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에너지절약형 주택에서의 단열차양 적용과 제어방법에 따른 냉난방부하 분석
권경우(Kyung-Woo Kwon),원종서(Jong-Seo Won) 대한설비공학회 2009 대한설비공학회 학술발표대회논문집 Vol.2009 No.-
Energy loss from windows accounts for large scores of heating and cooling loads also in energy saving apartments that is reduced over 30% of total energy consumption. Movable reflective insulations, insulation shutters, blinds, insulated shades are used to reduce energy loads from windows. In this study, energy saving performance of insulated shades was simulated by control methods. According to installation of insulated shades, heating loads were decreased about 10.5~11.3%, and cooling loads are decreased about 11.0~15.5% on an energy saving apartment. The heating peak load was reduced about 9.5% by insulated shades, but the cooling peak load is hardly ever decreased. Because in the condition of cooling peak load, latent cooling loads accounts for large score of cooling loads. Difference of the energy loads by a schedule control method and an outdoor detection control was no more than 5% for a base model. In the case of insulated shades with automatic control system, simple time schedule control system would be more efficient than outdoor detection control system that should use several sensors.
Inverse Model Toolkit을 이용한 리모델링 건축물의 에너지 성능평가 사례
권경우(Kyung-Woo Kwon),이석주(Suk-Joo Lee),박준석(Jun-Seok Park) 대한설비공학회 2014 설비공학 논문집 Vol.26 No.8
Several models and methods have been developed to verify the improvement of energy performance in retrofit buildings. The verification is important to confirm the effectiveness of new technologies or retrofits. Inverse model toolkit proposed by ASHRAE evaluates the changes of the energy performance of retrofit buildings by using actual energy consumption data. In this study, the inverse model toolkit was used to analyze heating and cooling energy performance of an office building. Analyzed coefficients of correlation of actual energy consumption with estimated energy consumption was above 0.92 and well fitted. It was confirmed that energy consumption of natural gas decreased by 43.4% and also that electricity decreased by 13.8%, after the retrofit of the case building. For the energy usage, cooling energy was increased by 7.4%, heating energy was decreased by 42.3%, hot water and cooking were increased by 3.4%, lighting and electronics were decreased by 19.3%, and the total energy was decreased by 18.9%.
공동주택의 환기방식별 다수실 환기 성능에 관한 연구 : 다수실의 환기경로 및 환기효율
권경우(Kyung Woo Kwon),조시진(Si Jin Cho),최의성(Eui Sung Choi),박준석(Jun Seok Park) 대한설비공학회 2006 대한설비공학회 학술발표대회논문집 Vol.2006 No.6
Heating and cooling load of ventilation is a very important part of building energy saving. Improving ventilation effectiveness can save building energy consume and supply fresh air to indoor efficiently. So this study measured mulity-zone aiflow and ventilation effectiveness according to ventilation types. Result of measurement show that ventilation effectiveness is depends on ventilation system design rather than ventilation types.
저에너지 공동주택의 난방에너지 사용량 분석에 관한 연구
권경우(Kyung-Woo Kwon),박선효(Sun-Hyo Park),원종서(Jong-Seo Won),배상환(Sang-Whan Bae) 대한설비공학회 2011 대한설비공학회 학술발표대회논문집 Vol.2011 No.7
The purpose of this study is performance validation of a energy saving apartment about heating energy consumption and analysis of energy consumption by unit characteristics. The performance validation is performed by comparison energy saving apartment with ordinary apartments. And heating energy is analysed by unit position, area, balcony extendtion. Result of this study shows that gas consumption of energy saving apartment is 16.9% less than ordinary apartments and heating gas consumption of energy saving apartment is 22.3% less than ordinary apartments
사무소건물에서의 실내공기질 개선에 따른 경제적 효과에 관한 연구
권경우(Kwon Kyung-Woo),박준석(Park Jun-Seok) 대한건축학회 2007 대한건축학회논문집 Vol.23 No.10
The purpose of this study was to evaluate the potential work performance benefits of increased ventilation rates. Perceived air quality, Sick Building Syndrome(SBS) symptoms and work performance were experimented in a normally furnished Mock-up space ventilated with an outdoor. Six groups of three man and female subjects were exposed to the three ventilation rates, 5, 12 and 21 L/sec per person and the temperature, the relative humidity and all other environmental parameters remained unchanged. Each exposure lasted 2 hours and the subjects were unaware of the intervention and remained thermally neutral by adjusting their clothing. They assessed perceived air quality and SBS symptoms at intervals, and performance simulated normal office work. From the results of the experiments, the performance of three simulated office works improved monotonically with increasing ventilation rates. In case of text-typing, the performance was improved about 5.3%(P<0.08), and the addition and character re-arrangement was also improved about 4.2%(p<0.09) and 9.2%(p<0.18). This study shows the benefits for health, comfort and the performance of the occupants in office buildings with increasing the outdoor air ventilation rate. The analysis of cost benefits of improved indoor air quality based on the energy simulation shows that the economical benefit from the improved work performance is more lager than the energy costs of increased ventilation rate.
