Choice criteria of adsorbents for heat energy converters in ventilation systems

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dc.contributor.authorBelyanovskaya, E. A.
dc.contributor.authorLytovchenko, R. D.
dc.contributor.authorSukhyy, К. М.
dc.contributor.authorProkopenko, O. M.
dc.contributor.authorYeromin, O. O.
dc.contributor.authorSukha, I. V.
dc.date.accessioned2019-10-03T11:50:19Z
dc.date.available2019-10-03T11:50:19Z
dc.date.issued2019
dc.descriptionChoice criteria of adsorbents for heat energy converters in ventilation systems / E. A. Belyanovskaya, R. D. Lytovchenko, К. М. Sukhyy, O. M. Prokopenko, O. O. Yeromin, I. V. Sukha // Інноваційні енерготехнології – 2019: зб. пр. VII Міжнар. наук.-практ. конф., Одеса, 9–13 верес. 2019 р. / Одес. нац. акад. харч. технологій ; ред. кол.: О. Г. Бурдо, Ю. О. Левтринська, Я. О. Масельська ; міжнар. оргком.: Б. В. Єгоров (голова) та ін. – Одеса, 2019. – P. 179–184 : fig., tabl. – Ref.: 10 tit.ru_RU
dc.description.abstractThe criteria of adsorbent selection for adsorption transformers of thermal energy in ventilation systems are considered. The main characteristics of adsorbents that affected the structural parameters of the adsorption module are revealed. The method of determining the mass of the adsorbent and the volume of the adsorption unit in ventilation systems has been developed. The main factor affecting the volume of adsorbent is confirmed to be maximal adsorption.The advantages of "salt in the porous silica gel matrix" composites are compared with traditional silica gels. On the example of an adsorption regenerator of low-potential heat and moisture, the greater effectiveness of the composites "silica gel-sodium sulphate" is shown in comparison with the composite 'silica gel - sodium acetate'. According to the experimental data on the operation of the adsorption regenerator of heat and moisture on the basis of the composite 'silica gel – CH3COONa', the adequacy of the proposed algorithm for determining the temperature coefficient of useful efficiency has been confirmed. Suggested algorithm includes the calculation of the air volume passed through the layer of heat-storage material, water concentration in the air at the exit from the heat accumulator, adsorption, heat of adsorption, the final cold air temperature, air temperature after mixing cold air from the street and the warm air in the room at the inlet, the calculation of the concentration of water in the flow at the exit from the heat regenerator, the adsorption and heat of adsorption, the final temperature of the warm air, the air temperature after mixing the cold air from the street and the warm air from the room during the discharge, determination of the temperature efficiency coefficient, total adsorption and time to achieve maximum adsorption. The efficiency of the processes of operating adsorption regenerators based on composites 'silica gel - sodium sulphate' and 'silica gel-sodium acetate' in the conditions of the typical ventilation system of housing estates was compared. The parameters that correspond to the maximum value of the temperature efficiency coefficients: the humid air velocity is about 0.22 - 0.32 m/s and the time of switching of the flows up to 5 minutes. The influence of meteorological conditions on the efficiency of the adsorption regenerator has been confirmed. The higher efficiency of adsorption regenerators based on 'silica gel - sodium sulphate' composites is explained, which is explained by higher values of maximum adsorption, which helps to increase the heat of adsorption. The results of the research can be used for the selection of adsorbents for energy-efficient heat energy converters in ventilation systems for residential and warehouse premises.ru_RU
dc.identifier.urihttps://card-file.ontu.edu.ua/handle/123456789/10006
dc.subjectadsorptive heat energy converterru_RU
dc.subjectheat-moisture regeneratorru_RU
dc.subjecttemperature efficiency coefficientru_RU
dc.subjectcomposite adsorbentru_RU
dc.titleChoice criteria of adsorbents for heat energy converters in ventilation systemsru_RU
dc.typeArticleru_RU
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Інноваційні енерготехнології (Innovative energy technologies)