• Title/Summary/Keyword: Daylight Simulation

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The study on the Analysis of Useful Daylight Illuminance in rural standard house model - By Dynamic Daylight Simulation Using Weather Data - (농어촌주택 표준설계의 유용조도 분석에 관한 연구 - 기상데이터 기반 동적 자연채광 시뮬레이션을 기반으로 -)

  • Yun, Young Il;Song, Jeong Suk;Lee, Hyo Won
    • KIEAE Journal
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    • v.11 no.1
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    • pp.47-55
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    • 2011
  • Daylight is highly beneficial for improving the indoor environmental quality and reducing building energy consumption, daylighting applications are scarcely considered, especially during the Rural standard house models design process, because of lack of previous studies on elderly-light environment and complex simulation process. Therefore, daylighting process were performed using ECOTECT, which has various advantage such as easy user interface and simple simulation processes. Moreover, dynamic daylight simulation were performed using whether data. Static simulation are performed to compute static metrics such as daylight factor, whereas dynamic simulation are performed for dynamic metrics such as daylight autonomy and useful daylight illuminance using annual weather data On the basis of daylight autonomy and useful daylight illuminance analysis result, variations in annual daylight performances. A parametric and regression analysis of the window-to-wall ratio and visible transmittance showed that daylight factor, daylight autonomy increased with window-to-wall ratio and visible transmittance. It can be concluded that this new daylight criteria. useful daylight illuminance, will enable architect to obtain better fenestration design.

The Study on the Analysis of Useful Daylight Illuminance in Care Facilities - By Dynamic Daylight Simulation Using Weather Data - (요양시설의 유용조도 분석에 관한 연구 -기상데이터 기반 동적 자연채광 시뮬레이션을 기반으로-)

  • Yun, Youngil;Cho, Juyoung;Lee, Hyowon
    • Journal of The Korea Institute of Healthcare Architecture
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    • v.17 no.1
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    • pp.33-40
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    • 2011
  • Daylight is highly beneficial for improving the indoor environmental quality and reducing building energy consumption, daylighting applications are scarcely considered, especially during the care facility design process, because of lack of previous studies on elderly- light environment and complex simulation process. Therefore, daylighting process were performed using ECOTECT, which has various advantage such as easy user interface and simple simulation processes. Moreover, dynamic daylight simulation were performed using whether data. Static simulation are performed to compute static metrics such as daylight factor, whereas dynamic simulation are performed for dynamic metrics such as daylight autonomy and useful daylight illuminance using annual weather data On the basis of daylight autonomy and useful daylight illuminance analysis result, variations in annual daylight performances. A parametric and regression analysis of the window-to-wall ratio and visible transmittance showed that daylight factor, daylight autonomy increased with window-to-wall ratio and visible transmittance. It can be concluded that this new daylight criteria. useful daylight illuminance, will enable architect to obtain better fenestration design.

A Study on the Window Planning of School Building Using ECOTECT Simulation -By Dynamic Daylight Simulation Using Weather Data- (ECOTECT 시뮬레이션을 활용한 학교건축의 창호계획에 관한 연구 -기상데이터 기반 동적 자연채광 시뮬레이션을 기반으로-)

  • Choi, Woo Ram;Han, Seok Jong;Yun, Young Il
    • KIEAE Journal
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    • v.13 no.6
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    • pp.77-82
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    • 2013
  • Light environment in the school building is one of the most important elements of the plan in order to improve student's ability to learn and the healthy growth. Thus, the window plan of the school building is a great addition to improve environmental-friendly performance through the daylight control. Daylight is highly beneficial for improving the indoor environmental quality and reducing building energy consumption, daylighting applications are scarcely considered, especially during the school building design process, because of lack of previous studies on the light environment of student and complex simulation process. Therefore, daylighting process were performed using ECOTECT, which has various advantage such as easy user interface and simple simulation processes. ECOTECT simulation were performed using weather data. As a result, ECOTECT simulation are performed for daylight autonomy and useful daylight illuminance. Using this data, Window planing is to propose and effective method in the early stages of design.

