This page has only limited features, please log in for full access.
The performance of the adsorptive heat-moisture regenerators based on the composite materials ‘silica gel - sodium acetate’ and ‘silica gel – sodium sulphate’ have been studied. The mathematical model and algorithm for determining the basic operating parameters of adsorptive regenerator in the housing and communal services sector have been further developed. The proposed algorithm which involves calculating the air volume passed through the adsorbent layer, the final absolute humidity of air near the outlet from the regenerator, the adsorption and the heat of adsorption during inflow and outflow, the final temperature of the external cold air, the air temperature after mixing the cold external air and the internal warm air in the room near the warm end of the regenerator during inflow, the air temperature after mixing of the cold external air and the warm exhaust air from the premise near the cold end of regenerator during outflow, determining the temperature and moisture efficiency factors has been completed by computing the Reynolds criterion of the adsorbent layer, the coefficient of the hydraulic resistance, the pressure loss, the consumed power of ventilator, summarized adsorption and time to achieve maximal adsorption . The adequacy of suggested mathematical model is confirmed by sufficient correlation of experimental data and calculation results with the proposed algorithm. The performance of adsorptive regenerators based on the adsorbents ‘silica gel – CH3COONa’ and ‘silica gel – Na2SO4’ has been simulated in the conditions of the conventional ventilation system of living quarters. The efficiency of adsorptive regenerators has been compared when ‘silica gel – CH3COONa’ and ‘silica gel – Na2SO4’ used. The correlation of design and efficiency of adsorptive regenerators is shown.
Elena Belyanovskaya; Roman Lytovchenko; Kostyantyn Sukhyy; Mikhaylo Sukhyy; Mykhailo Gubynskyi; Irina Sykha. Performance of adsorptive heat-moisture regenerator. Scientific Works 2020, 84, 98 -103.
AMA StyleElena Belyanovskaya, Roman Lytovchenko, Kostyantyn Sukhyy, Mikhaylo Sukhyy, Mykhailo Gubynskyi, Irina Sykha. Performance of adsorptive heat-moisture regenerator. Scientific Works. 2020; 84 (1):98-103.
Chicago/Turabian StyleElena Belyanovskaya; Roman Lytovchenko; Kostyantyn Sukhyy; Mikhaylo Sukhyy; Mykhailo Gubynskyi; Irina Sykha. 2020. "Performance of adsorptive heat-moisture regenerator." Scientific Works 84, no. 1: 98-103.
The performance of an adsorptive heat-moisture regenerator based on a silica gel–sodium sulphate composite adsorbent was studied. The correlation between the adsorbent composition and structural characteristics of the laboratory-scale device was investigated. An algorithm for the calculation of the efficiency factors of the adsorptive regenerator was further developed. The suggested algorithm calculates the operational parameters, including the temperatures, humidities and volumetric flows of internal and external air, and estimates the regenerator’s performance via temperature and moisture efficiency factors, total adsorption and time needed to achieve maximum adsorption, air pressure loss and fan power input. The validity of the calculation results obtained using the proposed algorithm was confirmed experimentally. Temperature efficiency factor, air pressure loss and fan power consumption are crucial parameters for the estimation of the optimal operating regime of an adsorptive heat-moisture regenerator. The correlation between meteorological conditions and efficiency factors was assessed and applied in a simulation of residential house-scale air conditioning unit operation. Maximal values of temperature efficiency factor were found at internal and external air temperatures of 15 to 20 °C and −5 to 0 °C, respectively. Moisture efficiency factors were observed to reach their maximum at the absolute humidities of external and internal air of 4.0 to 5.0 g/m3 and 2.75 to 3.0 g/m3, respectively. The fan power consumption of the adsorptive heat-moisture regenerator was found to be comparable to or even lower than that of commercial air conditioning units used in comparably voluminous interiors.
Elena Belyanovskaya; Miroslav Rimár; Roman Lytovchenko; Miroslav Variny; Kostyantyn Sukhyy; Oleksandr Yeromin; Mikhailo Sykhyy; Elena Prokopenko; Irina Sukha; Mikhailo Gubinskyi; Ján Kizek. Performance of an Adsorptive Heat-Moisture Regenerator Based on Silica Gel–Sodium Sulphate. Sustainability 2020, 12, 5611 .
AMA StyleElena Belyanovskaya, Miroslav Rimár, Roman Lytovchenko, Miroslav Variny, Kostyantyn Sukhyy, Oleksandr Yeromin, Mikhailo Sykhyy, Elena Prokopenko, Irina Sukha, Mikhailo Gubinskyi, Ján Kizek. Performance of an Adsorptive Heat-Moisture Regenerator Based on Silica Gel–Sodium Sulphate. Sustainability. 2020; 12 (14):5611.
