Author, as appears in the article.: Prieto, Juan; Atienza-Marquez, Antonio; Coronas, Alberto
Department: Enginyeria Mecànica
URV's Author/s: Atienza Márquez, Antonio / Coronas Salcedo, Alberto / Prieto González, Juan
Keywords: Multi-objective optimization Hybrid liquid desiccant system Falling film air-solution contactor Experimental validation Dynamic modeling Air conditioning
Abstract: This paper presents an experimentally validated, dynamic model of a hybrid liquid desiccant system. For this purpose, we developed new components for the air-solution contactors, which are of the non-adiabatic falling-film type with horizontal tubes (made of improved polypropylene) and the solution tanks. We also provide new experimental correlations for both the tube-solution heat transfer coefficient and the mass transfer coefficient on the airside as a function of the air velocity. To validate the model, the results obtained from the dynamic simulations were compared with those obtained by monitoring a demonstration unit installed in a sports center in Taipei (Taiwan). Once validated, the model was used to perform a sensitivity analysis at different operational conditions, such as the inlet water temperatures in the air-solution contactors and the LiCl mass fraction at which the system operates. The results of the sensitivity analysis were used to optimize the seasonal performance in terms of comfort and energy required by the system. Compared with a conventional air-handling unit that controls air temperature and humidity, the annual energy savings of the liquid desiccant systems are 17%.
Thematic Areas: Zootecnia / recursos pesqueiros Renewable energy, sustainability and the environment Renewable energy, sustainability and the environm Interdisciplinar General computer science Fuel technology Engineering (miscellaneous) Engenharias iv Engenharias iii Engenharias ii Energy engineering and power technology Energy (miscellaneous) Energy & fuels Electrical and electronic engineering Economia Control and optimization Ciências ambientais Ciências agrárias i Ciência da computação Building and construction Biotecnología Biodiversidade Astronomia / física
licence for use: https://creativecommons.org/licenses/by/3.0/es/
Author's mail: alberto.coronas@urv.cat juan.prieto@urv.cat
Author identifier: 0000-0002-6109-3680 0000-0001-9036-4315
Record's date: 2024-10-12
Journal volume: 14
Papper version: info:eu-repo/semantics/publishedVersion
Link to the original source: https://www.mdpi.com/1996-1073/14/2/505
Licence document URL: https://repositori.urv.cat/ca/proteccio-de-dades/
Papper original source: Energies. 14 (2): 505-
APA: Prieto, Juan; Atienza-Marquez, Antonio; Coronas, Alberto (2021). Modeling and Dynamic Simulation of a Hybrid Liquid Desiccant System with Non-Adiabatic Falling-Film Air-Solution Contactors for Air Conditioning Applications in Buildings. Energies, 14(2), 505-. DOI: https://doi.org/10.3390/en14020505
Article's DOI: https://doi.org/10.3390/en14020505
Entity: Universitat Rovira i Virgili
Journal publication year: 2021
Publication Type: Journal Publications