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지중공간(地中空間)의 자연실온(自然室溫) 추정(推定)에 관(關)한 연구(硏究)
이시웅,손장열,Lee, Shi Woong,Shon, Jang Yeul 대한설비공학회 1988 설비저널 Vol.17 No.3
The purpose of this paper is to research the estimations of the indoor natural temperature in a case of the earth sheltered space and the 1st basement room in comparison with a conventional housing. The result of this study can be summerized as follows: The natural temperature of the earth sheltered house Summer : $${\theta}es=27.0+1.65sin(2{\pi}/24{\cdot}T-1.34)$$ Winter : $${\theta}ew=11.5+1.15sin(2{\pi}/24{\cdot}T-1.61)$$ The natural temperature of the 1st basement space Summer : $${\theta}us=25.5+1.00sin(2{\pi}/24{\cdot}T-1.72)$$ Winter : $${\theta}uw=13.9+1.10sin(2{\pi}/24{\cdot}T-2.29)$$ From the results of the stated above, we can calculate the cooling and heating load in the earth sheltered house and the underground space exactly and easily at Taejeon City.
정정호(Jeong, Jeong-Ho),손장열(Shon, Jang-Ryul),김정중(Kim, Jung-Joong) 한국소음진동공학회 2007 한국소음진동공학회 논문집 Vol.17 No.4
Following the 2002 World-Cup held in Korea, studies have been actively conducted on plans to utilize all-weather stadiums of fine figures, where large-scale spaces are available for various utilizations. In Japan, dome-type stadiums have been built and are utilizing across the whole nation not only for sports events but also variety of other large-scale events. PTFE(poly tetra fluoro ethylene) is one of the membrane material mainly used for the outer ceiling surface of membrane structures. However, there has not been enough research on the acoustical properties of PTFE membrane material which has been widely used in the multi-purpose stadiums. In this study, air permeability values and sound absorption coefficient of PTFE membrane materials were measured and evaluated in the gymnasium. From the results of measurements of sound absorption coefficient and air permeability of inner membrane materials, it was found that the sound absorption coefficient was good in the air permeability range of $5{\sim}15\;cc/cm^2/s$. Also the relation ship between air permeability and sound absorption coefficient was very high and the sound absorption coefficient was the highest in the range of $6{\sim}9\;cc/cm^2/s$. Secondly, an analysis on the measurements sound absorption characteristics of inner membrane material reveals that the overall sound absorption coefficient was stabilized(higher than 0.5 throughout the whole frequency bands) when the air space behind the membrane material was deeper than 600 mm. When PTFE sound absorptive membrane material was installed in the ceiling of gymnasium, it was confirmed that sound absorptive membrane material can reduce reverberation and increase speech intelligibility in the gymnasium.
이승언(Lee Seung Eon),손장열(Shon Jang Yeul) 한국태양에너지학회 1992 한국태양에너지학회 논문집 Vol.12 No.2
본 연구는 동계 외기온 데이타의 시각별 변동특성을 파악하기 위하여 연변동 성분 및 기간변동 성분을 제거한 일변동 성분의 매 시각별 외기온의 주파수 특성에 대해서 검토하였으며 외기온 데이타의 수식화의 가능성을 제시하였다. Identifying characteristics of heating and cooling systems requires estimation of thermal load of specific time interval, especially in cases that its system is operated intermittently, by using thermal storage, of in a partial load condition. Estimating the thermal load, however, needs to forecast hourly weather data variation. Hence, this paper attempts to examine characteristics of hourly our door temperature variation as a preliminary research for the mathematical modeling of the hourly weather variation.<br/> Speculating characteristics of daily minimum and maximum temperature occurances, hourly outdoor temperature variation, and daily temperature differences in the increasing range (07h~15h) and decreasing range (15h~07h), we were able to analyze changing patterns of daily temperature differences in each range in terms of daily solar amount, cloud ratio, and other weather data.<br/> Results from the multiple regression analysis enables us to conclude that daily differences in the increasing range are strongly affected last night temperature itself while the other range's differences are influenced by many weather data, which are solar amount, the variation of cloud, and the maximum temperature of the previous day.
주상복합건물의 공기식 열교환기 사용실태 및 만족도 조사에 관한 연구
김상민(Sang-Min Kim),박용후(Yong-Hoo Park),손장열(Jang-Yeul Shon) 한국생활환경학회 2005 한국생활환경학회지 Vol.12 No.1
Air-to-air heat recovery ventilator widely used in high-rise apartments in Korea has relatively short history and is not operated by experts of HVAC system. Therefore, survey and field measurement of air flow rate were performed, since the investigation about effective use of HRV system is required in this circumstance. Most respondents of the survey replied that daily operation time was six hours per day operation mode was medium. Regarding the feeling of satisfaction, the value was 3.931 in evaluation scale 1~6, indicating that they are relatively satisfied with HRV system. Moreover, the result of measured air flow rate was a little lower than that of recommended air flow rate, and mean air exchange rate appeared to be 0.38ACH.