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A comparative analysis of the simulation results of total window thermal transmittance(Uw) according to the evaluation method - Focused on comparison of the single window simulation results -
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  • Journal title : KIEAE Journal
  • Volume 16, Issue 3,  2016, pp.77-82
  • Publisher : Korea Institute of Ecological Architecture and Environment
  • DOI : 10.12813/kieae.2016.16.3.077
 Title & Authors
A comparative analysis of the simulation results of total window thermal transmittance(Uw) according to the evaluation method - Focused on comparison of the single window simulation results -
Lee, Yong-jun; Oh, Eun-joo; Kim, Sa-kyum; Choi, Hyun-jung; Kim, Yu-min;
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 Abstract
Purpose: The aim of this study is to calculate U-factor of the window using international standard methods and compare quantitative and tendency difference focused on ISO standard 15099 and ISO standard 10077. And the result of ISO standard calculation methods is verified using thermal performance experiment to evaluate applicability of domestic certification system. This study is utilized a basis for activation of domestic window certification system. Method: First, 16 cases are selected that is combined a variety of frame, Glazing, spacer, etc. The selected cases were simulated using WINDOW&THERM based on ISO 15099 and 10077 calculation method. Second, experiment was conducted based on Korean standard condition. Then, it was compared the error of experiment and simulation results. Through this process, ISO 15099 and 10077 calculation methods were evaluated accuracy and utilization. Result: The results show that the difference of ISO 15099 and ISO 10077-2 is maximum 5.4%. The results of comparing U-factor errors based on the Korea standard experiment test found 2.4%. Consequently, it will be possible to combination calculation methods of ISO 15099 and ISO 10077 for a single window.
 Keywords
Fenestration energy consumption efficiency rating system;Total window thermal transmittance;ISO 15099;ISO 10077;
 Language
Korean
 Cited by
 References
1.
ISO, ISO 15099 Thermal performance of windows, doors and shading devices - detailed calculations, 2013

2.
ISO, ISO 10077-2 Thermal performance of windows, doors and shutters - Calculation of thermal transmittance part 2: Numerical method for frames, 2003

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NFRC, NFRC 100 Procedure for Determining Fenestration Product U-Factors, 2004

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