Research area. SISE- RED DE EXCELENCIA RED 2018-102679-T. SISTEMAS IÓNICOS PARA LA SOSTENIBILIDAD ENERGÉTICA
Topic: Optimization of the selection process for new additives, based on ionic liquids, for the property improvement of working fluids in several applications.
Deadline application. November 15th, 2020.
Contact. Daniel Salavera Muñoz (daniel.salavera(ELIMINAR)@urv.cat)
The research group, in which the researcher will join, to do the doctoral thesis, participates in a network of excellence researching about dense ionic systems. These systems include molten salts, ionic liquids and deep eutectic solvents.
The ionic liquids present a great interest as additive in working fluids, for several applications, due to its special properties. Its capacity to dissolve some gases, the nearly-null volatility or the high thermal stability that usually have, allow them be used as additive in small amounts, improving the properties of the working fluids, increasing the performances in the applications where they are used. The solubility is one of these properties, of great interest in absorption processes, as absorption refrigeration and heat pumps, or the selective capture of gases for separating or removing.
The adequate selection of the ionic liquid as additives depends on the application and the working fluid. Due to the large number of ionic liquids, and the special characteristics of the fluids and applications, this selection should be optimized considering different information, such as the thermodynamic and transport properties, thermal stability, toxicity, etc., or the analysis of the interactions between the different compounds by spectroscopic techniques, and the effect in the physic-chemical properties.
To optimize the selection of the additives based on ionic liquids by the thermodynamic and chemical characterization is the main objective of this doctoral thesis.