Обладнання хімічних виробництві підприємств будівельних матеріалів

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https://ela.kpi.ua/handle/123456789/32433

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Перегляд Обладнання хімічних виробництві підприємств будівельних матеріалів за Назва

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    Absorber of the air purification unit from ammonia
    (КПІ ім. Ігоря Сікорського, 2025) Sytnyk, V. M.; Haidai, S. S.
    An analysis of the requirements for the absorption equipment of an air purification unit from ammonia has been provided.
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    Analysis of bischofite drying curves
    (КПІ ім. Ігоря Сікорського, 2025) Filipov, V. V.; Novokhat, O. A.
    This study presents the obtained drying curves of bischofite under low-temperature infrared drying conditions. Additionally, an analysis of the drying curves is provided.
  • Ескіз
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    Application of rotary-pulsation device in invert sugar syrup technology
    (КПІ ім. Ігоря Сікорського, 2025) Obodovych, O. M.; Pereiaslavtseva, О. О.; Rezakova, T. A.; Chernyavsky, K. E.; Buliy, Y. V.
    Experimental studies have proven the effectiveness of using a rotarypulsation apparatus in the technology of invert sugar syrups, which allows intensifying the process of their production. Comparative characteristics of invert sugar syrup obtained by the existing and proposed methods are presented.
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    Assessment of the efficiency of metal corrosion inhibitors for water circuit systems in municipal utilities
    (КПІ ім. Ігоря Сікорського, 2025) Overchenko, T. A.; Ivanenko, O. I.; Romenska, O. O.; Apanovych, L. V.
    The article considers the problem of corrosion in aquatic environments, which is relevant for water circulation systems in municipal services. The effectiveness of various corrosion inhibitors, in particular OEDPC, TPFN, NTMPK, GMFN, hypan and their compositions with zinc ions (Zn2), in tap water of Kyiv city was studied by massometry. It was found that some of the studied compounds, in particular hypan and GMFN in combination with Zn2, provide a high degree of protection of St3 steel - up to 96%. It was found that the effectiveness of inhibitors depends on their concentration and the presence of a synergistic effect when used in combination with metal ions. The results obtained indicate the prospects for the use of new composite reagents to prevent corrosion in water supply systems.
  • Ескіз
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    Assessment of the efficiency of metal corrosion inhibitors for water circuit systems in municipal utilities
    (КПІ ім. Ігоря Сікорського, 2025) Overchenko, T. A.; Ivanenko, O. I.; Romenska, O. O.; Apanovych, L. V.
    The article considers the problem of corrosion in aquatic environments, which is relevant for water circulation systems in municipal services. The effectiveness of various corrosion inhibitors, in particular OEDPC, TPFN, NTMPK, GMFN, hypan and their compositions with zinc ions (Zn²⁺), in tap water of Kyiv city was studied by massometry. It was found that some of the studied compounds, in particular hypan and GMFN in combination with Zn²⁺, provide a high degree of protection of St3 steel - up to 96%. It was found that the effectiveness of inhibitors depends on their concentration and the presence of a synergistic effect when used in combination with metal ions. The results obtained indicate the prospects for the use of new composite reagents to prevent corrosion in water supply systems.
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    Constant interaction of forestry enterprises with nearby heat-generating facilities for mutual development
    (КПІ ім. Ігоря Сікорського, 2025) Belyaev, G.; Belyaeva, I.; Zhukov, К.; Stetsuk, V.
    The paper is devoted to the organization of long-term sustainable interaction of forest farms and enterprises close to them with mandatory technical and organizational re-equipment of their fixed assets.
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    Construction of temperature fields using computer simulation
    (КПІ ім. Ігоря Сікорського, 2025) Novokhat, O. A.; Honcharenko, D. I.
    The obtained temperature field distribution inside the 3D printer nozzle during polymer melting is presented. Additionally, the temperature field distribution within the resulting polymer flow inside the channel is shown.
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    Determination of the average thickness of strips under uniaxial shear deformation when mixing polymer melts
    (КПІ ім. Ігоря Сікорського, 2025) Trachuk, Y. V.; Shved, M. P.
    Розглянуто механізм ламінарного змішування при одновісному зсуві. Проаналізовано можливість оцінки якості змішування за допомогою ширини смуг, котра залежить від величини накопиченої матеріалом деформації зсуву. Надано рівняння для розрахунку товщини смуг.
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    Development of a research and industrial heat and mass exchanger-utilizer for highly dusty gas streams
    (КПІ ім. Ігоря Сікорського, 2025) Кremnev, V.; Timoshchenko, A.; Коrbut, N.
    The paper is devoted to the development of a research and industrial heat and mass exchanger-utilizer suitable for highly dusty gas streams.
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    Ethanol production
    (КПІ ім. Ігоря Сікорського, 2025) Postovyi, D. V.; Haidai, S. S.
    The study presents an analysis and description of the ethanol production system.