A Study on the Comparison of the Illuminance Values from Daylight Simulation and Mock-up Experiment for Suitable Application of Lighting Simulation (적합한 조명시뮬레이션 사용을 위한 주광 시뮬레이션과 Mock-up 실험 비교에 관한 연구)

  • Kim, Yu-Sin;Choi, An-Seop
    • Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
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    • v.24 no.1
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    • pp.35-44
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    • 2010
  • Available daylight in inside offers comfortable view environment, and psychological and physical advantages to people in a room. Architectural design has a need for daylight prediction. But it is difficult to predict the illuminance values in daylight system. Using various Daylight simulation software is easy and simple, but we can find different results under the same conditions. This study compares with illuminance values from simulation (Lightscape 3.2, Relux 2007, Radiance 3.9) and Mock-up experiment with a same space and parameter of daylight (location of space and window, date, time and sky condition).

Study on Daylight Inflow Environment Consequent on the Length of Light Shelf and Slat Angle Control for Fostering Visual Environment in Patient Rooms of Hospital - By Dynamic Daylight Simulation Using Weather Data - (종합병원 병실 내 시환경 조성을 위한 광선반 길이 및 Slat각 제어에 따른 자연채광 유입 환경 연구 - 기상데이터 기반 동적 자연채광 시뮬레이션을 기반으로 -)

  • Cho, Ju Young;Lee, Ki Ho;Lee, Hyo Won
    • KIEAE Journal
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    • v.12 no.6
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    • pp.113-121
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    • 2012
  • A hospital is the most important infra-facility of the places which take care of people's body in social environment. There exist several environmental factors in the ways to heal the human body in hospital ward, but this study tried to look into the improvable pleasant sickroom environment with focus on light environment among the factors. In other words, this study aims at the research on proper daylight inflow into sickroom space as basic data for understanding the link between healing environment and natural lighting. In the simulation analysis through this research, this study completed the initial simulation using Autodesk Revit 2011 with focus on two types of individual multi-bed room units of the two general hospitals located in Gwangju City. This study made a simulation analysis of The two multi-bed rooms looking to the west using the weather data on Gwangju district, which is the strong point of ECOTECT2011. Conclusively, looking into the analysis of the simulation model in time of attaching the length of in & outside light shelf, the angle controlling of light shelf, the daylight factor and DA were found to show the tendency to decrease in the numerical value due to the decrease in sunlight inflow as the simulation model moved more toward the room from the window in comparison with the existing analysis of multi-bed rooms. Particularly, this study was able to read that the daylight factor and DA were more decreasing to improve at the light shelf than the existing bedrooms; conclusively, this study judges that the natural lighting simulation analysis could be helpful in improving the healing environment as basic data.

The Illumination Simulation in the Greenhouse using Daylight and Artificial Light for Energy Saving. (에너지 절감을 위한 자연광과 인공광원을 활용한 유리온실 조도 시뮬레이션)

  • Lee, Boong-Joo
    • The Transactions of The Korean Institute of Electrical Engineers
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    • v.66 no.9
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    • pp.1359-1363
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    • 2017
  • In this study, the Relux program was simulated for optimum conditions of daylight and artificial light sources(LED) in the glass greenhouse. From the results of daylight simulation, the optimum design conditions for the glass greenhouse were established which were 90[o] installation angle and higher transmittance. In this case of growing lettuce in the glass greenhouse, the control method of the only artificial light source was compared that of daylight and LED. The result of illumination simulation produced a power consumption effect of 37.2[%] in the summer and 51.9[%] in the winter, respectively. From this results, we propose to suggest that we grow the lettuce in the energy saving glass greenhouse.

A Study on the Comparison of Calculated the Indoor Illuminance Values by Lighting Simulation Softwares for Suitable Prediction About Indraft of Daylight (자연채광 유입에 따른 실내 조도의 적합한 예측을 위한 조명시뮬레이션 소프트웨어 비교 연구)

  • Kim, Yu-Sin;Choi, An-Seop
    • Proceedings of the Korean Institute of IIIuminating and Electrical Installation Engineers Conference
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    • 2007.05a
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    • pp.92-96
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    • 2007
  • Architecture design has need of daylight prediction to utilize daylight efficiently. But it is difficult to predict the exact value of available daylight in buildings. Using various lighting simulation software is not difficulty, but we can find different results under the same conditions. The purpose of this paper is to compare simulation values from various software such as Lumen-micro 2000, Lightscape 3.2, and Relux 2006. The same space and parameters of daylight(location of space and window, date, time, and skylight condition) are considered to conduct various simulation conditions.

