Chemocondensation aerosols

Chemo condensation aerosols (CCA)

A number of compositions of different chemical nature are being developed, where the formation of a chemo condensation aerosol occurs as a result of chemical reactions not accompanied by burning. The products of these reactions are highly effective extinguishing agents, and taking into account the particle size of about 1 micron and the developed surface, the planned increase in the extinguishing capacity of the composition of such dispersion will be more than 30%.

In order to increase the frequency of use, a CCA generator was designed and manufactured, the possibility of using the CCA generator has been experimentally proven to extinguish various types of fire. The undoubted advantage of this composition is the ability to be used indoors and in open areas, including in harsh climatic conditions while maintaining a high extinguishing capacity. Experiments conducted in the open air show that under the influence of CCA, the effect of «melting» of the flame occurs, that is, under the influence of CCA, the glow of the flame decreases throughout the flame volume and eventually the flame goes out.

Prospective trends for the introduction of CCA technology are:

• hand held fire extinguishers based on CCA generators with additives of      surfactants which can extinguish large-area hydrocarbon liquid spills and class A fires (solid materials), while greatly simplifying the task of the fire extinguisher operator.
• special fire trucks for working in cold climactic conditions. Ammonia solutions in water at certain concentrations do not freeze at temperatures from +50 ° C to -70 ° C, while the consumption of the solution for extinguishing is an order of magnitude less than the water consumption for extinguishing a similar fire.

Due to the prevalence of fire extinguishing components, the equipment will be positioned in an affordable price point.

The key advantages of the developed CCA technology include:

• low cost of components for the formation of CCA;
• the simplicity of the generator design, which guarantees the ease of transition to mass production;
• the ability to recharge and re-use;
• the ability to build aggregate centralized installations for the protection of large objects;
• the possibility of creating «clean» fire extinguishing installations that do not pollute or destroy equipment, similar in this parameter to gas fire extinguishing installations (at a temperature of +60 ° C, one of the components decomposes into gaseous components);
• chemo condensation aerosol is low-toxicity, and if staff  have personal respiratory protection equipment, evacuation can be carried out during the operating conditions of the fire extinguishing system;
• absence of substances contributing to the destruction of the ozone layer.
• The proposed technologies are under development.