L. M. Zhao, X. M. Ma, J. J. Fu, D. D. Li and J. Qin (2013) Improvable method of fire suppressant concentration measurement: An experimental validation. Journal/Flow Measurement And Instrumentation 30 75-80. [In English]
Web link: http://dx.doi.org/10.1016/j.flowmeasinst.2013.01.002
Keywords: Fire suppressant, Concentration measurement, Hagen-Poiseuille law, Pressure drop, Viscosity
Abstract: An improvable method which could be used in fire suppressant concentration measurement is presented in this paper. The essential principle of the design is based on the Hagen-Poiseuille law. Gas mixture flow was driven to pass through a set of capillary tubes and pressure drop between ends of the tubes is measured. The pressure drop is a function of gas viscosity and the viscosity of binary gas mixture is actually determined by volume percentage of each component. Relationship between volume percentage and pressure drop can then be established. Results of experiments verify the theoretical analysis and show potential application prospect. (C) 2013 Elsevier Ltd. All rights reserved.