Математичне забезпечення для проектування систем генерування компресійної піни

Jazyk: angličtina
Rok vydání: 2020
Předmět:
Zdroj: Науковий вісник НЛТУ України, Vol 30, Iss 3, Pp 111-115 (2020)
ISSN: 2519-2477
1994-7836
Popis: The article considers an effective fire extinguishing agent in the form of compression foam to fight forest fires. Based on the analysis of experimental studies on the effectiveness of compression foam over other extinguishing agents, its advantages during use in forests in case of fires have been established. Concerning the authors' analysis, it is noted that there are no samples with the technology of compression foam in the country. The development of a mathematical model of the compression foam generation process is proposed, which in the future will be the basis for the manufacture of an experimental sample of a system for the supply of compression foam. The most convenient tool for solving problems in describing stationary and transient processes in the design of structures are modern software products. The Simulink graphical simulation environment (integrated into the MatLab software environment) allows building dynamic models with the help of individual blocks in the form of directional graphs. The structure of such a model is built on the basis of separate, independent blocks, which are separate mathematical models themselves. The considered mathematical model of the process of generating compression foam includes three separate blocks. The article presents mathematical modeling of the operation of the gas unit, the operation of the supply unit of the mixture of water and foaming agent, and the operation of the foam movement in the sleeve. Each of the blocks is an autonomous mathematical model with its own input and output. With the help of these models the interaction between the blocks is provided in the process of performing the general modeling task. These individual units can be changed according to changes in the design of the installation, leaving only a constant outer shell (number of inputs, outputs, and dimension) of the individual unit. The next stage of the research is the development of the foam generator unit and the communication system between the units, for further interactions of these units with the units already developed in this article and the general task of modeling the compression foam generation process in the system. Thus, during the interactions of these units, the task will be performed, which is to determine the necessary technical parameters of the system, depending on the fire – extinguishing properties of the compression foam to be obtained.
Databáze: OpenAIRE