Titlebar

Export bibliographic data
Literature by the same author
plus on the publication server
plus at Google Scholar

 

An Optimum Enthalpy Approach for Melting and Solidification with Volume Change

DOI zum Zitieren der Version auf EPub Bayreuth: https://doi.org/10.15495/EPub_UBT_00004649
URN to cite this document: urn:nbn:de:bvb:703-epub-4649-9

Title data

Faden, Moritz ; König-Haagen, Andreas ; Brüggemann, Dieter:
An Optimum Enthalpy Approach for Melting and Solidification with Volume Change.
In: Energies. Vol. 12 (2019) Issue 5 . - No. 868.
ISSN 1996-1073
DOI der Verlagsversion: https://doi.org/10.3390/en12050868

[img]
Format: PDF
Name: energies-12-00868.pdf
Version: Published Version
Available under License Creative Commons BY 4.0: Attribution
Download (1MB)

Project information

Project title:
Project's official titleProject's id
Open Access PublizierenNo information

Abstract

Classical numerical methods for solving solid–liquid phase change assume a constant density upon melting or solidification and are not efficient when applied to phase change with volume expansion or shrinkage. However, solid-liquid phase change is accompanied by a volume change and an appropriate numerical method must take this into account. Therefore, an efficient algorithm for solid-liquid phase change with a density change is presented. Its performance for a one-dimensional solidification problem and for the quasi two-dimensional melting of octadecane in a cubic cavity was tested. The new algorithm requires less than 1/9 of the iterations compared to the source based method in one dimension and less than 1/7 in two dimensions. Moreover, the new method is validated against PIV measurements from the literature. A conjugate heat transfer simulation, which includes parts of the experimental setup, shows that parasitic heat fluxes can significantly alter the shape of the phase front near the bottom wall.

Further data

Item Type: Article in a journal
DDC Subjects: 600 Technology, medicine, applied sciences > 620 Engineering
Institutions of the University: Faculties > Faculty of Engineering Science > Chair Engineering Thermodynamics and Transport Processes
Faculties > Faculty of Engineering Science > Chair Engineering Thermodynamics and Transport Processes > Chair Engineering Thermodynamics and Transport Processes - Univ.-Prof. Dr.-Ing. Dieter Brüggemann
Profile Fields > Emerging Fields > Energy Research and Energy Technology
Research Institutions > Research Units > ZET - Zentrum für Energietechnik
Faculties
Faculties > Faculty of Engineering Science
Profile Fields
Profile Fields > Emerging Fields
Research Institutions
Research Institutions > Research Units
Language: English
Originates at UBT: Yes
URN: urn:nbn:de:bvb:703-epub-4649-9
Date Deposited: 27 Mar 2020 11:15
Last Modified: 27 Mar 2020 11:15
URI: https://epub.uni-bayreuth.de/id/eprint/4649

Downloads

Downloads per month over past year