• Proceedings of the SAREK Conference
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• 2007.06a
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• pp.33-33
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• 2007

• Proceedings of the SAREK Conference
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• 2007.06a
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• pp.34-34
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• 2007

• Proceedings of the SAREK Conference
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• 2004.06a
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• pp.108-108
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• 2004

• Proceedings of the SAREK Conference
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• 2004.06a
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• pp.94-94
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• 2004

• Proceedings of the SAREK Conference
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• 2005.06a
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• pp.6-6
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• 2005

• Journal of the Korean Wood Science and Technology
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• v.40 no.5
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• pp.319-326
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• 2012

Han-green building is one of the modernized Korean traditional buildings developed by Korea Forest Research Institute. This building was developed to increase the competitiveness of Korean traditional building using state-of-art technologies; hence Han-green building has the inherent characteristics of traditional building such as exposed wood frame in wall. Because of discontinuity in wall by the exposed wood frame, there is a concern on heat-air leaking in terms of energy performance. In this study, air-tightness of Han-green building was evaluated to investigate the influence of gaps between frames and in-fill walls. Blower door test was carried out to evaluate the air-tightness, and air-change rate (ACH50) was evaluated by averaging four set of pressurization and depressurization test. The air-change rate of Han-green house was 5.91 $h^{-1}$. To improve energy performance of Han-green house, thermal infrared images of Han-green house were taken in winter with heating to find out where the heat loss occurred. It was found that the building lost more heat through gaps between frames and in-fill walls rather than through other parts of this building. After covering all the gaps by taping, the blower door test was performed again, and the air-change rate was improved to 5.25 $h^{-1}$. From this analysis, it was concluded that the heated air can leak through the gaps between frames and walls. Therefore, when one designs the post and beam building with exposed frame, the detail design between frame and wall needs to be carefully dealt. However, Han-green building showed relatively high air-tightness comparing with other country research results.

• Atmosphere
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• v.29 no.4
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• pp.417-427
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• 2019

The purpose of this study is to build urban canopy model (Met Office Reading Urban Surface Exchange Scheme, MORUSES) based to Unified Model (UM) by using urban building information data in Seoul, and then to compare the improving urban canopy model simulation result with that of Seoul Automatic Weather Station (AWS) observation site data. UM-MORUSES is based on building information database in London, we performed a sensitivity experiment of UM-MOURSES model using urban building information database in Seoul. Geographic Information System (GIS) analysis of 1.5 km resolution Seoul building data is applied instead of London building information data. Frontal-area index and planar-area index of Seoul are used to calculate building height. The height of the highest building in Seoul is 40m, showing high in Yeoido-gu, Gangnam-gu and Jamsil-gu areas. The street aspect ratio is high in Gangnam-gu, and the repetition rate of buildings is lower in Eunpyeong-gu and Gangbuk-gu. UM-MORUSES model is improved to consider the building geometry parameter in Seoul. It is noticed that the Root Mean Square Error (RMSE) of wind speed is decreases from 0.8 to 0.6 m s^-1 by 25 number AWS in Seoul. The surface air temperature forecast tends to underestimate in pre-improvement model, while it is improved at night time by UM-MORUSES model. This study shows that the post-improvement UM-MORUSES model can provide detailed Seoul building information data and accurate surface air temperature and wind speed in urban region.

• Journal of the Korea Institute of Building Construction
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• v.22 no.5
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• pp.507-518
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• 2022

The purpose of this research is to obtain experimental data for developing a structural design of an external insulation system by evaluating the shear performance of a composite insulation system according to the adhesive type. The shear performance of the composite insulation system was experimentally evaluated by considering a simultaneous placement method, full and spot/edge coverage using adhesive mortar. As a result of the test, the shear strength of simultaneous placement and full coverage method was almost similar, the spot/edge coverage method was about 80% of them. Also, the simultaneous placement method is considered to be constructively advantageous when applied as an external insulation system to a high-rise building compared to using an adhesive mortar.

• Korean Journal of Air-Conditioning and Refrigeration Engineering
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• v.24 no.4
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• pp.343-350
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• 2012

The major goal of building energy management is to minimize the energy consumption while maintaining the comfortable environment condition. Nowadays building energy management to save HVAC energy and so on is the most critical issue for existing building service branch with high efficiency equipments and their optimal operation. The effects on the building energy savings of the building equipment retrofit and the improvement of its operation method, especially in the field of HVAC system, were analyzed in this study for domestic small and/or medium sized buildings. Over 8.8% of energy saving was achieved compared withe total energy consumption in commercial building. These results could be used for reasonable maintenance and efficient management of the various building service equipments and related systems.

• 한국태양에너지학회:학술대회논문집
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• 2008.04a
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• pp.129-134
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• 2008

Generally the window of the building is an objective of mining and having a distant view and also for a circulation it will can open and shut because becomes the structure insulation, the meat detailed drawing it does a very difficult portion, it is. And, recently the use of heat recovery ventilator has increased rapidly for improvement of air Quality and energy saving in building. But, the high efficient heat exchange will be more increasable than water vapors which were only occurred residential active. Purpose of this study is measurement of thermal performance about heat-recovery system integrated window. The result of the window thermal resistance is 1.80 $W/m^2K$ by KS F 2278. Air tightness is 5.96 m3/m2h at 4 Pa by KS F 2292.