Column 1 - 건물에너지 해석프로그램을 이용한 공공기관 업무용건물 에너지성능 개선을 위한 사례연구

송수원,Song, Su-Won 에너지절약전문기업협회 2012 esco Vol.75 No.-

건물에너지 해석프로그램을 이용한 공공기관 업무용건물 에너지효율등급 개선에 관한 사례연구

송수원(Song, Su-Won),양희문(Yang, Hee-Moon),이진호(Lee, Jin-Ho),문유정(Mun, Yu-Jung) 대한건축학회 2011 대한건축학회논문집 Vol.27 No.11

The purpose of this study is to analyze the effect of energy conservation measures (ECMs) and potential annual energy savings for improving the building energy performance rating of a public office building, using a dynamic energy simulation program such as eQUEST 3.64 (DOE-2.2 ver.). The ECMs proposed in this study includes super insulation, high-performance window, daylighting with dimming control, light-emitting diode (LED) lights, a dedicated outdoor air system (DOAS), enthalpy heat recovery systems, water circulation pumps for ground-source heat pump (GSHP) systems, air-side economizer control for a communication room, and so on. As a result, it was identified that the primary annual energy savings of the proposed design with the ECMs can be achieved by 45.3% and 39.6 % when compared to the actual baseline design that doesn’t include the ECMs and the 1st building energy performance rating (300 kWh/m2-yr) regulated by Korean government, respectively.

초등학생의 인지적, 정서적 관용과 관용적 행동의 관계

송수원(Song Su Won),김은경(Kim Eun kyung) 고려대학교 교육문제연구소 2015 敎育問題硏究 Vol.28 No.3

본 연구의 목적은 초등학생의 관용적 행동이 관용의 인지적, 정서적 요인과 어떠한 관계가 있는지 살펴보는 데에 있다. 선행 연구들을 바탕으로 관용의 인지적 요인인 관용에 대한 지식, 관용과 관련된 판단력, 관용의 정서적 요인인 공감적 각성, 공감적 관심을 변수로 상정하고 이러한 변수들이 관용적 행동과 어떠한 관계가 있는지 분석하였다. 이를 위하여 서울특별시, 인천광역시, 경기도 소재의 초등학생을 대상으로 총 510명에게 자기보고식 검사를 실시하여 최종 499부의 자료를 가지고 빈도 분석, t 검정, 상관분석, 중다회귀분석을 수행하였다. 그 결과 첫째, 관용의 인지적 요인인 관용에 대한 지식 수준의 차이에 따른 관용적 행동에 차이가 없는 것으로 나타났다. 둘째, 관용의 인지적 요인인 관용과 관련된 판단력 수준을 인습 이전 수준과 인습 수준 집단으로 나누었을 때, 인습 수준 집단이 관용적 행동을 유의하게 더 많이 하는 것으로 드러났다. 셋째, 관용의 정서적 요인인 공감적 각성과 공감적 관심은 관용적 행동과 상관이 있으며, 관용적 행동에 유의한 영향을 미치는 것으로 밝혀졌다. 아울러 본 연구의 결과의 시사점과 함께 바람직한 실제 관용교육의 방안에 대하여 논의하였다. This study was conducted to investigate how cognitive and emotional aspects of tolerance are related to tolerant behavior. Based on previous research, tolerance was classified with three sub-areas such as cognitive factors, emotional factors, and tolerant behaviors. To deal with the study, a self-report survey was answered by 510 elementary school students in Seoul, Gyeonggi, and Incheon. The final data of 499 students were analyzed by frequency analysis, t-test, correlation and multiple regression analysis. The results were as follows: First, there was no significant difference in tolerant behavior according to the knowledge of tolerance. Second, when the level of moral judgement was divided by pre-conventional level group and conventional level group, the moral behavior of conventional level was higher than that of pre-conventional level. Finally, the empathic arousal and empathic concern were significantly correlated and predicted moral behavior. This study would give implications to develop educational programs to foster tolerance for elementary school students.