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A Study on the Comparison of the Illuminance Values from Lighting Simulation and Mock-up Experiment for Suitable Application of Lighting Simulation (조명시뮬레이션의 적절한 사용을 위한 Mock-up 실험 측정값과 주광 시뮬레이션 결과값 비교에 관한 연구)

  • Lim, Ji-Sun;Jun, Byung-Kuk;Kim, Yu-Sin;Choi, An-Seop
    • Proceedings of the Korean Institute of IIIuminating and Electrical Installation Engineers Conference
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    • 2009.05a
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    • pp.17-20
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    • 2009
  • Available daylight in inside offers comfortable view environment, and psychological and physical advantages to people in a room. Architecture design has need of daylight prediction for reflection efficiently daylight. But it is difficult to predict the illuminance values in daylight system. Using various lighting simulation software is easy and simple, but we can find different results under the same conditions. This study compares with illuminance values from simulation (Lightscape 3.2, RELUX 2007, RADIANCE 3.9) and Mock-up experiment with the same space and parameter of daylight (location of space and window, date, time and sky condition).

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A Simplified Daylight Prediction Method for Designing Sawtooth Aperture

  • Kim, Kang-Soo;Lee, Jin-Mo
    • Architectural research
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    • v.2 no.1
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    • pp.41-46
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    • 2000
  • The sawtooth skylight is an excellent daylighting concept for the uniform interior illuminance over large working areas. In computer simulation, it is difficult for an architect to get accurate daylight illuminances for the spaces where sawtooth apertures are applied. In this study, daylight prediction algorithms for sawtooth apertures are developed. The flux transfer method is applied for this study to predict daylight illuminances. The simplified equations from this study can be used effectively for preliminary prediction of daylight in sawtooth spaces.

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A study on Daylighting inducement within bedroom of Elderly care facility by light shelf attaching method for Therapeutic environment - By Dynamic Daylight Simulation Using Weather Data - (치유환경을 위한 광선반 부착방법에 따른 노인요양시설 침실 내 자연채광 유입 환경 연구 - 기상데이터 기반 동적 자연채광 시뮬레이션을 기반으로 -)

  • Cho, Ju-Young;Lee, Ki-Ho;Yun, Young-Il;Lee, Hyo-Won
    • KIEAE Journal
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    • v.11 no.6
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    • pp.71-79
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    • 2011
  • There are high recognitions on the importance of comforts in Elderly living environment, but the circumstance is that studies on seniors facility space itself are approached only in planning level, and studies on lighting environment which is significantly associated with the comfort in the indoor environment of seniors where they actually spend the majority of their time are not that active. This study was intended to deduce cozy bedroom environment to which existing elderly care facility can be improved by using light shelf the lighting system with the advantage of being able to serve both as building sun visor and lighting window simultaneously in order to analyze the interior environment of bedroom space of elderly care facility the indoor space where the aged spend the majority of their life and examine the directions for the improvement of existing building lighting system through remodeling and renovation. In this study, lighting performance analysis was done in a way that the windows of the bedroom unit in existing facility were set in southbound direction based on two standard types and were put under initial simulation with the use of Autodesk Revit 2011, and after the simulation results were converted to Green Building Studio gbXML file to be used in ECOTECT, Daylight Autonomy a dynamic simulation and static natural lighting simulation the existing method of calculating daylight factors were deduced through Ecotect Analysis 2011. In conclusion, exiting standard model was found in such a condition that the daylight factors for both type A and type B were above 5% the proper standard value, and required improvement. In case light shelf the natural lighting system was attached, the daylight factor was improved to proper standard value for type A, and also was improved above existing facility for type B.