Chicago/Turabian StyleElena Belyanovskaya; Miroslav Rimár; Roman Lytovchenko; Miroslav Variny; Kostyantyn Sukhyy; Oleksandr Yeromin; Mikhailo Sykhyy; Elena Prokopenko; Irina Sukha; Mikhailo Gubinskyi; Ján Kizek. 2020. "Performance of an Adsorptive Heat-Moisture Regenerator Based on Silica Gel–Sodium Sulphate." Sustainability 12, no. 14: 5611.
Heating flame furnaces are the main type of furnaces used for heating and heat treatment of metal products in metallurgy and mechanical engineering. In the working chamber of a modern heating furnace, there should be neither high-temperature nor stagnation zones. One of the methods used to provide such combustion conditions is the application of distributed (volumetric) combustion. Owing to this method, heating quality is ensured by creating a uniform temperature field and equivalent heat exchange conditions, regardless of the placement of the charge in the working chamber of the furnace. In this work, we numerically study the volumetric combustion and influences of small- and large-scale recirculation ratios of furnace gases, the influence of temperature fluctuation on the regenerator nozzle, and the working parameters at the starting phase and reverse.
Miroslav Rimar; Andrii Kulikov; Marcel Fedak; Oleksandr Yeromin; Kostyantyn Sukhyy; Olena Gupalo; Elena Belyanovskaya; Rene Berta; Michal Smajda; Madhawa Rasuwan Ratnayake. Mathematical Model of a Heating Furnace Implemented with Volumetric Fuel Combustion. Processes 2020, 8, 469 .
AMA StyleMiroslav Rimar, Andrii Kulikov, Marcel Fedak, Oleksandr Yeromin, Kostyantyn Sukhyy, Olena Gupalo, Elena Belyanovskaya, Rene Berta, Michal Smajda, Madhawa Rasuwan Ratnayake. Mathematical Model of a Heating Furnace Implemented with Volumetric Fuel Combustion. Processes. 2020; 8 (4):469.
Chicago/Turabian StyleMiroslav Rimar; Andrii Kulikov; Marcel Fedak; Oleksandr Yeromin; Kostyantyn Sukhyy; Olena Gupalo; Elena Belyanovskaya; Rene Berta; Michal Smajda; Madhawa Rasuwan Ratnayake. 2020. "Mathematical Model of a Heating Furnace Implemented with Volumetric Fuel Combustion." Processes 8, no. 4: 469.
This article is focused on sol-gel technology of industrial production of composite sorbents «silica gel – sodium sulphate» and «silica gel – sodium acetate», which includes the next stages: preparation of aqueous solution of silicate glass and polymer quaternary ammonium salt (PQAS), formation of nuclei of the silicate phase, formation of silicon-oxygen matrix, drying and fractionation of sorbent. According to the developed technology, sorbents were prepared with a granula size of 3 – 5 mm. Bulk density is stated to be of 0.72 g/cm3 and 0.65 g/cm3 for composites «silica gel – sodium sulphate» and ‘silica gel – sodium acetate’. It is shown that composite sorbents are characterized by high water adsorption at the level of 0.42 – 0.66 g/g. Temperatures of regeneration of composites «silica gel – sodium sulphate» and ‘silica gel – sodium acetate’ are stated to be of 90 °C and 60 °C. Heats of adsorption of composites «silica gel – sodium sulphate» and «silica gel – sodium acetate» are 2200 kJ/kg and 1400 kJ / kg, respectively.
Yana Serhiienko; Kostyantyn Sukhyy; Elena Belyanovskaya; Elena Kolomiyets; Mykhailo Gubynskyi; Olga Tkalya; Irina Sukha; Oleksandr Zaichuk. TECHNOLOGY OF OBTAINING NEW MATERIALS FOR ADSORPTIVE HEAT ENERGY TRANSFORMATION TYPE OF «SILICA GEL – CRYSTALLINE HYDRATE». Journal of Chemistry and Technologies 2019, 27, 239 -246.
AMA StyleYana Serhiienko, Kostyantyn Sukhyy, Elena Belyanovskaya, Elena Kolomiyets, Mykhailo Gubynskyi, Olga Tkalya, Irina Sukha, Oleksandr Zaichuk. TECHNOLOGY OF OBTAINING NEW MATERIALS FOR ADSORPTIVE HEAT ENERGY TRANSFORMATION TYPE OF «SILICA GEL – CRYSTALLINE HYDRATE». Journal of Chemistry and Technologies. 2019; 27 (2):239-246.
