Liquid desiccant based two-stage evaporative cooling system using reverse osmosis (RO) process for regeneration |
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| Affiliation: | 1. Department of Biomolecular Chemistry, Faculty of Medicine, Medical University of Lodz, 92-215 Lodz, Poland;2. Department of Medical Science, Section of Pharmacology and Italian Institute of Neuroscience, University of Ferrara, 44121 Ferrara, Italy;3. Service Commun d’Analyse Comportementale (SCAC), Institut de Recherche et d’Innovation Biomédicale (IRIB), Faculté de Médecine et Pharmacie, Université de Rouen, 76183 Rouen Cedex, France;4. Centre National de la Recherche Scientifique (CNRS), France;5. Institute of Biochemistry, Biological Research Centre of Hungarian Academy of Sciences, 6701 Szeged, Hungary;6. Faculty of Chemistry, University of Wroclaw, 50-383 Wroclaw, Poland;1. Department of Biomolecular Chemistry, Medical University of Lodz, Poland;2. Faculty of Chemistry, University of Wroclaw, Poland;1. Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy, University of Helsinki, Finland;2. Department of Materials Science and Engineering, School of Chemical Technology, Aalto University, Finland;3. Laboratory of Analytical Chemistry, Department of Chemistry, University of Helsinki, Finland;1. Ophthalmic Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran;2. National Institute of Genetic Engineering and Biotechnology, Tehran, Iran;3. Iranian Blood Transfusion Organization Research Center, Tehran, Iran;4. Department of Ophthalmology, Boston University School of Medicine, Boston, USA;1. College of Big Data and Information Engineering, Guizhou University, Guiyang 550025, China;2. College of Physics, Guizhou University, Guiyang 550025, Guizhou, China |
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| Abstract: | This paper presents preliminary findings of the energy analysis of a cooling system with two-stage evaporative coolers using liquid desiccant dehumidifier between the stages. The proposed evaporative cooling system utilizes air humidity for cooling in humid areas and requires no additional water supply. The major energy requirement associated with this cooling system is the energy for regenerating the weak liquid desiccant. Reverse osmosis process is considered for regeneration by mechanical energy and MFI zeolite membrane is proposed for separation of water from the weak desiccant solution. Energy analysis has been carried out for the proposed cooling system. The COP of the proposed cooling system is defined as the cooling effect by the mass rate of water evaporated in the system divided by the amount of energy supplied to the system, that is, the COP is independent of the energy source. |
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