Calculation algorithm for adsorptive heat-moisture regenerator
Journal Title: Комп’ютерне моделювання: аналіз, управління, оптимізація - Year 2018, Vol 2, Issue 2
Abstract
The work is devoted to the development of an efficient algorithm for calculating the performance characteristics of adsorption regenerator of heat and moisture for the air conditioning and ventilation system. The following calculation method is proposed: the calculation of the volume of air passing through the layer of heat-accumulating material, the concentration of water in the flow at the exit from the thermal accumulator, the adsorption, the heat of adsorption, the final temperature of the cold air, the air temperature after mixing the 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 accumulator, the volume of air passing through the layer of heat-accumulating material, the final temperature of the warm district air temperature after mixing the cold air from the street and the warm air from the room at the outlet, determining the temperature coefficient of efficiency, total adsorption and time to achieve maximum adsorption. The correlation of absolute humidity and air temperatures near the warm and cold extremities of the regenerator, as well as the temperature coefficients of efficiency established according to the results of calculations using proposed algorithm and research method, is shown. The mathematical modeling of the processes of operation of adsorption regenerators of heat and moisture on the basis of "silica gel – sodium sulfate" composites in the conditions of the typical ventilation system of residential premises is carried out. Influence on the temperature coefficient of efficiency of air flows switching time, air velocity, as well as absolute humidity and temperature of external and internal air under stationary conditions is established. The maximum values of thermal efficiency coefficients were recorded at the velocity of humid air of about 0.22–0.32 m/s and the switching time of 5-10 minutes. The effect of the velocity are shown of moist air flow and the absolute humidity of the wet air at the time of reaching maximum adsorption are shown. The results of the study can be used in the development of energy efficient air conditioning and ventilation systems, as well as drainage modules for residential and warehouse facilities.
Authors and Affiliations
Елена Анатольевна Беляновская, Р. Д. Литовченко, Константин Михайлович Сухой, М. В. Губинский, Михаил Порфирьевич Сухой
Keywords
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- EP ID EP610374
- DOI 10.32434/2521-6406-2018-4-2-3-8
- Views 158
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