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A Study on Foam Mixing Characteristics in Steady State to Enhance the Performance of Proportioner for Foam System  

Ku, Jae-Hyun (한국소방산업기술원 소방산업기술연구소)
Publication Information
Journal of the Korean Society of Hazard Mitigation / v.9, no.5, 2009 , pp. 63-68 More about this Journal
Abstract
This study describes to analyze foam mixing characteristics in steady state to enhance the performance of proportioner for foam system designed to accurately proportion a foam liquid concentrate into a water stream up to constant concentration. The proportioner developed is experimentally evaluated in performance evaluation system consisted of a pump, tanks, pressure gauges, flow meters, a nozzle. As a result, the foam mixing performance of the line proportioner is found to increase with increased the water flow rate due to the venturi effect and with increased the cross-sectional area of the orifice and is analysed with 3 % in the error rate of $\pm4%$. For the pressure proportioner, the foam mixing performance is analyzed to increase with increased the water flow rate and with increased the inlet pressure and is analysed with 3% in the error rate of $\pm2%$.
Keywords
foam system; foam mixing performance; line proportioner; pressure proportioner;
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