BIBLIOS

Document type
Conference papers

Document subtype
Abstract

Title
Understanding the Influence of Nanotubes and Graphene Interactions with Ionic Liquids on Heat Transfer

Participants in the publication
Carlos Alberto Nieto de Castro (Author)
Dep. Química e Bioquímica
CQE

Summary
The development of nanofluids in the last 20 years led to many attempts to apply efficiently the discovered enhancements in thermal conductivity caused by the presence of nanoparticles in the common heat transfer liquids, from low to moderate temperatures. However, the need to obtain data for several systems led the authors to many artificial conclusions that differ from laboratory to laboratory and, sometimes, in the same laboratory. \n\nThe main problems are the preparation of the nanofluids, the characterization of the nanomaterials particles employed, and the instrumentation used to measure thermal conductivity. In addition, the understanding of the structure of nanofluid, namely the interaction of the nanoparticle with the bulk base fluid is fundamental, the interface size (extension in space), as the most significant theories of heat transfer in nanofluids are strongly dependent on it.\n\nIonic Liquids have proved to be a very promising type of base fluids, due to their specific interactions with the nanoparticles/nanotubes. Our efforts in studying these nanofluids led to several conclusions that make IoNanofluids a very sustainable type of heat transfer agents, namely for solar applications.\n\nIt is the purpose of this paper to analyse the current status of our knowledge of IoNanofluids preparation, behaviour and properties, with specially emphasis in the heteromolecular interactions and its influence on the thermal conductivity of nanofluids. A detailed analysis of the most adequate methods for the measurement of this property in nanofluids will also be presented.

Editor(s)
Faculdade de Ciências da Universidade de Lisboa


Institution
FACULDADE DE CIÊNCIAS DA UNIVERSIDADE DE LISBOA

Event
1st European Symposiun on Nanofluids, Abstracts Collection

Publication Identifiers
ISBN - 9789729665356

Address
Lisboa, Portugal

Organizers
Faculdade de Ciências da Universidade de Lisboa

Publisher
Faculdade de Ciências da Universidade de Lisboa

Collection
Abstract Book



Document Identifiers
URL - http://esnf2017.campus.ciencias.ulisboa.pt/

Keywords
Ionanofluids CNT's Graphene Molecular Interactions Thermal Conductivity