상하수도학회지 (Journal of Korean Society of Water and Wastewater)

  • 제32권5호
  • /
  • Pages.411-419
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  • 2018
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  • 1225-7672(pISSN)
  • /
  • 2287-822X(eISSN)
대한상하수도학회 (The Korean Society of Water and Wastewater)
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EPANET 2.0과 관망실험을 통한 배수관망 염소농도 감쇄 비교연구

A comparative study for the decay of chlorine residual using EPANET2.0 and an experimental pipeline system

  • Baek, Dawon (Pusan National University Environmental Engineering) ;
  • Kim, Hyunjun (Pusan National University Environmental Engineering) ;
  • Kim, Sanghyun (Pusan National University Environmental Engineering)
  • 투고 : 2018.08.21
  • 심사 : 2018.09.28
  • 발행 : 2018.10.15
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초록

The residual chlorine concentration is an essential factor to secure reliable water quality in the water distribution systems. The chlorine concentration decays along the pipeline system and the main processes of the reaction can be divided into the bulk decay and the wall decay mechanisms. Using EPANET 2.0, it is possible to predict the chlorine decay through bulk decay and wall decay based on the pipeline geometry and the hydraulic analysis of the water distribution system. In this study, we tried to verify the predictability of EPANET 2.0 using data collected from experimental practices. We performed chlorine concentration measurement according to various Reynolds numbers in a pilot-scale water distribution system. The chlorine concentration was predicted using both bulk decay model and wall decay model. As a result of the comparison between experimental data and simulated data, the performance of the limited $1^{st}$-order model was found to the best in the bulk decay model. The wall decay model simulated the initial decay well, but the overall chlorine decay cannot be properly predicted. Simulation also indicated that as the Reynolds number increased, the impact of the wall.

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참고문헌

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