Flow Characteristics of a Water Supply System with Booster Pumps for an Apartment Complex

공동주택단지에 설치된 부스터펌프 급수설비계통의 유동 특성

  • Oh, Yang-Gyun (Kyeryong Construction Industrial Co., Ltd) ;
  • Jeong, Jae-Bong (Dept. of Building Services Engineering, Hanbat National University) ;
  • Park, Mi-Ra (HIMEC (HANILMECH.ELEC.Consultans)) ;
  • Cha, Dong-Jin (Dept. of Building Services Engineering, Hanbat National University)
  • Published : 2008.11.21

Abstract

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.

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