베네시안 블라인드가 적용된 창호 시스템의 1차 투과율 평가를 위한 에너지 플러스 알고리즘과 DIN EN 13363-2의 분석에 관한 연구Comparison of EnergyPlus Algorithm with DIN EN 13363-2 to Evaluate Solar Transmittance for Glazing System with Venetian Blind
- Other Titles
- Comparison of EnergyPlus Algorithm with DIN EN 13363-2 to Evaluate Solar Transmittance for Glazing System with Venetian Blind
- Authors
- 김동균; 전종욱; 김강수
- Issue Date
- 2011
- Publisher
- 대한건축학회
- Keywords
- 에너지 플러스; DIN EN 13363-2; 일사 투과율; 창호시스템; 레디오시티 계산법; 베네시안 블라인드; EnergyPlus; DIN EN 13363-2; Solar Transmittance; Glazing System; Raiosity Method; Venetian Blind
- Citation
- 대한건축학회논문집, v.27, no.11, pp.373 - 380
- Indexed
- KCI
- Journal Title
- 대한건축학회논문집
- Volume
- 27
- Number
- 11
- Start Page
- 373
- End Page
- 380
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/113839
- ISSN
- 2733-6239
- Abstract
- Recently, the matter of excessive cooling load in buildings is being occurred in summer. This problem is mainly due to uncontrolled solar radiation transmitted to building envelope. To control transmitted solar radiation, shading devices are generally used in buildings. Among shading devices, venetian blind has the advantage to adjust indoor comfort and visual comfort by slat angle control.
This paper is focused on comparisons of calculation methods for solar transmittance, which is used in EnergyPlus and DIN EN 13363-2 for thermal simulation of venetian blind combined with glazing. Generally, total solar transmittance is calculated through correlations of glazing transmittance and venetian blind transmittance. EnergyPlus considers angular dependance for calculating glazing transmittance, and it uses Radiosity Method for blind transmittance calculation. However, DIN EN 13363-2assumed normal incident angle for glazing transmittance and it uses different method for calculating blind transmittance, which is more simplified than EnergyPlus.
Consequently, EnergyPlus algorithms demand more detailed information than DIN EN 13363-2 to calculate solar transmittance of glazing system. Furthermore, EnergyPlus always had higher blind transmittance than that of DIN EN 13363-2, due to consider of inner reflection for venetian blind, However, DIN EN 13363-2 always had higher glazing transmittance than EnergyPlus,because it assumed normal incident angle. As a result, they show similar results for total solar transmittance of glazing system.
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