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Mathematical modeling of gas-liquid flow in compressed air foam generation systems

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Title: Mathematical modeling of gas-liquid flow in compressed air foam generation systems
Authors: Vinogradov, Stanislav, Shakhov, Stanislav, Kodryk, Anatolii, Titenko, Oleksandr, Parkhomchuk, Oleksandr
Source: Technology audit and production reserves; Том 4, № 3(54) (2020): Chemical engineering; 29-35
Technology audit and production reserves; Том 4, № 3(54) (2020): Хімічна інженерія; 29-35
Technology audit and production reserves; Том 4, № 3(54) (2020): Химическая инженерия; 29-35
Publisher Information: Private Company Technology Center, 2020.
Publication Year: 2020
Subject Terms: огнетушащие свойства, компрессионная пена, тушение пожаров, блок пеногенератора, системы коммуникации между блоками, УДК 614.842.615, 0211 other engineering and technologies, 02 engineering and technology, fire extinguishing properties, compression foam, fire extinguishing, foam generator unit, communication systems between units, 01 natural sciences, вогнегасні властивості, компресійна піна, гасіння пожеж, системи комунікації між блоками, 0105 earth and related environmental sciences
Description: The object of research is the compression foam supply system. One of the most problematic areas in the design of compression foam supply systems is the need to obtain a certain type of foam with the necessary properties, depending on the class of fire for which it will be used to extinguish. It is necessary to take into account the technological process of foam formation, namely, the regulation of the flow of the foaming agent solution and compressed air, which are fed into the mixing chamber, where the foam is generated directly. It is important to ensure optimal parameters depending on the purpose of the foam outlet flow installation: flow rate, foam ratio and foam stability. In order to design a compression foam supply system with certain technological parameters, it is necessary to obtain these parameters analytically in advance, for which it is necessary to construct an appropriate mathematical model. In the course of the research, let’s use the Simulink graphical simulation environment (integrated into the MatLab software environment), which allows building dynamic models using separate blocks in the form of directed graphs. The structure of such a model is built on the basis of separate, independent blocks, which in themselves are separate mathematical models. New is the development of a mathematical model of a two-phase flow: a liquid phase consisting of a mixture of water with a foaming agent and a gas phase - air in the foam generator path as part of a block diagram of an installation for the case of generation of compression foam. And also the development of a scheme and communication algorithm for serially connected blocks of a common block diagram. This ensures the receipt of the calculated output data of the stationary mode of operation of the installation. The mathematical model developed in this work allows solving the following applied and scientific problems: – to carry out calculations of the input parameters of the installation, which will provide the required output parameters: flow power, frequency ratio, continuous generation time, foam resistance, determined by the purpose and features of the installation in conditions of extinguishing various types of fires; – to investigate the influence of the parameters of the foam generation insert of the installation on the expansion of the compression foam.
Document Type: Article
File Description: application/pdf
ISSN: 2706-5448
2664-9969
DOI: 10.15587/2706-5448.2020.210375
Access URL: http://journals.uran.ua/tarp/article/download/210375/211535
http://journals.uran.ua/tarp/article/view/210375
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  Data: Mathematical modeling of gas-liquid flow in compressed air foam generation systems
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  Data: <searchLink fieldCode="AR" term="%22Vinogradov%2C+Stanislav%22">Vinogradov, Stanislav</searchLink><br /><searchLink fieldCode="AR" term="%22Shakhov%2C+Stanislav%22">Shakhov, Stanislav</searchLink><br /><searchLink fieldCode="AR" term="%22Kodryk%2C+Anatolii%22">Kodryk, Anatolii</searchLink><br /><searchLink fieldCode="AR" term="%22Titenko%2C+Oleksandr%22">Titenko, Oleksandr</searchLink><br /><searchLink fieldCode="AR" term="%22Parkhomchuk%2C+Oleksandr%22">Parkhomchuk, Oleksandr</searchLink>
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  Data: Technology audit and production reserves; Том 4, № 3(54) (2020): Chemical engineering; 29-35<br />Technology audit and production reserves; Том 4, № 3(54) (2020): Хімічна інженерія; 29-35<br />Technology audit and production reserves; Том 4, № 3(54) (2020): Химическая инженерия; 29-35
