Доступ предоставлен для: Guest
Портал Begell Электронная Бибилиотека e-Книги Журналы Справочники и Сборники статей Коллекции
Computational Thermal Sciences: An International Journal
ESCI SJR: 0.249 SNIP: 0.434 CiteScore™: 1.4

ISSN Печать: 1940-2503
ISSN Онлайн: 1940-2554

Computational Thermal Sciences: An International Journal

DOI: 10.1615/.2014010938
pages 329-339

THERMAL CONDUCTIVITY ENHANCEMENT OF PCMS FOR AUTOMOTIVE THERMAL ENERGY STORAGE APPLICATIONS: EXPERIMENTAL AND NUMERICAL INVESTIGATIONS

Julien Tissot
Valeo Thermal Systems, 8 rue Louis Lormand, Le Mesnil Saint Denis Cedex, 78321 La Verriere, France
Michael Lissner
Valeo Thermal Systems, 8 rue Louis Lormand, Le Mesnil Saint Denis Cedex, 78321 La Verriere, France; Irstea GPAN LGP2ES (EA21), 1 rue Pierre Gilles de Gennes, 92761 Antony Cedex, France
Kamel Azzouz
Valeo Thermal Systems, 8 rue Louis Lormand, Le Mesnil Saint Denis Cedex, 78321 La Verriere, France
Denis Leducq
Irstea GPAN LGP2ES (EA21), 1 rue Pierre Gilles de Gennes, 92761 Antony Cedex, France

Краткое описание

This study focuses on the evaluation of the equivalent thermal conductivity of a composite material comprising a phase change material (PCM) and periodic aluminum fins. This composite is a part of a heat accumulator. The evolution of the thermal conductivity with the fin volume fraction was studied through experimental measurements and numerical simulations. Two numerical models were developed on the basis of the resolution of 2D heat transfer equations with the finite volume method in order to determine the impact of the fin volume fraction on the thermal conductivity of the medium. In the first model, fins and PCM were modeled, while in the second model, the fins were not directly simulated but taken into account in terms of equivalent conductivity. A prototype was evaluated on a test bench in order to calibrate the equivalent conductivity and validate the modeling. A numerical parametric study was performed and showed that the equivalent conductivity can increase up to 150 times the PCM conductivity with a better distribution of the fins in the PCM. A correlation of the PCM equivalent thermal conductivity as a function of fin pitch is given for a range of aluminum volume fractions from 0 to 65%.


Articles with similar content:

COMPUTATIONAL AND EXPERIMENTAL INVESTIGATION ON THERMAL INSULATION CAPABILITIES OF RICE-HUSK FILLED EPOXY COMPOSITES
Computational Thermal Sciences: An International Journal, Vol.4, 2012, issue 2
Arun Kumar Rout, Alok Satapathy
NUMERICAL AND EXPERIMENTAL INVESTIGATIONS ON THE ELECTRICAL CONDUCTIVITY OF FOAM MATERIALS
Special Topics & Reviews in Porous Media: An International Journal, Vol.2, 2011, issue 1
Wei Wei, Zhenming Yang, Hongtao Zhang, Jinsong Zhang, Weigang Xu
NUMERICAL INVESTIGATION OF AIR PERMEABILITY IN FIBERS WITH BIRD FEATHER-LIKE ARRANGEMENTS
Journal of Porous Media, Vol.23, 2020, issue 3
Majid Sedghi, Mohammad Ghane, Ahmad Saboonchi
A COMBINED ANALYTICAL-NUMERICAL MODEL TO DETERMINE RADIATIVE PROPERTIES OF TETRAKAIDECAHEDRA CELL STRUCTURE
ICHMT DIGITAL LIBRARY ONLINE, Vol.0, 2017, issue
Vipul M. Patel, Prabal Talukdar
A NUMERICAL STUDY ON THE EFFECTS OF THE HEAT SPREADER THICKNESS AND THE HEAT SINK SIZE ON THE THERMAL PERFORMANCE OF A COOLING DEVICE FOR A CPV MODULE
First Thermal and Fluids Engineering Summer Conference, Vol.7, 2015, issue
Tae Hoon Kim, Yong-Shik Han, Byung-ll Choi , Myung-Bae Kim, Kyu Hyung Do