Chicago/Turabian StyleYana Serhiienko; Kostyantyn Sukhyy; Elena Belyanovskaya; Elena Kolomiyets; Mykhailo Gubynskyi; Olga Tkalya; Irina Sukha; Oleksandr Zaichuk. 2019. "TECHNOLOGY OF OBTAINING NEW MATERIALS FOR ADSORPTIVE HEAT ENERGY TRANSFORMATION TYPE OF «SILICA GEL – CRYSTALLINE HYDRATE»." Journal of Chemistry and Technologies 27, no. 2: 239-246.
Operational parameters of adsorptive regenerator of low-potential heat and moisture based on composite adsorbents «silica gel - sodium sulphate» and «silica gel – sodium acetate» synthesized by sol – gel method were studied. Correlation of the parameters such as airflow rate, switching period, and temperatures of internal and external air, temperature efficiency factor was stated. Purposeful changing the temperature efficiency factor in rather wide ranges is shown when the switching period and airflow rate variated. Maximal values of temperature efficiency factors are stated at the airflow rates and switching over time of at most 0.22 – 0.32 m/s and 5 – 10 min., when composite «silica gel – sodium sulphate» used. Regenerators based on composites «silica gel – sodium sulphate» are stated to surpass devices based on «silica gel – sodium acetate» by at least 9 – 10 % of temperature efficiency factors. Efficiency of adsorptive regenerators is revealed to be affected by the meteorological conditions. Maximal values of temperature efficiency factor of regenerators based on composites «silica gel – sodium sulphate» are corresponded with the external air temperature of –5 – 0 °C and internal air temperature of 15 – 16 °C.
Elena Belyanovskaya; Roman Lytovchenko; Kostyantyn Sukhyyy; Александр Ерёмин; Irina Sukha; Elena Prokopenko. ЕКСПЛУАТАЦІЙНІ ХАРАКТЕРИСТИКИ АДСОРБЦІЙНИХ РЕГЕНЕРАТОРІВ ТЕПЛОТИ ТА ВОЛОГИ НА ОСНОВІ КОМПОЗИТІВ «СИЛІКАГЕЛЬ – НАТРІЙ СУЛЬФАТ» ТА «СИЛІКАГЕЛЬ – НАТРІЙ АЦЕТАТ». Journal of Chemistry and Technologies 2019, 27, 158 -168.
AMA StyleElena Belyanovskaya, Roman Lytovchenko, Kostyantyn Sukhyyy, Александр Ерёмин, Irina Sukha, Elena Prokopenko. ЕКСПЛУАТАЦІЙНІ ХАРАКТЕРИСТИКИ АДСОРБЦІЙНИХ РЕГЕНЕРАТОРІВ ТЕПЛОТИ ТА ВОЛОГИ НА ОСНОВІ КОМПОЗИТІВ «СИЛІКАГЕЛЬ – НАТРІЙ СУЛЬФАТ» ТА «СИЛІКАГЕЛЬ – НАТРІЙ АЦЕТАТ». Journal of Chemistry and Technologies. 2019; 27 (2):158-168.
Chicago/Turabian StyleElena Belyanovskaya; Roman Lytovchenko; Kostyantyn Sukhyyy; Александр Ерёмин; Irina Sukha; Elena Prokopenko. 2019. "ЕКСПЛУАТАЦІЙНІ ХАРАКТЕРИСТИКИ АДСОРБЦІЙНИХ РЕГЕНЕРАТОРІВ ТЕПЛОТИ ТА ВОЛОГИ НА ОСНОВІ КОМПОЗИТІВ «СИЛІКАГЕЛЬ – НАТРІЙ СУЛЬФАТ» ТА «СИЛІКАГЕЛЬ – НАТРІЙ АЦЕТАТ»." Journal of Chemistry and Technologies 27, no. 2: 158-168.
The operation processes of adsorptive solar refrigerators based on composite adsorbents ‘silica gel - sodium sulphate’ were studied. The correlation between the adsorbent composition and the coefficient of the energy performance of the device was stated. As a consequence of the decreasing of adsorbent mass, the coefficient of performance is increased when sodium sulphate content in the composite increased. Effect of the regeneration process parameters on the composite on the coefficient of performance of the adsorptive refrigenerator was stated. The growth of the coefficient of performance is shown to result from decreasing the difference between adsorbent temperature and regeneration temperature from 85 to 55°C. The maximum values of the coefficient of performance of studied solar adsorptive refrigenerator about of 1.14 are stated for composites containing about 20 wt. % silica gel and 80 wt. % sodium sulphate.
