http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
부산지역에 적합한 시간당 수평면 전일사량 산출모델의 비교분석
김기한(Kee Han Kim),오기환(Kie-Whan Oh) 한국태양에너지학회 2013 한국태양에너지학회 논문집 Vol.33 No.5
Hourly horizontal global solar radiation has been used as one of significant parameters in a weather file for building energy simulations, which determines the quality of building thermal performance. However, as about twenty two weather stations in Korea have actually measured the horizontal global sola radiation, the weather files collected in other stations requires solar data simulation from the other meteorological parameters. Thus, finding the reliable complicated method that can be used in various weather conditions in Korea is critically important. In this paper, three solar simulation models were selected and evaluated through the reliability test with the simulated hourly horizontal global solar radiation against the actually measured solar data to find the most suitable model for the south east area of Korea. Three selected simulation models were CRM, ZHM, and MRM. The first two models are regression type models using site-fitted coefficients which are derived from the correlation between measured solar data and local meteorological parameters from the previous years, and the last model is a mechanistic type model using the meteorological data to calculate conditions of atmospheric constituents that cause absorption and scattering of the extraterrestrial radiation on the way to the surface on the Earth. The evaluation results show that ZHM is the most reliable model in this area, yet a complicated hybrid simulation methods applying the advantages of each simulation method with the monthly-based weather data is needed
영국 BREEAM과 G-SEED와의 비교분석을 통한 G-SEED 인증기준의 개선방안 도출
김기한(Kim, Kee Han),구성한(Koo, Sunghan),조동우(Cho, Dongwoo),채창우(Chae, Chang-U) 대한건축학회 2018 대한건축학회논문집 Vol.34 No.9
The improvements of G-SEED standards was studies in this research by comparing the composition, rating scores, and standards, including categories, issues and criteria of BREEAM in the UK. In this research, it was found that both certification systems had very similar composition and rating system, however, there was slight difference in the points of emphasizing the standards due to the differences in social awareness of green buildings in each country. As a result of the detailed comparison of both standards, in addition, it was found that almost half of criteria had different evaluation approaches such as evaluation methods and scopes between both standards even though they had same evaluation objectives; some of the differences were due to the social or cultural differences between the countries, and the others were not. Through the research, we were able to derive some criteria that need for improvements of G-SEED considering the domestic conditions in Korea.
공동주택에서의 플러쉬아웃 현황 및 개선방향을 위한 연구
김기한(Kim, Kee Han),이기용(Lee, Ki Yong),박준석(Park, Jun-Seok) 대한건축학회 2015 대한건축학회논문집 Vol.31 No.8
Volatile organic compounds in buildings from finishing materials, adhesives, built-in furniture, etc. can cause headaches, atopic dermatitis, etc. for occupants in the buildings. To mitigate this, the Korean government has obligated to flush out the buildings after new construction and before occupancy since 2011. In this study, the current status of performing flush-out in multi-family residential buildings in Korea were analyzed, and its improvement would be proposed. At first, a questionnaire survey was conducted to figure out the current status of flush-out performances targeting a number of construction companies who have already constructed multi-family residential buildings with compliance of the obligation. Through the analysis of this survey, several conditions that need to be improved for flush-out were identified. Secondly, the identified conditions were evaluated in varying conditions using a simulation program to figure out an effective way of performing flush-out rather than as it is. As a result, a flush-out performance period with an appropriate supply air volume, and indoor temperature and humidity were identified to be improved through the survey, and it revealed through the simulation that the flush-out should be performed at least 14 days to reduce the indoor air pollution more than a half.
동적 건물에너지 시뮬레이션을 이용한 G-SEED 에너지성능 평가지침 도입 방안에 관한 기초연구
김기한(Kim, Kee Han),채창우(Chae, Chang-U),조동우(Cho, Dongwoo) 대한건축학회 2018 大韓建築學會論文集 : 構造系 Vol.34 No.10
In this paper, a fundamental study for developing and introducing a new assessment method of the "Energy Performance" in G-SEED that uses dynamic building energy simulations was conducted by comparing and analyzing the corresponding issues of domestic and foreign green building certification systems. The most significant part of the new assessment method to be developed was a development of a modeling guideline for a reference building using dynamic building energy simulations. In this paper, the composition and detailed contents of the guideline was created to comply with domestic energy codes. In addition, one of the most influential part of the result in the simulations, the 24-hour building operation schedule for a reference building, was created considering the equity with the ECO2 program that is the evaluation tool of one of the current assessment methods in the "Energy Performance". In order to improve the completeness of this guideline, it is necessary to continue the process of supplementation in the future, however, this paper is expected to be of great significance as the beginning of the research.
수평면 전일사량 산출모델이 일사열취득계수 및 창면적비를 고려한 건물 에너지 성능분석에 미치는 영향
김기한(Kee Han Kim),오기환(John Kie-Whan Oh) 한국태양에너지학회 2014 한국태양에너지학회 논문집 Vol.34 No.1
Solar applications analysis and building energy performance depend on the quality of the solar resource data available. Unfortunately, most of the weather stations do not measure solar radiation data in Korea, as a reason many researchers have studied different solar radiation estimation models and suggested to apply them to various locations in Korea. In addition, they also studied the impact of hourly global solar radiation on energy performance of an office building by comparing the simulated building energy consumptions using four different weather files, one using measured, and three estimated solar radiation from different models, which are Cloud-cover Radiation Model(CRM), Zhang and Huang Model(ZHM), and Meteorological Radiation Model (MRM), and concluded that there was some impact on energy performance of the building due to the using different solar radiation models. However, the result cannot be applied to all other buildings since the simulated office building for that study only used limited building characteristics such as using fixed values of solar heat gain coefficient (SHGC) and window-to-wall ratio(WWR), which are significant parameters related to solar radiation that affect to the building energy consumptions. Therefore, there is a need to identify how the building energy consumption will be changed by varying these building parameters. In this study, the impact of one measured and three estimated global solar radiation on energy performance of the office building was conducted taking account of SHGC and WWR. As a result, it was identified that the impact of four different solar radiation data on energy performance of the office building was evident regardless SHGC and WWR changes, and concluded that the most suitable solar models was changed from the CRM/ZHM to the MRM as SHGC and WWR increases.
Amina Irakoze(아미나 이라코제),Kee Han Kim(김기한),Lee Young-A(이영아) 대한건축학회 2019 대한건축학회 학술발표대회 논문집 Vol.39 No.2
This study aimed at the assessment of ceiling depth impact on skylight energy performance through OpenStudio integrated Radiance and EnergyPlus program. A ceiling as deep as 1.5 to 3m was analyzed for skylight to roof ratio from 1% to 25%. Through a parametric analysis, the study concluded that 8%, 9%, 10% and 11% skylight to roof ratio were optimal in terms of total building energy consumption for a ceiling depth of 1.5m, 2m, 2.5m and 3m respectively. In addition, the results showed that the usually recommended 5% skylight to roof ratio was only efficient when no ceiling depth was included in the simulation model. Therefore, study induced that ceiling depth was crucial in the analysis of skylight and should not be excluded for the simplicity of simulation model.