이중 미서기창 창짝간 중공층의 대류 열전달로 인한 상하부 온도차가 결로 방지 성능에 미치는 영향에 대한 연구 (The Influence of Top and Bottom Temperature Difference by Convective Heat Transfer on the Condensation Prevention Performance of Double Sliding Window)

서지정보

· 발행기관 : 한국생태환경건축학회
· 수록지 정보 : KIEAE Journal / 18권 / 3호 / 77 ~ 83페이지
· 저자명 : 이용준, 박지호, 배민정, 오은주, 최경석, 이주희

초록

Purpose: In the case of dual window, which is a characteristic window in Korea, the air layer between the window and the window is formed larger than the scale that can be evaluated by the calculation method suggested by the international standard (ISO). Due to the influence of convective heat transfer in the air layer, The upper and lower surface temperatures are measured differently. In particular, the lower temperature formed in the lower part can not reflect the difference in the current evaluation method. Method: In this study, the temperature difference between the top and bottom of the air layer was confirmed through real experiments, heat transfer analysis of existing methods, and three–dimensional heat & flow analysis. The surface temperature difference due to the convective heat transfer of the air layer between the windows was analyzed for four types of double–glazing glass assemblies with two types of double glazing. Result: As a result, the experimental results showed the lowest surface temperature, and the results of the heat flow analysis showed lower surface temperatures than those of the conventional thermal analysis, so that the analysis method reflecting the convective heat transfer better reflects the tendency of the actual experiment . Therefore, in order to evaluate the dew condensation preventing performance of the dual window more realistically, it is necessary to apply the analytical method which can reflect the temperature difference between the upper and lower parts.

영어초록

Purpose: In the case of dual window, which is a characteristic window in Korea, the air layer between the window and the window is formed larger than the scale that can be evaluated by the calculation method suggested by the international standard (ISO). Due to the influence of convective heat transfer in the air layer, The upper and lower surface temperatures are measured differently. In particular, the lower temperature formed in the lower part can not reflect the difference in the current evaluation method. Method: In this study, the temperature difference between the top and bottom of the air layer was confirmed through real experiments, heat transfer analysis of existing methods, and three–dimensional heat & flow analysis. The surface temperature difference due to the convective heat transfer of the air layer between the windows was analyzed for four types of double–glazing glass assemblies with two types of double glazing. Result: As a result, the experimental results showed the lowest surface temperature, and the results of the heat flow analysis showed lower surface temperatures than those of the conventional thermal analysis, so that the analysis method reflecting the convective heat transfer better reflects the tendency of the actual experiment . Therefore, in order to evaluate the dew condensation preventing performance of the dual window more realistically, it is necessary to apply the analytical method which can reflect the temperature difference between the upper and lower parts.

참고자료

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