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부산광역시 공동주택의 외피구조에 따른 에너지 소비특성 분석
이정재(Yee Jurng-Jae),김환용(Kim Hwan-Yong),김승희(Kim Seung-Hee) 한국태양에너지학회 2014 한국태양에너지학회 논문집 Vol.34 No.4
In this paper we made energy consumption units of glass curtain wall type apartment and general apartment in Busan metropolitan city and compared energy consumption characteristics by building envelope. The monthly electricity consumption units of general apartment were shown in the range of 1.16~1.51kWh/m<SUP>2</SUP>·mon which were indicated higher value in January, February, August and September with little variation. On the other hand, in case of glass curtain wall type apartment, monthly electricity consumption units were represented in the range of 1.91~7.07kWh/m<SUP>2</SUP>·mon with significant fluctuations monthly, which were outstandingly high in July, August and September. The monthly city gas consumption units of general apartment were found to be in the range of 1.79~18.07MJ/m<SUP>2</SUP>·mon, while glass curtain wall type apartment were with in 0.94~ 19.91MJ/m<SUP>2</SUP>·mon. City gas consumption units from December to March were shown highly in both type apartments. The monthly energy consumption units of general apartment were found to be within 14.23~30.69MJ/m<SUP>2</SUP>·mon, while glass curtain wall type apartment were within 24.49~68.9MJ/m<SUP>2</SUP>·mon. Energy consumption units of glass curtain wall type apartment were suggested 4.84 times higher than those of general apartment.
학교교실 천정매입형 히트펌프의 최적 토출각도 선정에 관한 연구
이정재(Jurng Jae Yee),이미화(Mi Hwa Lee),김종훈(Jong Hun Kim) 한국실내환경학회 2006 한국실내환경학회지 Vol.3 No.1
In school, an improvement on thermal environment which can develop students" abilities and can enhance teacher"s efficiency is an important factor. Recently, some schools installed an air conditioner in classroom, while most schools selected the built-in type air conditioner. However, the study on a valuation of thermal environment is not sufficient, especially in classroom. It is insufficient that the study is a valuation of thermal environment which considered valuation about indoor thermal environment diffusion angle and air volume. In this work, the change of thermal environment was investigated for five kinds of air diffusion angle(15°, 30°, 45°, 60°, 90°) for ceiling type air conditioner. The vector and temperature distributions of air in the room were calculated by a 3-dimensional numerical method. This study was also conducted to calculate the Mean Age of Air and Predicted Mean Vote(PMV). This analysis showed that 30-45° is the optimum angle of diffusion in cooling mode and in heating mode.
주택용 환기시스템의 덕트설계를 위한 분배기 적용성 검토
이정재(Jurng-Jae Yee),최석용(Seok-Yong Choi),김석근(Seok-Keun Kim),김광현(Kwang-Hyun Kim),이영우(Young-Woo Lee),김환용(Hwan-Yong Kim) 대한설비공학회 2007 설비공학 논문집 Vol.19 No.11
Although these days application of heat recovery ventilation and improved kitchen ventilation system came into wide use in mixed-use residential buildings and exclusive residences, there are not enough ventilation systems except the local ventilation of kitchens and rest rooms. It is very important part to regulate and distribute correct air flow rate for controlling air change rate. The purpose of this study is to investigate the application of distributor at house ventilation system by comparing a duct system with out distributor and with distributor. The results of this study are as follows. (1) When using distributor though the size of duct diameter is reduced rapidly, the pressure loss doesn't rise largely. The pressure loss without distributor is 4.08 ㎜Aq, the pressure loss with distributor 4.10 ㎜Aq. (2) To use distributor can reduce materials of duct and secure enough ceiling space by reducing duct diameter. (3) Diameters and air flow paths of distributor on the design stage are important part for accurate air flow rate.
부산 신항만지역 환경친화적 에너지 수급을 위한 동적 열부하계산
이정재(Jurng-Jae Yee),이선애(Sun-Ae Lee),조용수(Yong-Soo Cho),도근영(Geun-Young Doe) 한국항해항만학회 2003 한국항해항만학회 학술대회논문집 Vol.3 No.-
매립지는 도심부 혹은 내륙지역과는 달리 독특한 지형적 자연환경 특성을 가지고 있으며 내륙지역에 비해 낮은 기온, 강한 바람, 과다한 일사조건, 해염을 포함한 습기라는 기후적 악조건을 가지고 있다. 따라서 워터프런트를 개발할 경우는 매립에 따른 기후환경 특성을 상세하게 파악하여 적합한 개발 및 체계적인 유지관리가 필요하다. 워터프런트의 지형적, 기후적 특성을 충분히 검토하지 않고 개발을 추진할 경우 기후환경의 악화와 더불어 시설의 하자발생 및 부정확한 설비용량 산정에 따른 에너지비용 및 유지관리비용의 상승이 초래될 수 있다. 본 연구에서는 현재 매립·개발이 진행되고 있는 부산 신항만지역의 환경친화적 에너지 수급계획을 위하여 신항만지역의 표준 기상데이터를 작성하고, 이를 바탕으로 현재 계획되어 있는 상업·업무시설과 주거시설을 대상으로 동적 열부하계산을 실시하여 신항만지역 배후도시의 설비용량 산정을 위한 기초자료를 제시하고자 한다. The reclaimed land has peculiar characteristic of nature environment unlike midtown or inland and also, in comparison with inland, has bad weather condition, such as low temperature, strong wind, excessive sunshine, and moisture involved in a salt. Therefore the case of developing Water Front needs understanding characteristic of weather environment caused by reclamation in detail and proper development and organized maintenance. If development which doesn't investigate topographic and climate characteristic sufficiently is drove ahead, a rise of expense for energy and maintenance is going to be caused by deteriorating weather environmental, occurring a flaw of facility and calculating inaccurate capacity of facility. I looked into the whether state and drew up the Standard Whether Date of the harbor area in Busan which is reclaiming and developing now. In this research at the base of the Standard Whether Date, I will calculate the load of facilities for commerce, business and residence and then I utilize the results of the load calculation as basic information to determine facility capacity in the rear city of the newport area.