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.

한국 청년세대 담론의 지형도

권경우(Kwon, Kyoung-woo) 다빈치미래교양연구소 2016 교양학연구 Vol.0 No.3

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.

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

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%.

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.

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.

Inverse Model Toolkit을 이용한 리모델링 건축물의 에너지 성능평가 사례

권경우(Kwon Kyung-Woo),박선효(Park Sun-Hyo) 한국태양에너지학회 2014 한국태양에너지학회 학술대회논문집 Vol.2014 No.3

침윤성 방광암 환자에서 방광 보존 치료

윤선민(Seon Min Youn),양광모(Kwang Mo Yang),이형식(Hyung Sik Lee),허원주(Won Joo Hur),오신근(Sin Geun Oh),이종철(Jong Cheol Lee),윤진한(Jin Han Yoon),권현영(Heon Young Kwon),정경우(Kyung Woo Jung),정세일(Se Il Jung) 대한방사선종양학회 2001 Radiation Oncology Journal Vol.19 No.3

목 적 :침윤성 방광암 환자를 대상으로 TURBT (Transurethral Resection of Bladder Tumor)과 유도 항암화학요법 (neoadjuvant MCV chemotherapy) 후 방사선 항암화학 병용요법(cisplatin chemotherapy and radiotherapy)을 받은 환자 에서 치료의 적응도, 국소 반응율, 방광 보존율과 생존율을 알아보고자 하였다. 대상 및 방법 : 1990년 10월부터 1998년 6월까지 TURBT 시행 후 병리 조직검사 상 침윤성 방광 이행상피암으로 진단 받은 병기 T2-T4, Grade II 환자 21명을 대상으로 하였다. 치료과정은 TURBT 후 4주 간격으로 2회의 유도 MCV (methotrexate, cisplatin, vinblastine) 복합 항암화학요법을 시행하고 그 후 cisplatin과 방사선 동시 병용요법을 시행하였다. 방사선치료는 6∼15 MV X- ray를 사용하여 하루 1.8 Gy씩 39.6∼45 Gy를 전 골반에 4∼5주간에 걸쳐 조사하였 다. 치료 종료 후 방광내시경을 통해 관해율을 판정하여 완전 관해인 경우 1∼2주 후 보강 방사선조사를 cisplatin과 병용하여 19.8 Gy를 시행하였다. 부분 관해인 경우 근치적 방광 절제술을 예정하였고 수술이 불가능한 경우에는 항암제 병용 강화 방사선치료를 받도록 하였다. 환자의 추적관찰기간은 34∼67개월로 중앙값이 49.5개월이었다. 결 과 :총 26명의 환자가 유도 항암화학요법을 위해 등록되었으며 유도 항암화학요법과 방사선 항암화학 병용요법을 완료한 환자는 21명(81%)이었다. 유도 항암화학요법과 방사선 항암화학 병용요법 후 방광내시경을 통해 완전 관해 판정을 받은 환자는 21명 중 7명(33%)이었고 부분 관해 환자는 14명(67%)이었다. 완전 관해 환자 중 강화 항암제 병용 방사선 19.8 Gy를 받은 환자는 7명 중 6명(85%)이었고, 이들 중 5명(14%)은 재발 없이 방광을 보존하였다. 부분관해 환자중 1명이 근치적 방광적출술을 받았으며 3명이 TURBT와 2회의 MCV 항암요법을, 10명이 추가의 항암화학 방사선 병용요법을 받았다. 근치적 방광적출술을 받은 1명은 수술 소견상 방광 내 종양이 존재했으나 수술 후 재발이 없었다. 전체 21명의 환자중 12명(58%)이 방광을 보존하면서 생존하고 있고 8명이 방광암으로 사망하였으며 1명이 다른 질병으로 사망하였다. 전체 환자의 중앙 생존기간은 27개월이며, 5년 생존율은 55% 였다. 유도 항암화학요법과 항암제 방사선치료 후 완전 관해 환자의 경우 5년 생존율은 80%, 부분 관해 환자 14%로 의미 있는 차이를 보였다(p=0.001). 유도 항암화학요법과 항암제 병용 방사선치료를 받은 환자에서 grade 3 이상의 혈액학적 부작용의 빈도는 각각 백혈구 감소증 6명(29%), 혈소판 감소증 1명(4%)이었으며 이로 인한 화학요법의 지연은 1명(4%)에서 관찰되었다. 결 론 :침윤성 방광암 환자에서 유도 항암화학요법 및 항암제 병용 방사선치료를 적용하여 방광 보존율 및 5년 생존율에 있어 만족할 만한 결과를 얻었다. 완전한 TURBT와 유도 MCV 항암요법과 cisplatin 방사선 병용요법에서 완전관해 여부가 방광보존가능성과 생존율에 영향을 미치는 요소로 생각되고 만약 완전관해를 이루지 못하면 근치적방광적출술을 시행하는 것이 바람직할 것이다. Purpose : To assess the tolera nce, complete response rate, bladder preservation rate and survival rate in patients with muscle- invading bladder cancer treated with selective bladder preservation protocol. Method and Materials : From October 1990 to June 1998, twenty s ix patients with muscle- invading bladder cancer (clinical stage T2- 4, N0- 3, M0) were enrolled for the treatment protocol of bladder preservation. They were treated with maximal TURBT (tra nsurethral resection of bladder tumor) and 2 cycles of MCV chemotherapy (methotrexate, crisplatin, and vinblastine) followed by 39.6∼45 Gy pelvic irradiation with concomitant cisplatin. After complete urologic evaluation (biopsy or cytology), the patients who achieved complete response were planed for bladder preservation treatment and treated with consolidation cisplatin and radiothera py (19.8 Gy). The patients who had incomplete response were planed to immediate radical cystectomy. If they refused radical cystectomy, they were treated either with TURBT followed by MCV or cisplatin chemothera py and radiotherapy. The median follow- up duration is 49.5 months . Result : The patients with stage T2- 3a and T3b- 4a underwent complete removal of tumor or gross tumor removal by TURBT, respectively. Twenty one out of 26 patients (81%) successfully completed the protocol of the planned chemo- radiothera py. Seven patients had documented complete response. Six of them were treated with additional consolidation cisplatin and radiothera py. One patient was treated with 2 cycles of MCV chemothera py due to refusal of chemo- radiotherapy. Five of 7 complete responders had functioning tumor- free bladder. Fourteen patients of incomplete responders were further treated with one of the followings : radical cystectomy (1 patient), or TURBT and 2 cycles of MCV chemotherapy (3 patients), or cisplatin and radiotherapy (10 patients). Thirteen patients of them were not treated with planned radical cystectomy due to patients ' refusal (9 patients) or underlying medical problems (4 patients). Among twenty one patients , 12 patients (58%) were alive with their preserved bladder, 8 patients died with the disease,1 patient died of intercurrent disease. The 5 years actuarial surviva l rates according to CR and PR after MCV chemotherapy and cisplatin chemoradiotherapy were 80% and 14%, respectively (p=0.001). Conclusion : In selected patients with muscle- invading bladder cancer, the bladder preservation could be achieved by MCV chemotherapy and cisplatin chemo- radiotherapy. All patients tolerated well this bladder preservation protoco. The availability of complete TURBT and the respons ibility of neoadjuvant chemotherapy and chemoradiotherapy were important predictors for bladder preservation and survival. The patients who had not achieved complete response after neoadjuvant chemotherapy and chemoradiotherapy should be immediate radica l cystectomy. A randomized prospective trial might be essential to determine more accurate indications between cystectomy or bladder preservation.

