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EHP시스템이 적용된 소규모 업무시설의 경제성을 고려한 최적의 창호열성능에 관한 연구
박창봉(Chang-Bong Park),안세영(Se-Yeong An),원종연(Jong-Yeon Won),이언구(Eun-Ku Rhee) 대한설비공학회 2012 대한설비공학회 학술발표대회논문집 Vol.2012 No.6
As the utilization of air conditioning system by EHP is increasing in these days as the heat source of small office buildings, it should be considered to strengthen thermal performance up to double-layered Low-E or triple layered Low-E glass at planning window system for energy saving. Also the consideration of U-value and G-value as the thermal characteristics of office building must be emphasized on the optimized choice of window. In this study, utilizing ECO2-energy efficiency appraisal program, we suggest the optimized window system of small office building with EHP system, considering the initial cost and energy cost of each window system including thermal performance. Furthermore, during the economic estimation, we suggest the design guideline of passive energy saving techniques for the skin of small office building.
합류식 하수관거 지역에서 강우시 하수처리장 적정운영방안에 관한 연구
이두진 ( Lee Du Jin ),신응배 ( Sin Eung Bae ),홍철의 ( Hong Cheol Ui ),안세영 ( An Se Yeong ) 한국물환경학회 2004 한국물환경학회지 Vol.20 No.2
The purpose of this study was to evaluate alternatives for stable operation of WWTP(Wastewater Treatment Plant) with a higher rate of inflows and a higher concentration of pollutants during wet weather to minimize the pollution loads being discharged into receiving waters. 3Q(Q: dry weather flow) of a base flow is normally intercepted and flows into WWTP as it was current practice. It is revealed by simulation that the bypassing alternative of 1Q through secondary treatment and 2Q into the stream after primary treatment was as good as it is expected. The bypass pollution loads were in the range of 23.9 - 38.5% of the total loads flowing into the WWTP indicating that the bypassed flows need an extra treatment such as stormwater detention reservoir, high-rate coagulation with sedimentation, and step-feed. The high-rate coagulation with sedimentation was the most effective with respect to removal of the pollution loads.