Elena A. Belyanovskaya; Grigoriy N. Pustovoy; Kostyntyn M. Sukhyy; Yana O. Sergiyenko; Oleksandr O. Yeromin; Elena M. Prokopenko; Mikhailo V. Gubinskyi; Ján Kizek; Ladislav Lukáč. Adsorptive Solar Refrigerators Based on Composite Adsorbents ’Silica Gel – Sodium Sulphate’. Civil and Environmental Engineering Reports 2019, 29, 200 -208.
AMA StyleElena A. Belyanovskaya, Grigoriy N. Pustovoy, Kostyntyn M. Sukhyy, Yana O. Sergiyenko, Oleksandr O. Yeromin, Elena M. Prokopenko, Mikhailo V. Gubinskyi, Ján Kizek, Ladislav Lukáč. Adsorptive Solar Refrigerators Based on Composite Adsorbents ’Silica Gel – Sodium Sulphate’. Civil and Environmental Engineering Reports. 2019; 29 (3):200-208.
Chicago/Turabian StyleElena A. Belyanovskaya; Grigoriy N. Pustovoy; Kostyntyn M. Sukhyy; Yana O. Sergiyenko; Oleksandr O. Yeromin; Elena M. Prokopenko; Mikhailo V. Gubinskyi; Ján Kizek; Ladislav Lukáč. 2019. "Adsorptive Solar Refrigerators Based on Composite Adsorbents ’Silica Gel – Sodium Sulphate’." Civil and Environmental Engineering Reports 29, no. 3: 200-208.
Е.а. Belyanovskaya; R.D. Lytovchenko; А.G. Mikhailov; К.м. Sukhyy; I.V. Sukha; Ukrainian State University of Chemical Technology. Algorithm for calculation of design and performance of open-type heat storage device based on composite adsorbents. Computer Modeling: Analysis, Control, Optimization 2019, 5, 1 .
AMA StyleЕ.а. Belyanovskaya, R.D. Lytovchenko, А.G. Mikhailov, К.м. Sukhyy, I.V. Sukha, Ukrainian State University of Chemical Technology. Algorithm for calculation of design and performance of open-type heat storage device based on composite adsorbents. Computer Modeling: Analysis, Control, Optimization. 2019; 5 (1):1.
Chicago/Turabian StyleЕ.а. Belyanovskaya; R.D. Lytovchenko; А.G. Mikhailov; К.м. Sukhyy; I.V. Sukha; Ukrainian State University of Chemical Technology. 2019. "Algorithm for calculation of design and performance of open-type heat storage device based on composite adsorbents." Computer Modeling: Analysis, Control, Optimization 5, no. 1: 1.
E.A. Belyanovskaya; R.D. Lytovchenko; K.M. Sukhyy; M.V. Gubinskyi; M.P. Sukhyy; National Metallurgical Academy Of Ukraine; SHEI Ukrainian State University of Chemical Technology. Calculation algorithm for adsorptive heat-moisture regenerator. Computer Modeling: Analysis, Control, Optimization 2018, 4, 1 .
AMA StyleE.A. Belyanovskaya, R.D. Lytovchenko, K.M. Sukhyy, M.V. Gubinskyi, M.P. Sukhyy, National Metallurgical Academy Of Ukraine, SHEI Ukrainian State University of Chemical Technology. Calculation algorithm for adsorptive heat-moisture regenerator. Computer Modeling: Analysis, Control, Optimization. 2018; 4 (2):1.
Chicago/Turabian StyleE.A. Belyanovskaya; R.D. Lytovchenko; K.M. Sukhyy; M.V. Gubinskyi; M.P. Sukhyy; National Metallurgical Academy Of Ukraine; SHEI Ukrainian State University of Chemical Technology. 2018. "Calculation algorithm for adsorptive heat-moisture regenerator." Computer Modeling: Analysis, Control, Optimization 4, no. 2: 1.
Silicophosphate organic–inorganic nanocomposites synthesized by sol–gel method were studied. Fractal characteristics were investigated by small-angle X-ray scattering and transmission electronic microscopy. A correlation between proton conductivity, composition and structure of system, as well as synthesis conditions is revealed. The dependence of nanocomposite conductivity on alternating current and relative media humidity from 23.5 to 96.5 % was stated, that is evidence of their availability as active media for humidity sensors.
Кostyantyn M. Sukhyy; Yuri P. Gomza; Elena Belyanovskaya; Valeri Klepko; Olga Shilova; Mikhaylo P. Sukhyy. Resistive humidity sensors based on proton-conducting organic–inorganic silicophosphates doped by polyionenes. Journal of Sol-Gel Science and Technology 2015, 74, 472 -481.
