Performance of an Adsorptive Heat-Moisture Regenerator Based on Silica Gel–Sodium Sulphate

Elena Belyanovskaya, Miroslav Rimár, Roman D. Lytovchenko, Miroslav Variny, Kostyantyn M. Sukhyy, Oleksandr O. Yeromin, Mikhailo P. Sykhyy, Elena M. Prokopenko, Irina V. Sukha, Mikhailo V. Gubinskyi and Ján Kizek
Additional contact information
Elena Belyanovskaya: Department of Power Engineering, State Higher Education Institution, Ukrainian State University of Chemical Technology, Gagarine av. 8, 49005 Dnipro, Ukraine
Miroslav Rimár: Department of Process Engineering, Faculty of Manufacturing Technologies of the Technical University of Košice with a seat in Prešov, Technical University of Košice, Štúrova 31, 080 01 Prešov, Slovakia
Roman D. Lytovchenko: Department of Power Engineering, State Higher Education Institution, Ukrainian State University of Chemical Technology, Gagarine av. 8, 49005 Dnipro, Ukraine
Miroslav Variny: Department of Chemical and Biochemical Engineering, Faculty of Chemical and Food Technology, Slovak University of Technology in Bratislava, Radlinského 9, 812 37 Bratislava, Slovakia
Kostyantyn M. Sukhyy: Department of Power Engineering, State Higher Education Institution, Ukrainian State University of Chemical Technology, Gagarine av. 8, 49005 Dnipro, Ukraine
Oleksandr O. Yeromin: Department of Ecology, Heat Transfer and Labour Protection, National Metallurgical Academy of Ukraine, Gagarine av. 4, 49600 Dnipro, Ukraine
Mikhailo P. Sykhyy: Department of Power Engineering, State Higher Education Institution, Ukrainian State University of Chemical Technology, Gagarine av. 8, 49005 Dnipro, Ukraine
Elena M. Prokopenko: Department of Ecology, Heat Transfer and Labour Protection, National Metallurgical Academy of Ukraine, Gagarine av. 4, 49600 Dnipro, Ukraine
Irina V. Sukha: Department of Natural and Synthetic polymers, Fast and Food products, State Higher Education Institution, Ukrainian State University of Chemical Technology, Gagarine av. 8, 49005 Dnipro, Ukraine
Mikhailo V. Gubinskyi: Department of Industrial Power System, National Metallurgical Academy of Ukraine, Gagarine av. 4, 49600 Dnipro, Ukraine
Ján Kizek: Department of Process Engineering, Faculty of Manufacturing Technologies of the Technical University of Košice with a seat in Prešov, Technical University of Košice, Štúrova 31, 080 01 Prešov, Slovakia

Sustainability, 2020, vol. 12, issue 14, 1-15

Abstract: 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/m 3 and 2.75 to 3.0 g/m 3 , 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.

Keywords: adsorptive heat-moisture regenerator; air conditioning; temperature efficiency factor; moisture efficiency factor; composite adsorbent; energy consumption (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2020
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