Yevdokymenko Y. Energy-saving air conditioning system with a semi-permeable membrane storage for premises of seeds of gourd family

Evdokimenko Y.M. Energy-saving air conditioning system with a semi-permeable membrane storage for premises of seeds of gourd family - Manuscript. Dissertation for the degree of Candidate of Technical Sciences on speciality 05.23.03 "Ventilation, lighting and district heating ". - Kyiv National University of Civil Engineering and Architecture, Ministry of Education and Science of Ukraine, Kyiv, 2021. The thesis is devoted to solving the topical issue of reducing energy consumption in the processes of air treatment, namely dehumidification of supply air in air conditioning systems (hereinafter AC). In this work, theoretical and experimental studies of air drying on semi-permeable PVC membranes were carried out. A physical model of air movement through the elementary plane of membrane along the membrane dehumidifying module is presented and specified in the work. A physical model of moisture vapor penetration through a semi-permeable, porous PVC membrane is presented. Using methods of in-depth exergoeconomic analysis, comparative studies of losses of exergy of humid air, taking into account components of the exergy of moist air, exergy efficiency indicators, and exergy costs for AC with condensation, adsorption and membrane drying of air are conducted. For the analysis of losses of exergy in AC, the flow diagrams of exergy are offered. The scheme of modernization of AC with application of membrane air drying for pumpkin seeds storage room is offered. Key words: in-depth exergy analysis, in-depth exergy analysis, flow exergy diagrams, membrane air drying, air conditioning system, exergy efficiency, exergy efficiency "net", exergy efficiency "gross", permeability factor.