Document type
Conference papers
Document subtype
Poster without full or short paper
Title
Study of Thermophysical Properties of New Ionic Liquid Based Mixtures (1-Ethyl-3-Methylimidazolium Ethylsulfate/Water) for Absorption Refrigeration
Participants in the publication
Miguel Silva (Author)
Carla S.G.P. Queirós (Author)
Dep. Química e Bioquímica
CQE
Xavier Paredes (Author)
Dep. Química e Bioquímica
Ana F. Cristino (Author)
Dep. Química e Bioquímica
CQE
Maria da Soledade Santos (Author)
Dep. Química e Bioquímica
CQE
Fernando J.V. Santos (Author)
Dep. Química e Bioquímica
CQE
Carlos A. Nieto de Castro (Author)
Dep. Química e Bioquímica
CQE
Summary
The growing awareness on the effects of climate change, along with the increase in energy consumption worldwide, makes it urgent to find renewable energy alternatives and improve and develop more efficient equipment, since the majority of the energy produced is generated from burning fossil fuels [1,2]. A substantial portion of all that energy is used in temperature control devices (domestic and industrial). In the refrigeration field, more specifically in absorption refrigeration cycles, the development of more efficient and environmental acceptable working fluids has been gaining interest since the most used fluids (water/LiBr or water/NH3) can crystallize and are corrosive to metals [3,4]. \nIn recent years, ionic liquids were proposed as an alternative absorbent for absorption refrigeration cycles. Ionic liquids have been studied, due to their unique properties (for example low flammability, negligible vapor pressure, high chemical and thermal stabilities, easy recycling) in a wide range of applications (like in biomass processing, fuel processing and production, heat transport and storage, pharmaceutical and medicine research and many other fields) [3,5 ]. \nIn this work, the thermophysical properties of an ionic liquid, 1-ethyl-3-methylimidazolium ethylsulfate ([emim][EtSO4]) and its mixtures with water, have been studied in order to evaluate its performance as a new working pair for absorption chillers. The thermophysical properties studied are viscosity, electrical conductivity and surface tension. Total miscibility of the two liquids was found in the temperature range studied (283.15 to 343.15 K, at 0.1 MPa) \n\nReferences: \n[1] M.S. Fernandes, G.J.V.N. Brites, J.J. Costa, A.R. Gaspar, V.A.F. Costa, 2014, Review and future trends of solar adsorption refrigeration systems, Renewable and Sustainable Energy Reviews. 39 102–123. https://doi.org/10.1016/j.rser.2014.07.081.\n[2] I. Horuz, B. Kurt, 2010, Absorption heat transformers and an industrial application, Renewable Energy. 35 2175–2181. https://doi.org/10.1016/j.renene.2010.02.025.\n[3] E.-S. Abumandour, F. Mutelet, D. Alonso, 2017, Are Ionic Liquids Suitable as New Components in Working Mixtures for Absorption Heat Transformers?, in: S. Handy (Ed.), Progress and Developments in Ionic Liquids, InTech,. https://doi.org/10.5772/65756.\n[4] T.M. Becker, M. Wang, A. Kabra, S.H. Jamali, M. Ramdin, D. Dubbeldam, C.A. Infante Ferreira, T.J.H. Vlugt, 2018, Absorption Refrigeration Cycles with Ammonia–Ionic Liquid Working Pairs Studied by Molecular Simulation, Ind. Eng. Chem. Res. 57 5442–5452. https://doi.org/10.1021/acs.iecr.8b00442.\n[5] N.V. Plechkova, K.R. Seddon, 2007, Applications of ionic liquids in the chemical industry, Chem. Soc. Rev. 37 123–150. https://doi.org/10.1039/B006677J.
Editor(s)
IFP Energies Nouvelles
Date of Publication
2021-07-5
Institution
FACULDADE DE CIÊNCIAS DA UNIVERSIDADE DE LISBOA
Event
ESAT 2021 - 31st European Symposium on Applied Thermodynamics, France
Publication Identifiers
Address
online (COVID19)
Organizers
IFP Energies Nouvelles