에어컨 소음 음질특성 변화에 따른 주관적 반응

심명희(Myung Hee Sim),유진(Jin You),정충일(Choong Il Jeong),전진용(Jin Yong Jeon) 한국소음진동공학회 2008 한국소음진동공학회 학술대회논문집 Vol.2008 No.11

자치단체의 온실가스 감축이행 평가를 위한 탄소지수 활용 방안에 관한 연구

윤용상(Yoon Yong-Sang),심명희(Sim Myung-Hee),권가란(Gwon Ga-Ran) 한국건축친환경설비학회 2014 한국건축친환경설비학회 논문집 Vol.8 No.1

As frequent natural disasters are under the influence of climate change, there is a growing interest of the international community in the issues of climate change. The United Nations makes efforts to reduce the emissions of greenhouse gases regarded as the main culprit of global warming, by 50% by 2050 in relation to 1990 levels. In responding to the efforts of the international community for greenhouse gas reduction, our government set the 30% reduction target in greenhouse gas emissions compared to the national greenhouse gas emission projections of 2020 (BAU) and established measures for the reduction plan. However, objective evaluation criteria for the greenhouse gas reduction commitments are still absent. Therefore, this study intended to derive correlations among greenhouse gas emissions projections for each of the local governments, greenhouse gas reduction obligations of the year and actually reduced greenhouse gas emissions. Also, represented in carbon reduction indices, the results enabled the extent of the greenhouse gas reduction commitments made by the country and local governments to be determined, and the comparison and evaluation for the reduction target to be performed.

국내 지역기후와 연간 난방에너지요구량의 상관관계 분석 연구

윤용상(Yoon, Yong-Sang),김은진(Kim, Eun-Jin),이성진(Lee, Sung-Jin),심명희(Sim, Myung-Hee) 대한건축학회 2014 대한건축학회논문집 Vol.30 No.1

This study emphasizes the correlation between the climate characteristics and annual energy demand in the region where passive houses are constructed, by analyzing the annual heating energy demand according to local climatic conditions for domestic passive houses (E+Green Home) using the PHPP simulation program. 7 regions of Korea were targets of the simulation (Yongin, Paju, Seoul, Andong, Kwangju, Busan, and Tongyoung). The heat energy required declined by about 16.7% when the outdoor temperature rises by an average of 1 ℃ and the heating load declined 1.4 W/㎡ . This corresponds to about 14% of the maximum heating load, which is 10 W/㎡, that is required by Passive house. Also, as a result of comparing Yongin (16.8 ㎾h/㎡·yr) and Tongyoung (3.6 ㎾h/㎡·yr), the yearly heat energy required showed about 4.7 times difference. Moreover, to reflect in details about the characteristics of the region climate in the building energy saving design criteria, there is a need to separate the current 3 regions into a minimum of at least more than 7 regions. From the results above, it is found that the local climatic conditions should certainly be taken into account when buildings at a level of passive houses are designed. Besides, since the annual heating energy demand for a passive house varies greatly with the local climate characteristics, the passive house design guidelines for insulation and ventilation performance depending on the region should be presented.

내부 발열량과 창호 성능이 건물에너지 요구량에 미치는 영향에 대한 연구

윤용상(Yong Sang Yoon),손선우(Sun Woo Son),권가란(Ga Ran Gwon),심명희(Myung Hee Sim),신재규(Jae Gyu Shin) 대한설비공학회 2012 대한설비공학회 학술발표대회논문집 Vol.2012 No.6

This study analyzed the interrelation of effects that the proportion between window performance and window area and the window performance and inner heating conditions in commercial building have on the energy demand in building with using EnergyPlus, a building energy simulation tool. The conclusions identified through this study are as follows: There was no any specific type interrelation between the proportion of window area and the energy demand according to window performance, but it was found that the bigger the proportion of window area, the higher the sensitivity depending on SHGC. In addition, as for the interrelation between the inner heating value and the energy demand according to window performance, it was analyzed that the bigger the inner heating value, the higher the impact of the SHGC of window. In summary, the energy demand of building is influenced by a variety of variables including window area ratio, window performance and building operation characteristics, so a rational design plan on the relevant project should be identified by using an integrated energy simulation-possible tool from the planning phase of building.

커튼월 건물의 에너지 성능 특성에 관한 연구

윤용상(Yoon, Yong-Sang),최원기(Choi, Won-Ki),심명희(Sim, Myung-Hee) 대한건축학회 2013 대한건축학회논문집 Vol.29 No.7

Most of the newly built office buildings contains curtain wall structures with a high window-to-wall ratio, which raise concerns over the excessive energy consumption due to the glass with a relatively high heat transmission coefficient. However, when an office building has high insulation performance as high as the walls of residential buildings due to larger cooling load compared to heating load and the high heating value generated within the building, the reduction of conductive heat loss can cause an increase in energy demand. Therefore, in this study, fundamental research on the characteristics of energy performance based on the conditions of glazing performance, window area ratio and internal heat generation when planning office buildings, was carried out and the results are as follows. An increase in internal heating value caused slight decrease in heating energy while increasing significantly cooling energy demand. Also, low heat transmission coefficient of glazing reduced conductive heat loss, increasing the energy demand. As window area ratio decreased at SHGC greater than 0.3, the energy demand was also reduced. In the future, reasonable standards for the glazing performance (U-factor, SHGC, VLT) to reduce the energy consumption in office buildings are to be derived through the analysis of the energy demands based on more diverse building sizes, and also, using the standards, glazing design guidelines to afford appropriate selection of glazing in the planning stages of buildings should be developed.

지역의 기후특성이 반영된 외피의 열적 성능에 관한 연구

윤용상(Yoon Yong-Sang),권가란(Gwon Ga-Ran),심명희(Sim Myung-Hee) 한국건축친환경설비학회 2014 한국건축친환경설비학회 논문집 Vol.8 No.2

In this study, we analyzed the performance of the envelopes (average heat transmission coefficient and energy transmittance of outer walls and window systems) of E+ Green Homes to meet the heating energy requirements of 15 kWh/㎡·yr under different climate conditions in 7 regional areas in Korea, and derived the correlation between climate and envelope performance to propose its thermal performance with regional climate variabilities reflected. The correlation analysis of the heating energy requirements and envelope performance indicated that the heating energy conditions required for E+ Green Home can be satisfied in the areas with low heating energy requirements by choosing a high heat transmission coefficient for outer walls and glazing systems or a low energy transmittance for glazing systems. Besides, we derived heating degree hour, heating energy requirements, and average heat transmission coefficient of envelopes from average outside temperature of heaters, and as a result, calculated the thermal insulation performance appropriate to the climate characteristics of specific regional area. In the future, to strengthen energy conservation as efficiently as E + Green Homes, it is required to study the correlation between heating energy requirements and thermal insulation performance in areas other than the 7 regional areas, and to consider whether it is possible to apply the correlation of outside air temperature and average heat transmission coefficient to the buildings with different shape and size other than ones applied in the present study.