• Title/Summary/Keyword: 폴리부틸렌관

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An Experimental Study on the Sterilizing and Antibacterial Performance of Polybutylene Pipe with Nano-Silver (은나노 입자를 함유한 폴리부틸렌관의 살균 및 항균성능에 관한 실험적 연구)

  • Choi Sang-Gon;Hong Jin-Kwan;Kim Yong-Bong;Yang Chan-Mo;Park Min-Kyu
    • Korean Journal of Air-Conditioning and Refrigeration Engineering
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    • v.18 no.7
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    • pp.549-555
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    • 2006
  • In the present study, sterilizing and antibacterial performance tests of Polybutylene pipe with nano-silver were carried out in the testing bench of water supply facilities. Experimental results show that the average sterilizing and antibacterial rate of two micro-biological samples such as E. coli and S. aureus is about 90% in case of stillness experimental condition and 99% in case of flowing experimental condition, when elapsed time is 120 hours and 3 hours, respectively. Experimental results also show that the supply water velocity in nano-silver Polybutylene pipe varies from 1 m/s to 1.5 m/s, the elapsed time needed sterilizing rate reach to 100% decreases.

The Study of Water Hammer in Polybutylene Double Piping System (폴리부틸렌 이중관에서의 워터 햄머 현상에 관한 연구)

  • Kim, Yong-Bong;Yang, Chan-Mo;Lee, Yong-Hwa
    • Proceedings of the SAREK Conference
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    • 2005.11a
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    • pp.511-516
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    • 2005
  • This study is to investigate the pressure wave characteristics and the maximum pressure rise generated by instantaneous valve closure at the end of the straightening polybutylene double piping system with header. Experiments were conducted under the following conditions: initial pressure $1{\sim}5$ bar, flow velocity $0.5{\sim}3.0$ m/s and water temperature $25^{\circ}C$.

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The Study of Water Hammer in Polybutylene Double Piping System (폴리부틸렌 이중관에서의 수격 현상에 관한 연구)

  • Lee, Yong-Hwa
    • Korean Journal of Air-Conditioning and Refrigeration Engineering
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    • v.21 no.7
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    • pp.380-385
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    • 2009
  • This study is to investigate the pressure wave characteristics and the maximum pressure rise generated by instantaneous valve closure at the end of the straightening polybutylene double piping system with header. Experiments were conducted under the following conditions: initial pressure $0.1{\sim}0.5$ MFa, flow velocity $0.5{\sim}3.0$ m/s and water temperature $25^{\circ}C$.