BIBLIOS

  Ciências References Management System

Visitor Mode (Login)


Back

Publication details

Title
Thermophysical Properties of Ionic Liquids+Water Systems for Absorption Refrigeration

Authors
Fernando Santos
Dep. Química e Bioquímica
CQE-Ciências - Centro de Química Estrutural-Ciências
Manuel Matos Lopes
Dep. Química e Bioquímica
CQE-Ciências - Centro de Química Estrutural-Ciências
Maria José Lourenço
Dep. Química e Bioquímica
CQE-Ciências - Centro de Química Estrutural-Ciências
Ângela Santos
Dep. Química e Bioquímica
CQE-Ciências - Centro de Química Estrutural-Ciências
Maria Soledade Santos
Dep. Química e Bioquímica
CQB - Centro de Química e Bioquímica 
Carlos Nieto de Castro
Dep. Química e Bioquímica
CQE-Ciências - Centro de Química Estrutural-Ciências

Document type
Conference papers

Scope
International

Refereeing
Yes

Document type
Abstract

Summary
Ionic liquid systems have now been applied to many areas, with especially success in the areas of energy and environment. Absorption refrigeration can benefit substantially by the change of current working pairs by more convenient systems, environmentally harmless and energy more efficient. \\nIn our laboratory in Lisbon we have decided to study the thermophysical properties one type of alternative systems, namely ionic liquid + water mixtures. Measurements of density, thermal conductivity, surface tension and viscosity were performed for temperatures below 80ºC, at ambient pressure, using several ionic liquids, like [C2mim][dca], [C2mim][C2H5SO4], [C4mpyr][dca] and [P6 6 6 14][dca] [1-3]. The results obtained show different structures (and LL immiscibility gaps) of the liquid mixtures that seem to demonstrate that the intermolecular forces, polar and non-polar, including hydrogen bonding, play a fundamental role in defining the structure (local and bulk) of these mixtures. From structures dominated by the ionic liquid structure with expected behavior at low and medium water molar fractions, to minima and maxima in the properties (including immiscibility) for xwater greater than 0.8, plead of interesting phenomena was observed. In order to better understand this behavior, diffusion measurements will also be obtained.\\nWe present in this paper a brief outline of the data on the properties measured for each system, as well as a discussion about its possible use in absorption refrigeration.

Editor(s)
Professor Yuji Nagasaka

Date of Publication
2016-10-02

Institution
FACULDADE DE CIÊNCIAS DA UNIVERSIDADE DE LISBOA

Event
ATPC 2016, 2-6 October, 2016

Address
Yokohama, Japão

Organizers
Keio University, Japan

Publisher
Keio University, Japan

Collection
Abstract Book

Edition
2016
Volume
1

Number of pages
196
Starting page
33
Last page
33

Identifiers
URL - http://www.atpc2016.org/program/pdf/OS5-01.pdf

Keywords
Absorption refrigeration IOnic Liquids Aqueous Soltions


Export

APA
Fernando Santos, Manuel Matos Lopes, Maria José Lourenço, Ângela Santos, Maria Soledade Santos, Carlos Nieto de Castro, (2016). Thermophysical Properties of Ionic Liquids+Water Systems for Absorption Refrigeration. ATPC 2016, 2-6 October, 2016, 33-33

IEEE
Fernando Santos, Manuel Matos Lopes, Maria José Lourenço, Ângela Santos, Maria Soledade Santos, Carlos Nieto de Castro, "Thermophysical Properties of Ionic Liquids+Water Systems for Absorption Refrigeration" in ATPC 2016, 2-6 October, 2016, Yokohama, Japão, 2016, pp. 33-33, doi:

BIBTEX
@InProceedings{41257, author = {Fernando Santos and Manuel Matos Lopes and Maria José Lourenço and Ângela Santos and Maria Soledade Santos and Carlos Nieto de Castro}, title = {Thermophysical Properties of Ionic Liquids+Water Systems for Absorption Refrigeration}, booktitle = {ATPC 2016, 2-6 October, 2016}, year = 2016, pages = {33-33}, address = {Yokohama, Japão}, publisher = {Keio University, Japan} }