TY - JOUR
T1 - Enhancing heat transfer in phase change materials
AU - Ziskind, Gennady
N1 - Funding Information:
This publication is part of a project that has received funding from the European Union’s research and innovation program under grant agreement No. 657466 (INPATH-TES).
Funding Information:
This publication is part of a project that has received funding from the European Union's Horizon 2020 research and innovation program under grant agreement No. 657466 (INPATH-TES).
Publisher Copyright:
© 2018 International Heat Transfer Conference. All rights reserved.
PY - 2018/1/1
Y1 - 2018/1/1
N2 - Phase change materials (PCM) are attracting a significant amount of attention these days, as they might be used in such diverse applications as thermal energy storage, thermal management electronics and energy efficient buildings. The number of research works in the field of PCM is growing very fast, and, as in many other fields of heat transfer, things are sometimes re-discovered or re-invented. This lecture's first aim is to give an historical perspective of heat transfer research in this rich and important field. It is shown that, in fact, the true interest in it arose first about half a century ago, in connection with the space exploration. In fact, many prominent heat transfer researchers contributed to this field, and it is demonstrated in the lecture how their insightful work remains more than relevant today. The second aim of this lecture is to present state-of-the-art of heat transfer enhancement in PCM, because these materials are notorious for their low thermal conductivity. Various enhancement methods are outlined and their merits are evaluated. Among those methods, we discuss extended surfaces, conductive additions, porous matrices, nanoparticles and PCM-based slurries. The presentation is based, to a very large extent, on the author's personal knowledge and experience in PCM systems, partially reflected in a number of very recent publications of our laboratory. Although “the big picture” is important, our attention is dedicated also to numerous essential details and subtleties, which can affect the processes significantly but are frequently overlooked.
AB - Phase change materials (PCM) are attracting a significant amount of attention these days, as they might be used in such diverse applications as thermal energy storage, thermal management electronics and energy efficient buildings. The number of research works in the field of PCM is growing very fast, and, as in many other fields of heat transfer, things are sometimes re-discovered or re-invented. This lecture's first aim is to give an historical perspective of heat transfer research in this rich and important field. It is shown that, in fact, the true interest in it arose first about half a century ago, in connection with the space exploration. In fact, many prominent heat transfer researchers contributed to this field, and it is demonstrated in the lecture how their insightful work remains more than relevant today. The second aim of this lecture is to present state-of-the-art of heat transfer enhancement in PCM, because these materials are notorious for their low thermal conductivity. Various enhancement methods are outlined and their merits are evaluated. Among those methods, we discuss extended surfaces, conductive additions, porous matrices, nanoparticles and PCM-based slurries. The presentation is based, to a very large extent, on the author's personal knowledge and experience in PCM systems, partially reflected in a number of very recent publications of our laboratory. Although “the big picture” is important, our attention is dedicated also to numerous essential details and subtleties, which can affect the processes significantly but are frequently overlooked.
KW - Conducting particles and matrices
KW - Heat sinks
KW - Heat transfer enhancement
KW - PCM slurries
KW - Phase-change materials
UR - http://www.scopus.com/inward/record.url?scp=85068339010&partnerID=8YFLogxK
U2 - 10.1615/ihtc16.kn.000018
DO - 10.1615/ihtc16.kn.000018
M3 - Conference article
AN - SCOPUS:85068339010
VL - 2018-August
SP - 369
EP - 383
JO - International Heat Transfer Conference
JF - International Heat Transfer Conference
SN - 2377-424X
T2 - 16th International Heat Transfer Conference, IHTC 2018
Y2 - 10 August 2018 through 15 August 2018
ER -