До розрахунку вентиляції виробничих приміщень за умов виділення декількох шкідливих речовин
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Date
2021
Journal Title
Journal ISSN
Volume Title
Publisher
Запорізький національний університет
Abstract
UKR: Визначено необхідну продуктивність вентиляційної установки для зменшення концентрації шкідливих речовин за умов одночасного виділення до повітря робочої зони декількох речовин. Розглянуто варіанти речовини різноспрямованої дії; речовини односпрямованої дії з адитивним ефектом; речовини односпрямованої дії з підсилюючим (потенційованим) ефектом; речовини односпрямованої дії з послаблюючим (антагоністичним) ефектом. Запропоновано рівняння, що описують продуктивність вентиляційної установки для зазначених варіантів надходження шкідливих речовин до повітря.
ENG: This article discusses the problem of finding the minimum necessary air exchange to remove several harmful substances from the volume of the working room with a different nature of action. The authors determined the required performance of the ventilation unit to reduce the concentration of harmful substances to acceptable values for a given period of time. The conditions for the simultaneous release of several harmful substances into the air of the working zone were considered. As a basis for analysis, the well-known main differential equation of air exchange (ventilation) was adopted. After appropriate mathematical transformations, the authors obtained equations describing the performance of the ventilation unit for four options for the entry of harmful substances into the air. The first option involves the release of substances of multidirectional action (that is, each substance has an effect on the body of a certain nature, independent of the effects of other substances). For example, it can be a substance with a general toxic effect, such as mercury, chemically asphyxiating, like carbon monoxide and a substance with fibrogenic action, like silicon dioxide. The second option is the allocation of unidirectional substances with the effect of summation (additive effect). Moreover, the effects of exposure to substances are summarized. Such properties are, for example, hydrocarbons: methane, ethane, propane, etc. The third option is the release of unidirectional substances with an enhancing effect, when one substance enhances the toxic effect of another (like ethanol and aniline). The fourth option is the release of unidirectional substances with a weakening effect, when one substance weakens the toxic effect of another (like chlorine and sulfur dioxide). For each option, dependencies are proposed that allow you to determine the minimum required flow rate of ventilation air.
ENG: This article discusses the problem of finding the minimum necessary air exchange to remove several harmful substances from the volume of the working room with a different nature of action. The authors determined the required performance of the ventilation unit to reduce the concentration of harmful substances to acceptable values for a given period of time. The conditions for the simultaneous release of several harmful substances into the air of the working zone were considered. As a basis for analysis, the well-known main differential equation of air exchange (ventilation) was adopted. After appropriate mathematical transformations, the authors obtained equations describing the performance of the ventilation unit for four options for the entry of harmful substances into the air. The first option involves the release of substances of multidirectional action (that is, each substance has an effect on the body of a certain nature, independent of the effects of other substances). For example, it can be a substance with a general toxic effect, such as mercury, chemically asphyxiating, like carbon monoxide and a substance with fibrogenic action, like silicon dioxide. The second option is the allocation of unidirectional substances with the effect of summation (additive effect). Moreover, the effects of exposure to substances are summarized. Such properties are, for example, hydrocarbons: methane, ethane, propane, etc. The third option is the release of unidirectional substances with an enhancing effect, when one substance enhances the toxic effect of another (like ethanol and aniline). The fourth option is the release of unidirectional substances with a weakening effect, when one substance weakens the toxic effect of another (like chlorine and sulfur dioxide). For each option, dependencies are proposed that allow you to determine the minimum required flow rate of ventilation air.
Description
В. Рижков: ORCID 0000-0002-0768-544X; К. Бєлоконь: ORCID 0000-0003-2000-4052; Є. Манідіна: ORCID 0000-0003-4090-9991; О. Троїцька: ORCID 0000-0003-0214-5476; Ю. Радченко: ORCID 0000-0002-5055-6707
Keywords
вентиляція, концентрація, продуктивність, рівняння, шкідлива речовина, КЕТтаОП
Citation
Рижков В. Г., Бєлоконь К. В., Манідіна Є. А., Троїцька О. О., Радченко Ю. М. До розрахунку вентиляції виробничих приміщень за умов виділення декількох шкідливих речовин. Збірник наукових праць «Металургія». 2020. Вип. 1. С. 125–131. DOI: 10.26661/2071-3789-2020-1-18.