수평면 전일사량 측정데이터 보정에 관한 실험적 연구

송수원(Song Su-won) 한국태양에너지학회 2010 한국태양에너지학회 논문집 Vol.30 No.5

A Precision Spectral Pyranometer (PSP) is mainly used as a reference to calibrate other pyranometers due to its high accuracy and sensitivity in response to the spectrum wavelength range of 0.285? to 2.8?, while the sensitivity of photovoltaic-type Li-Cor pyranometer is limited within a certain spectral range from 0.4? to 1.1?. In this study, two Eppley PSPs(PSP₁ and PSP₂) were first compared to the calibrated Eppley PSPs from National Renewable Energy Laboratory (NREL), resulting in two linear correction factors based on the comparison between the logger output (V) from the test PSP and the solar radiation (W/m2) from the NREL PSP. The Li-Cor pyranometer used in this study was then corrected based on the comparison of measured solar radiation (W/㎡) from the corrected PSP₁ and the Li-Cor pyranometer. In addition, instrument scale corrections were also performed for the PSPs and the Li-Cor from the transmitter to the data logger. From the comparisons, a linear correction factor (1.0214) with R=0.9998 was developed for the scale correction between PSP₁ and PSP₂, while the Li-Cor pyranometer has a scale(1.0597) and offset (32.046) with R=0.9998 against PSP₁. As a result, it was identified that there were good agreements within ± 10W/㎡ between Eppley PSP₁ vs. PSP₂ solar radiation and within ± 20 W/㎡ between PSP₁ vs Li-Cor solar radiation after the empirical scale corrections developed in this study.

자연환기 및 공기청정기 가동에 따른 실내공기질 분석

송수원(Suwon Song),유정연(JungYeon Yu),조정식(ChungSik Cho),이윤규(YunGyu Lee) 대한설비공학회 2019 대한설비공학회 학술발표대회논문집 Vol.2019 No.-

This study analyzed the concentration reduction effects of particulate matters (e.g., PM10 and PM2.5) and indoor air pollutants (e.g., CO2, TVOC, Radon) according to the operation conditions of an air-cleaner and natural ventilation through windows in a small office. As results, the daily average concentrations of PM10 and PM2.5 decreased into 0.2 μg/m3 from 1.6 μg/㎥ when the air-cleaner was in operation along with all windows closed during holidays. Under the conditions of natural ventilation with the windows opened during weekdays, the concentrations of Radon significantly decreased up to 0.2 pCi/ℓfrom 3.7 pCi/ℓ. However, the daily average concentrations of PM10 increased almost double up to 74.7 μg/㎥ from 30.5 μg/㎥ and PM2.5 increased up to 40.9 μg/㎥ from 21.5 μg/㎥ as well even though the air-cleaner was in operation. Consequently, when it comes to improving indoor air quality, it is important to timely operate ventilation (natural or mechanical) systems as well as air-cleaner(s) depending on the concentrations of measured indoor and outdoor air pollutants.

초등학생의 성별 및 학년에 따른 관용수준 차이 분석

송수원 ( Su Won Song ),김은경 ( Eun Kyung Kim ) 한국초등교육학회 2015 초등교육연구 Vol.28 No.1

본 연구는 초등학생의 관용수준 현황을 살펴보기 위하여 관용의 인지적, 정서적 요인과 관용적 행동을 성별 및 학년에 따라 분석하는 것을 목적으로 한다. 선행 연구들을 토대로 관용에 대한 지식, 관용과 관련된 판단력을 관용의 인지적 변인으로, 공감적 각성, 공감적 관심을 관용의 정서적 변인으로 상정하고 이러한 변인들과 관용적 행동이 성별과 학년에 따라 어떠한 차이를 보이는지 알아보았다. 이를 위하여 서울특별시, 인천광역시, 경기도 소재의 초등학생 총 543명에게 자기보고식 검사를 실시하였다. 최종적으로 510부의 자료를 두 독립표본 t 검정, 일원분산분석, Fisher의 LSD 검정을 이용하여 분석하였다. 첫째, 우리나라 초등학생은 관용에 대한 지식과 관용적 행동은 발달하였으나 관용과 관련된 판단력, 공감적 각성과 공감적 관심은 부족한 것으로 나타났다. 둘째, 관용에 대한 지식, 공감적 각성, 공감적 관심은 여학생이 남학생보다 높게 나타났고 관용과 관련된 판단력, 관용적 행동은 유의미한 성차를 보이지 않았다. 셋째, 관용에 대한 지식은 초등학교 4학년이 2학년보다 높은 것으로 나타났고, 공감적 각성, 공감적 관심, 관용적 행동은 4학년이 2학년과 6학년보다 높은 점수를 보였으며, 관용과 관련된 판단력에서는 유의미한 차이가 발견되지 않았다. 본 연구의 결과를 바탕으로 관용교육의 실제 및 후속 연구에 대한 시사점을 논의하였다. This study was conducted to investigate the tolerance of elementary school students according to gender and school year. Based on previous research, tolerance was classified with three sub-areas such as cognitive factors, emotional factors, and tolerant behaviors. Cognitive variables of tolerance comprised of knowledge of tolerance and moral judgment, while emotional variables of tolerance consisted of empathic arousal and empathic concern. A self-report survey was answered by 543 elementary school students in Seoul, Gyeonggi, and Incheon. The final data of 510 students were analyzed by two independent samples t-test and one-way ANOVA. Fisher`s LSD was used for the post-hoc comparison of ANOVA. First, it was found that the knowledge of tolerance and tolerant behavior were higher than moral judgment and empathy in elementary school students. Second, knowledge of tolerance, empathic arousal and empathic concern of female students were higher than those of male students. However, little gender difference was found in moral judgment and tolerant behavior. Finally, The knowledge of tolerance of 4th graders was higher than that of 2nd graders. The empathic arousal, empathic concern and tolerant behavior of 4th graders were higher than those of 2nd and 6th graders. There was no significant difference in moral judgment according to school year. This study would give implications to develop educational programs to foster tolerance for elementary school students.

