Publication detail

Properties and numerical simulation of phase change material

FIALA, P. DREXLER, P. BĚHUNEK, I.

Original Title

Properties and numerical simulation of phase change material

Type

abstract

Language

English

Original Abstract

This text deals with the application of phase change materials (PCM) for example for thermal management of integrated circuits as a viable alternative to active forced convection cooling systems. The paper presents an analytical description of melting and freezing process, an analytical solution of CaCl2.6H2O phase change in 1D and the results of a numerical model of phase change. The numerical model joins thermal field, air flow with respects to material phase change. This numerical model was obtained by means combined of the finite element method (FEM) and finite volume method (FVM) applied as main method in ANSYS software. Another contribution brings the results obtained by numerical modeling of a reactor chamber design. The reactor chamber is intended for the preparation of oil. The chamber is designed for the operating frequency f = 2.4 GHz with regulated microwave power. The power regulation allows the optimization of heat distribution in non-homogenous material with respect to chemical and physical material changes- phase changes. The paper presents a numerical model of a coupled problem. The coupled problem includes the radio frequency model and thermal field with non-linear thermal material. It was solved using sophisticated combined numerical method- the finite element method (FEM) and the finite volume method (FVM). The used material respects its own phase change from the liquid condition to the gas phase. The apparatus serves as an experimental prototype of the commercial one.

Keywords

Phase changes, thermal, modelling, numerical model, finite element method

Authors

FIALA, P.; DREXLER, P.; BĚHUNEK, I.

Released

21. 11. 2010

Publisher

INTECH Open Access publisher, ISBN 978-953-307-582-2

Location

Rakousko

ISBN

978-953-307-317-0

Pages count

1

URL

http://www.intechweb.org

BibTex

@misc{BUT61040,
  author="Pavel {Fiala} and Petr {Drexler} and Ivo {Běhunek}",
  title="Properties and numerical simulation of phase change material",
  year="2010",
  pages="1",
  publisher="INTECH Open Access publisher, ISBN 978-953-307-582-2",
  address="Rakousko",
  isbn="978-953-307-317-0",
  url="http://www.intechweb.org",
  note="abstract"
}