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자연풍의 변동 특성을 이용한 쾌적 공조시스템에 관한 연구
강기남(Kang Ki-Nam),송두삼(Song Doo-Sam),함희정(Ham Hee-Jung) 대한건축학회 2007 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.27 No.1
Recently the demand for cooling is rapidly increasing in Korea due to climate change resulting from global environmental changes and the residential culture centered on apartment houses. Furthermore, there is a concern for increasing energy consumption due to the quickly rising demands for comfortableness of air conditioning with the increasing expectations on quality of life of occupants in rooms. The existing air conditioning system can not satisfied the human thermal need as compared to the natural breeze in country side where located near mountains and river side. What is short in air conditioning? The natural wind fluctuates all the time in all directions and we can not recognize its behaviors. If the fluctuation characteristics of natural wind would be generated with existing cooling system, it could be a comfortable wind for us. In this study, the characteristics of natural wind will be analyzed through chaotic analyzing methods and will be compared to the mechanical wind. In this paper, the field measurement for natural wind which accomplished at near mountain in summer will be reported. Moreover the characteristics of mechanical wind will be analyze through laboratory experiment. If fluctuation of air flow would be generated by a chaotic theory, it could be a comfortable wind for us.
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강기남(Kang Ki-Nam),송두삼(Song Doo-Sam),함희정(Song Doo-Sam) 대한건축학회 2008 대한건축학회논문집 Vol.24 No.6
The purpose of this study is to propose a new cooling system that can improve the problems of conventional cooling systems such as constant and monotonous air-flow, lower temperature than the ambient conditions, and energy efficiency. To improve these drawbacks, this study focuses on the dynamic characteristics of natural wind and the use of these characteristics as a control strategy of indoor cooling systems. In this paper, based on the field measurements, the characteristics of natural wind fluctuation are analyzed by the Fast Fourier Transform(FFT) analysis. The correlations between natural wind and thermal sense of the human subject can be found by using the PSD analysis, and the relationships can be modeled as a slope of the low frequencies of the natural wind spectrum, β-value. It is expected that the proper selection of β-value can simulate a comfortable wind and will improve the energy efficiency of cooling systems.
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자연풍의 변동 특성을 이용한 쾌적 공조시스템에 관한 연구
강기남(Kang Ki-Nam),송두삼(Song Doo-Sam),함희정(Ham Hee-Jung),서국정(Seo Kook-Jeong),윤인철(Yun In-Cheol) 한국건축친환경설비학회 2007 한국건축친환경설비학회 학술발표대회 논문집 Vol.- No.-
Recently the demand for cooling is rapidly increasing in Korea due to climate change resulting from global environmental changes and the residential culture centered on apartment houses. Furthermore, there is a concern for increasing energy consumption due to the quickly rising demands for comfortableness of air conditioning with the increasing expectations on quality of life of occupants in rooms. The existing air conditioning system can not satisfied the human thermal need as compared to the natural breeze in country side where located near mountains and river side. What is short in air conditioning? The natural wind fluctuates all the time in all directions and we can not recognize its behaviors. If the fluctuation characteristics of natural wind would be generated with existing cooling system, it could be a comfortable wind for us. In this study, the characteristics of natural wind will be analyzed through chaotic analyzing methods and will be compared to the mechanical wind. In this paper, the field measurement for natural wind which accomplished at near mountain in summer will be reported. Moreover the characteristics of mechanical wind will be analyze through laboratory experiment. If fluctuation of air flow would be generated by a chaotic theory, it could be a comfortable wind for us.
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