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 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: antonio.atienza@urv.cat alberto.coronas@urv.cat

Author identifier: 0000-0001-7185-743X 0000-0002-6109-3680

Record's date: 2023-02-19

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: http://repositori.urv.cat/ca/proteccio-de-dades/

Papper original source: Energies. 14 (2):

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), -. DOI: https://doi.org/10.3390/en14020505

Article's DOI: 10.3390/en14020505

Entity: Universitat Rovira i Virgili

Journal publication year: 2021

Publication Type: Journal Publications