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Field testing and extinguishing efficiency comparison of the optimized for higher expansion rates deflector type sprinkler with other foam and foam-water sprinklers

Fire Safety Journal, 2020
Abstract The process of foam formation in sprinklers (nozzles) for automatic extinguishing systems at present is poorly studied. There are no analytical models for predicting this process due to the presence of many complex physicochemical, mechanical and other phenomena.
Andrei Kamluk   +2 more
openaire   +1 more source

Measurement of drainage rates of high‐expansion foams

Journal of Applied Chemistry, 1962
AbstractA method for measuring the drainage rates of single liquid films by the movement of interference fringes is described. It is shown that the cross‐section of a fast draining film is wedge‐shaped and so its average thickness equals the thickness at its mid‐height. Various degrees of water hardness produced changes in the drainage rate of a single
openaire   +1 more source

Effect of rapid setting and hardening cement substitution rate on volume expansion rate of foamed concrete

ce/papers
AbstractFoam concrete is an excellent new energy‐saving material, but its scope of application is limited due to insufficient foam stability. To improve the foaming performance and applicability of foam concrete, this experiment was conducted with the aim of studying the expansion pattern of foam concrete under different conditions.
Fuyi Pan, Guangri Jin, Yuqi Cui
openaire   +1 more source

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