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공동주택단지에 설치된 부스터펌프 급수설비계통의 유동 특성
오양균(Yang-Gyun Oh),정재봉(Jae-Bong Jeong),박미라(Mi-Ra Park),차동진(Dong-Jin Cha) 대한설비공학회 2008 대한설비공학회 학술발표대회논문집 Vol.2008 No.2
Water flow characteristics of an apartment complex consisting of 12 buildings and 635 units in total have been investigated numerically. The complex incorporates two zone booster pump water supply system, and some units have pressure reducing valves in them. Input data to a commercial code Flowmaster7 include survey results on the water usage for the last three years, dimension of the water supply system and its operation condition, etc. Calculated static pressures at the inlet of all units are compared with their design and measured counterparts, and they agree quite well with each other. Then, the pressure distributions and volumetric flow rates at all 635 units are estimated. Flow balancing is also attempted by varying the ratio of angle valve of each unit to improve the non-uniformity of flows.