AMA StyleКostyantyn M. Sukhyy, Yuri P. Gomza, Elena Belyanovskaya, Valeri Klepko, Olga Shilova, Mikhaylo P. Sukhyy. Resistive humidity sensors based on proton-conducting organic–inorganic silicophosphates doped by polyionenes. Journal of Sol-Gel Science and Technology. 2015; 74 (2):472-481.
Chicago/Turabian StyleКostyantyn M. Sukhyy; Yuri P. Gomza; Elena Belyanovskaya; Valeri Klepko; Olga Shilova; Mikhaylo P. Sukhyy. 2015. "Resistive humidity sensors based on proton-conducting organic–inorganic silicophosphates doped by polyionenes." Journal of Sol-Gel Science and Technology 74, no. 2: 472-481.
Kostyantyn M. Sukhyy; Elena Belyanovskaya; Yaroslav N. Kozlov; Elena V. Kolomiyets; Mikhaylo P. Sukhyy. Structure and adsorption properties of the composites ‘silica gel–sodium sulphate’, obtained by sol–gel method. Applied Thermal Engineering 2014, 64, 408 -412.
AMA StyleKostyantyn M. Sukhyy, Elena Belyanovskaya, Yaroslav N. Kozlov, Elena V. Kolomiyets, Mikhaylo P. Sukhyy. Structure and adsorption properties of the composites ‘silica gel–sodium sulphate’, obtained by sol–gel method. Applied Thermal Engineering. 2014; 64 (1-2):408-412.
Chicago/Turabian StyleKostyantyn M. Sukhyy; Elena Belyanovskaya; Yaroslav N. Kozlov; Elena V. Kolomiyets; Mikhaylo P. Sukhyy. 2014. "Structure and adsorption properties of the composites ‘silica gel–sodium sulphate’, obtained by sol–gel method." Applied Thermal Engineering 64, no. 1-2: 408-412.
A new amperometric titration method was developed for quantitative determination of ferrate(VI) (FeVIO42−) in the 7.06×10−5−5.73×10−3 M concentration range. Chromium(III) hydroxide solution was used as the titrant. The diffusion current (Id) had a linear relationship with the concentration of ferrate(VI) and slopes were dependent on the concentration of NaOH. The amperometric titration could detect a lower concentration of ferrate(VI) than could potentiometric and colorimetric titrations. The method was applied successfully to determine concentrations of ferrate(VI), generated electrochemically, in strong alkaline solutions.
Dmitriy A. Golovko; Virender Sharma; Olga. V. Pavlova; Elena. A. Belyanovskaya; Igor. D. Golovko; Victoria. I. Suprunovich; Radek Zboril. Determination of submillimolar concentration of ferrate(VI) in alkaline solutions by amperometric titration. Open Chemistry 2011, 9, 808 -812.
AMA StyleDmitriy A. Golovko, Virender Sharma, Olga. V. Pavlova, Elena. A. Belyanovskaya, Igor. D. Golovko, Victoria. I. Suprunovich, Radek Zboril. Determination of submillimolar concentration of ferrate(VI) in alkaline solutions by amperometric titration. Open Chemistry. 2011; 9 (5):808-812.
Chicago/Turabian StyleDmitriy A. Golovko; Virender Sharma; Olga. V. Pavlova; Elena. A. Belyanovskaya; Igor. D. Golovko; Victoria. I. Suprunovich; Radek Zboril. 2011. "Determination of submillimolar concentration of ferrate(VI) in alkaline solutions by amperometric titration." Open Chemistry 9, no. 5: 808-812.
Processes of the formation of anodic films on the surface of tin in sodium hydroxide solutions were studied. The optimal conditions of the high-speed anodization, at which conversion coatings with high corrosion resistance can be formed, were determined.
Elena Belyanovskaya; D. A. Golovko; Felix Danilov. Anodic treatment of tin in alkaline electrolytes. Russian Journal of Applied Chemistry 2007, 80, 74 -77.
AMA StyleElena Belyanovskaya, D. A. Golovko, Felix Danilov. Anodic treatment of tin in alkaline electrolytes. Russian Journal of Applied Chemistry. 2007; 80 (1):74-77.
Chicago/Turabian StyleElena Belyanovskaya; D. A. Golovko; Felix Danilov. 2007. "Anodic treatment of tin in alkaline electrolytes." Russian Journal of Applied Chemistry 80, no. 1: 74-77.