인접세대의 난방 조건에 따른 공동주택의 난방에너지 사용량 분석에 관한 연구
권경우(Kyung-Woo Kwon),박선효(Sun-Hyo Park),이병권(Byung-Kwon Lee),장세웅(Se-Woong Jang) 대한설비공학회 2012 대한설비공학회 학술발표대회논문집 Vol.2012 No.6
Normally, it is assumed that heating and temperature condition of each household are equal on apartments. That means heat loss to adjacent household is not considered for heating load calculation of each unit. But adjacent walls, including ceiling and floor, have large area and high U-value, it can cause heat loss to adjacent household. So, the purpose of this study is survey of heating energy consumption by adjacent household. Results of this study show that heat loss to adjacent household by heating control and set temperature can cause much heating energy consumption and the code for adjacent insulation is needed.
온도변화가 건축자재에서의 휘발성유기학학물질 유효확산계수에 미치는 영향에 관한 연구
최은선(Choi Eun-Sun),권경우(Kwon Kyung-Woo),박준석(Park Jun-Seok) 대한건축학회 2008 대한건축학회논문집 Vol.24 No.6
The purpose of this study is to evaluate the effect of temperature on the effective diffusion coefficient of VOCs in building materials. Cup method was used for measuring effective diffusion coefficients of three VOCs, such as toluene, ethylbenzene and decane, in seven single-layer materials. The effective diffusion coefficients of three VOCs are estimated from 257.5×10<SUP>-8</SUP> to 0.2×10<SUP>-8</SUP>[㎡/sec], and they are increased according to increasing of temperature in the single-layer materials. The mass transfer rate at the surface of the materials were ranged from 1.2×10<SUP>-7</SUP> to 4.8×10<SUP>-7</SUP>[m/sec]. The change of the effective diffusion coefficients of VOCs according to the temperature shows good fit with Arrhenius' low, and the E values, empirically determined coefficient [K], are were from 3,000 [K] to 5,500[K]. From the experiments, it is suggested that the changes of VOCs emissions from multi-layer materials at different temperature condition, can be predicted using the effective diffusion coefficients and E values of each single-layer materials through the numerical methods.
마감공사후 경과시간에 따른 복합마감재의 VOCs/VVOCs 방출량과 실내농도에 관한 연구
윤창현(Chang Hyun Yoon),권경우(Kyung Woo Kwon),박준석(Jun Seok Park) 대한설비공학회 2006 대한설비공학회 학술발표대회논문집 Vol.2006 No.6
The purpose of this study is to evaluate the impacts of finishing materials' VVOCs and VOCs emission rates on indoor air quality of Apartment. VOCs emission rate of multi-layer finishing is predicted using the effective diffusion coefficient of each materials, and then the prediction is compared with Mock-up test and sample apartment house. From the results, the prediction of multi-layer finishing using the effective difusion coefficient show good relation with the measured values.
사무소건물의 실내공기질 개선과 경제적 효과에 관한 연구
김태중(Kim Tae-Jung),권경우(Kwon Kyung-woo),박준석(Park Jun-Seok) 한국건축친환경설비학회 2007 한국건축친환경설비학회 학술발표대회 논문집 Vol.- No.-
The purpose of this study was to evaluate the potential work performance benefits of increased ventilation rates. The work performance were experimented in a normally furnished Mock-up space ventilated with outdoor air. Six groups of three man and female subjects were exposed to the three ventilation rates, 5, 12 and 21 L/sec per person and the temperature, the relative humidity and all other environmental parameters remained unchanged. Each exposure lasted 2 hours and the subjects were unaware of the intervention and remained thermally neutral by adjusting their clothing. They assessed perceived air quality and SBS symptoms at intervals, and performance simulated normal office work. From the results of the experiments, the performance of three simulated office works improved monotonically with increasing ventilation rates. In case of text-typing, the performance was improved about 5.3%(P<0.08), and the addition and character re-arrangement was also improved about 4.2%(p<0.09) and 9.2%(p<0.18). This study shows the benefits for health, comfort and the performance of the occupants in office buildings with increasing the outdoor air ventilation rate. The analysis of cost benefits of improved indoor air quality based on the energy simulation shows that the economical benefit from the improved work performance is more lager than the energy costs of increased ventilation rate.