermore, energy saving is additionally improved if adjusting lighting control was activated. Consequently, when the DSSC BIPV window that enables the introduction of the suitable daylight is integrated with lighting control system, it further reduce both lighting and cooling energy consumption.

투명 박막 태양전지를 이용한 BIPV 창호의 열 및 광학특성 분석연구

윤종호(Yoon Jong-Ho),김효중(Kim Hyo-Jung),이철성(Lee Chul-Sung),심세라(Sim Se-Ra) 대한건축학회 2010 대한건축학회논문집 Vol.26 No.10

The concern of the world about Building Integrated Photovoltaic that can alternate with the exterior materials in the building is growing from day to day. There are many kinds of the solar photovoltaic which can apply to the building. Among them, a-si thin film solar cell is possible to alternate the window and to daylighting. So, if alternating the glass material that occupy the great part of building facade, growth possibility and the effect from BIPV will be maximized. Therefore, in this study, the database as to optical performance depending on the spectrum section that is the most base step was established for applying a-si BIPV window system in the building using thin film solar cell, And optical and thermal performance of a-si BIPV window system were evaluated by simulation. For conducting this, the optical properties of PV raw module and PV single module that are Tsol(0.086, 0.067 each) and Tvis(0.091, 0.082 each), SHGC(0.303, 0.295 each) were evaluated. And we analyzed thermal performance of a-si BIPV window system by the configuration of window components and we suggested the most suitable configuration methode of a-si BIPV window. Each of the U-factor of Double and Triple a-si BIPV window are 1.174W/㎡ㆍ℃, 0.863W/㎡ㆍ℃. As a result, optical properties of a-si BIPV window system has low transmittance comparing common window system but it can meet the illumination depending on the building use and reduce the glare effect that can occur when clear window system is used if a-si BIPV window system is applied on a large area in building facade.