외부 수평차양 및 수직차양의 돌출비에 따른 하절기 수직창면의 직달일사량 및 전일사량 분석

송수원(Song, Suwon),조동우(Cho, Dong-Woo) 대한건축학회 2015 대한건축학회논문집 Vol.31 No.4

It has recently been concerned about cooling loads due to solar radiation through windows for commercial buildings. External shadings can be used to effectively reduce the direct and global solar radiation on windows. This paper analyzed the direct and global solar radiation facing on a vertical window according to the projection factors(PF) of external horizontal and vertical shadings in its orientation for a clear day in Summer and then proposed Solar Heat Gain Coefficient(SHGC) multipliers for such external horizontal and vertical shadings.

주거용 건물 지열원 멀티 히트펌프시스템의 지열순환펌프 가변유량제어에 관한 실증연구

송수원(Suwon Song) 대한설비공학회 2013 설비공학 논문집 Vol.25 No.8

The purpose of this study is to propose an enhanced variable-speed control method of ground-water circulation pumps using inlet and outlet ground-water temperature difference and analyze its effect for the ground source multi-heat pump system installed in a single-family house. As a result, it has shown to significantly reduce the electricity use of ground-water circulation pump and improve overall system Coefficient of Performance (COP) due to the proposed variablespeed control under partial load conditions after oversized and inefficient single-speed pump retrofit.

건물에너지 모니터링 및 시뮬레이션을 활용한 신축건물의 에너지성능평가

송수원(Suwon Song) 대한설비공학회 2008 설비공학 논문집 Vol.20 No.3

The performance evaluation of a new building is becoming more important because efficient design alone is often not sufficient to deliver an efficient building. However, there is a lack of standard evaluation methods to measure the energy performance of a new construction that has Energy Conservation Design Measures (ECDMs). This study presents an enhanced method based on calibrated whole-building simulation for evaluating the energy performance of new commercial buildings and demonstrates its use using a case-study building, including: an Energy Use Index (EUI) comparison with sub-metered data and an evaluation of the performance of specific ECDMs. The use of this method has determined that the case-study building was shown to use approximately 47% less energy than the base-case building that has the same shape and function as the case-study building (i.e., calibrated as-built simulation model), but doesn't include the simulated ECDMs.

어린이집 및 노인요양시설 환기시스템 가동에 따른 실내공기질 분석

송수원(Suwon Song),유정연(JungYeon Yu),이윤규(YunGyu Lee) 대한설비공학회 2019 대한설비공학회 학술발표대회논문집 Vol.2019 No.11

본 연구에서는 다중이용시설인 어린이집 및 노인요양시설을 대상으로 환기시스템 가동에 따른 실시간 실내공기질 모니터링데이터 (CO₂, TVOC, Radon)를 분석하였다. 결과적으로 분석 대상 어린이집의 경우 재실밀도가 높아 주간에 이산화탄소(CO2)농도가 대부분 유지기준(1000 ppm)을 초과하였으며 야간에는 라돈(Radon)의 농도가 최대 100 Bq/㎥ 까지 상승하였다. 또한, 전열교환기를 24 시간 가동한 경우에 라돈의 농도는 40% 감소하였으나, 재실인원에 비하여 환기 풍량이 부족하여 CO₂ 농도 감소효과는 크게 나타나지 않았다. 노인요양시설의 경우 주로 야간에 CO₂와 TVOC 농도가 실내공기질 유지기준 (CO₂ 1000 ppm) 및 권고기준 (TVOC 400 ㎍/㎥)을 초과하였으며, 실제 배기 덕트의 풍량이 부족하여 배기팬의 가동으로 인한 CO₂와 TVOC 농도의 감소 효과는 크게 나타나지 않았다. 따라서 어린이집 및 노인요양시설의 실내공기질을 개선하기 위해서는 먼저, 인당 필요 환기량을 바탕으로 적정한 용량의 환기시스템이 설치되고 유지관리 되어야 하며, 지속적으로 실내오염물질의 유형 및 농도를 모니터링 하여 자연환기 및 기계환기를 적절히 혼합하여 가동할 필요가 있다.