도로사선제한 폐지에 따른 도시공간변화 분석

홍경우(Hong, Kyungwoo),박정환(Park, Junghwan),권영상(Kwon, Youngsang) 한국도시설계학회 2015 도시설계 : 한국도시설계학회지 Vol.16 No.6

이 연구는 ‘도로사선제한’(건축법 제60조 3항) 폐지의 배경과 의도를 파악하고 향후 우리 도시에 미칠 영향을 예측하는데 목적이 있다. 이를 위하여 각종 공적 서류의 검토를 통해 넓은 범위에서 개정배경을 분석하였다. 그리고 강남대로 이면도로의 두 건축물을 대상으로 시뮬레이션을 수행하여 개정 이후의 변화 양상을 시각화하여 분석하였다. 공적 서류의 검토 결과, 면밀한 학술적 검토가 부족한 상황에서 정부의 규제개혁을 통한 경제 활성화의 일환으로 추진된 것임을 확인할 수 있었다. 시뮬레이션 결과, 모든 시나리오에서 건물의 연면적 증가가 나타나 투자 촉진 효과가 있는 것으로 나타났다. 하지만 지구단위계획이나 가로구역별 최고높이제한이 적용되지 않는다고 가정했을 때, 무분별한 난개발에 따른 문제점이 발생할 것으로 예측되었다. 따라서 ‘도로사선제한’ 폐지에 이어 지구단위계획구역 및 가로구역별 최고높이제한구역의 지정 확대가 조속히 이루어져야 할 것이다. This study aims to explore the background, purpose, and expected outcomes of the abolition of ‘Diagonal Plane Control by Street Width (DPCSW)’. The methods of this study are as follows: (1) literature reviews with official documents and (2) empirical analysis and simulation with several sites located at a narrow street near Gangnam Station in Seoul. In conclusion, the abolition of DPCSW was intended to promote domestic real estate market, while lacking thorough scientific research. The simulation results show total floor areas in each building would effectively increase with the abolition and boost real estate market. However, the results also indicate without alternative design guidelines, the abolition of DPCSW can result in uncontrolled development with excessive urban density. Alternative urban design regulations such as Building Maximum Height by Block Unit and District Unit Plan should be extendedly applied to a wider area as soon as possible to prevent these issues.