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  Data: <searchLink fieldCode="DE" term="%22огнетушащие+свойства%22">огнетушащие свойства</searchLink><br /><searchLink fieldCode="DE" term="%22компрессионная+пена%22">компрессионная пена</searchLink><br /><searchLink fieldCode="DE" term="%22тушение+пожаров%22">тушение пожаров</searchLink><br /><searchLink fieldCode="DE" term="%22блок+пеногенератора%22">блок пеногенератора</searchLink><br /><searchLink fieldCode="DE" term="%22системы+коммуникации+между+блоками%22">системы коммуникации между блоками</searchLink><br /><searchLink fieldCode="DE" term="%22УДК+614%2E842%2E615%22">УДК 614.842.615</searchLink><br /><searchLink fieldCode="DE" term="%220211+other+engineering+and+technologies%22">0211 other engineering and technologies</searchLink><br /><searchLink fieldCode="DE" term="%2202+engineering+and+technology%22">02 engineering and technology</searchLink><br /><searchLink fieldCode="DE" term="%22fire+extinguishing+properties%22">fire extinguishing properties</searchLink><br /><searchLink fieldCode="DE" term="%22compression+foam%22">compression foam</searchLink><br /><searchLink fieldCode="DE" term="%22fire+extinguishing%22">fire extinguishing</searchLink><br /><searchLink fieldCode="DE" term="%22foam+generator+unit%22">foam generator unit</searchLink><br /><searchLink fieldCode="DE" term="%22communication+systems+between+units%22">communication systems between units</searchLink><br /><searchLink fieldCode="DE" term="%2201+natural+sciences%22">01 natural sciences</searchLink><br /><searchLink fieldCode="DE" term="%22вогнегасні+властивості%22">вогнегасні властивості</searchLink><br /><searchLink fieldCode="DE" term="%22компресійна+піна%22">компресійна піна</searchLink><br /><searchLink fieldCode="DE" term="%22гасіння+пожеж%22">гасіння пожеж</searchLink><br /><searchLink fieldCode="DE" term="%22системи+комунікації+між+блоками%22">системи комунікації між блоками</searchLink><br /><searchLink fieldCode="DE" term="%220105+earth+and+related+environmental+sciences%22">0105 earth and related environmental sciences</searchLink>
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  Data: The object of research is the compression foam supply system. One of the most problematic areas in the design of compression foam supply systems is the need to obtain a certain type of foam with the necessary properties, depending on the class of fire for which it will be used to extinguish. It is necessary to take into account the technological process of foam formation, namely, the regulation of the flow of the foaming agent solution and compressed air, which are fed into the mixing chamber, where the foam is generated directly. It is important to ensure optimal parameters depending on the purpose of the foam outlet flow installation: flow rate, foam ratio and foam stability. In order to design a compression foam supply system with certain technological parameters, it is necessary to obtain these parameters analytically in advance, for which it is necessary to construct an appropriate mathematical model. In the course of the research, let’s use the Simulink graphical simulation environment (integrated into the MatLab software environment), which allows building dynamic models using separate blocks in the form of directed graphs. The structure of such a model is built on the basis of separate, independent blocks, which in themselves are separate mathematical models. New is the development of a mathematical model of a two-phase flow: a liquid phase consisting of a mixture of water with a foaming agent and a gas phase - air in the foam generator path as part of a block diagram of an installation for the case of generation of compression foam. And also the development of a scheme and communication algorithm for serially connected blocks of a common block diagram. This ensures the receipt of the calculated output data of the stationary mode of operation of the installation. The mathematical model developed in this work allows solving the following applied and scientific problems: – to carry out calculations of the input parameters of the installation, which will provide the required output parameters: flow power, frequency ratio, continuous generation time, foam resistance, determined by the purpose and features of the installation in conditions of extinguishing various types of fires; – to investigate the influence of the parameters of the foam generation insert of the installation on the expansion of the compression foam.
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      – SubjectFull: огнетушащие свойства
        Type: general
      – SubjectFull: компрессионная пена
        Type: general
      – SubjectFull: тушение пожаров
        Type: general
      – SubjectFull: блок пеногенератора
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      – SubjectFull: УДК 614.842.615
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      – SubjectFull: compression foam
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      – SubjectFull: fire extinguishing
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      – SubjectFull: foam generator unit
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      – SubjectFull: 0105 earth and related environmental sciences
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      – TitleFull: Mathematical modeling of gas-liquid flow in compressed air foam generation systems
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