78138 20200716101436.0 doi 10.3390/molecules24030638 sideral 110903 ART-2019-110903 eng Santoro, S. Experimental evaluation of the thermal polarization in direct contact membrane distillation using electrospun nanofiber membranes doped with molecular probes 2019 Access copy available to the general public Unrestricted Membrane distillation (MD) has recently gained considerable attention as a valid process for the production of fresh-water due to its ability to exploit low grade waste heat for operation and to ensure a nearly feed concentration-independent production of high-purity distillate. Limitations have been related to polarization phenomena negatively affecting the thermal efficiency of the process and, as a consequence, its productivity. Several theoretical models have been developed to predict the impact of the operating conditions of the process on the thermal polarization, but there is a lack of experimental validation. In this study, electrospun nanofiber membranes (ENMs) made of Poly(vinylidene fluoride) (PVDF) and doped with (1, 10-phenanthroline) ruthenium (II) Ru(phen) 3 were tested at different operating conditions (i.e., temperature and velocity of the feed) in direct contact membrane distillation (DCMD). The temperature sensitive luminophore, Ru(phen) 3 , allowed the on-line and non-invasive mapping of the temperature at the membrane surface during the process and the experimental evaluation of the effect of the temperature and velocity of the feed on the thermal polarization. info:eu-repo/grantAgreement/ES/DGA/B008-12 info:eu-repo/grantAgreement/ES/DGA/EU-EACEA/FPA2011-0014 info:eu-repo/grantAgreement/ES/DGA/EU-EACEA/SGA2012-1719 info:eu-repo/semantics/openAccess by http://creativecommons.org/licenses/by/3.0/es/ 3.267 2019 0.698 2019 CHEMISTRY, MULTIDISCIPLINARY 70 / 177 = 0.395 2019 Q2 T2 Pharmaceutical Science 2019 Q1 BIOCHEMISTRY & MOLECULAR BIOLOGY 141 / 297 = 0.475 2019 Q2 T2 Chemistry (miscellaneous) 2019 Q2 Drug Discovery 2019 Q2 Physical and Theoretical Chemistry 2019 Q2 Organic Chemistry 2019 Q2 Analytical Chemistry 2019 Q2 Medicine (miscellaneous) 2019 Q2 Molecular Medicine 2019 Q3 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Vidorreta, I. Coelhoso, I. Lima, J.C. Desiderio, G. Lombardo, G. Drioli, E. (orcid)0000-0002-4758-9380 Mallada, R. Universidad de Zaragoza Crespo, J. Criscuoli, A. Figoli, A. 5005 555 Universidad de Zaragoza Dpto. Ing.Quím.Tecnol.Med.Amb. Área Ingeniería Química 24, 3 (2019), 638 [13 pp] Molecules Molecules 1420-3049 620330 http://zaguan.unizar.es/record/78138/files/texto_completo.pdf Versión publicada 105845 http://zaguan.unizar.es/record/78138/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:78138 articulos driver 2020-07-16-08:55:43 ARTICLE