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    Experimental setup for studying the drying of bischofite using infrared radiation
    (КПІ ім. Ігоря Сікорського, 2025) Filipov, V. V.; Novokhat, O. A.
    A description of the experimental setup for drying bischofite using infrared radiation under various drying modes is provided. Methods for adjusting the drying parameters of bischofite are specified. The parameters that need to be monitored and recorded during experimental studies are proposed.
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    Experimental studies on the influence of technological parameters on the delignification of wheat straw
    (КПІ ім. Ігоря Сікорського, 2025) Obodovych, O. M.; Pereiaslavtseva, О. О.; Stepanova, O. E.; Sheiko, T. V.
    The paper presents the results of experimental studies of the influence of technological parameters of preliminary preparation of wheat straw for hydrolysis in a rotary-pulsation apparatus on the process of lignin removal. It was determined that increasing the initial temperature of the mixture from 180C to 900C allows to increase the yield of lignin by 2 times.
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    Heat exchanger modernization for methanol distillation unit
    (КПІ ім. Ігоря Сікорського, 2025) Stepura, G. A.; Stepaniuk, A. R.
    The heat exchanger scheme is described, the advantages and disadvantages of its design are given. Proposals for the modernization of the heat exchanger design are given, and the justification for this modernization is also presented.
  • Ескіз
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    Impact of complex hydromechanical treatment on the size of particles of plant raw materials in the fuel ethanol technology
    (КПІ ім. Ігоря Сікорського, 2025) Oleksandr, Obodovych; Yurii, Bulii; Vitalii, Sydorenko; Parchenko, Volodymyr; Khomenko, Valentyna
    The impact of the pulsation frequency of the working unit of the rotor-pulsation apparatus on the particle size of aqueous dispersions of wheat straw was considered. It was determined that increasing the pulsation frequency from 1 to 3 kHz reduces the number of cycles from 42 to 30. When changing the pulsation frequency from 1 to 5 kHz, the number of cycles decreases to 27.
  • Ескіз
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    Increasing aeration efficiency in airlift apparatus
    (КПІ ім. Ігоря Сікорського, 2025) Pereiaslavtsev, О. M.; Pereiaslavtseva, О. О.; Protsenko, E. M.
    Analytical and experimental studies were conducted, which allowed determining the separation velocity of the vertical movement of the gas-liquid mixture in the liquid layer depending on the operational and design features of the airlift apparatus.
  • Ескіз
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    Influence of pre-treatment on the heat of evaporation of water from pumpkin parenchymal tissues
    (КПІ ім. Ігоря Сікорського, 2025) Dmytrenko, N.
    The effect of various types of pretreatment on the heat of evaporation of moisture from pumpkin parenchymal tissues was researched. This data is necessary to development of optimal pumpkin drying technology.
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    Justification of the centrifuge design for the production of high-density polyethylene
    (КПІ ім. Ігоря Сікорського, 2025) Husarova, O. V.; Bielokon, A. I.; Husarov, V. M.
    Scientific sources and patents of different countries are reviewed and analysed. Based on the generalisation of literature data, the choice of a centrifuge for the production of high-density polyethylene is substantiated.
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    Justification of the choice of fermenter design in the production of feed yeast
    (КПІ ім. Ігоря Сікорського, 2025) Husarova, O. V.; Chukhlib, Y. S.; Husarov, V. M.
    Scientific and technical sources and patents of different countries have been reviewed and analysed in order to justify the choice of fermenter design. On the basis of generalisation of literature data, the apparatus for the production of fodder yeast was selected.
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    Measurement of viscosity of fiber-reinforced concrete mixture by vibro-extrusion
    (КПІ ім. Ігоря Сікорського, 2025) Andreiev, Igor
    The features of the flow of Newtonian fluids between flat fixed walls that converge and in a flat symmetrical rectangular channel that narrows are considered. It is proposed to determine the decrease in the mixture flow rate in a rectangular channel compared to the flow between the plates using the braking coefficient . A graph of the dependence of the braking coefficient on the ratio of the sides of the cross-section of the rectangular channel is constructed. 2 formulas are proposed for calculating the braking coefficient. A comparative analysis of the proposed formulas gives a good convergence of the calculation results, the average approximation error is 0.0126%, which indicates a high level of coincidence of the regression equation with a more complex analytical formula. A formula is proposed for calculating the viscosity of fiber-reinforced concrete mixtures by the time of material leakage from a vibroextruder.
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    Method of thermal contact melting of bases for soft dosage forms
    (КПІ ім. Ігоря Сікорського, 2025) Stepanova, O. Ye.; Posunko, D. V.; Danko, I. O.; Chalaev, M. D.; Shavrin, Yu. V.
    The method for the thermal contact heating and melting of ointment bases for the manufacture of soft dosage forms which is introduced at pharmaceutical companies is presented and an installation for it implementation is developed.