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Modellierung und Simulation einer thermochemischen Kältemaschine auf Metallhydridbasis
Citation Link: https://doi.org/10.15480/882.1022
Other Titles
Modelling and simulation of a thermally driven metal hydride cooling system
Publikationstyp
Doctoral Thesis
Date Issued
2011
Sprache
German
Author(s)
Advisor
Title Granting Institution
Technische Universität Hamburg
Place of Title Granting Institution
Hamburg
Examination Date
2011-09-30
Institut
TORE-DOI
A study on the heat and mass transfer in coupled metal hydride reaction beds is of particular interest in the design and optimization of thermochemical refrigerator on the basis of metal hydrides. The present work examines a comprehensive two-dimensional dynamic heat and mass transfer in coupled metal hydride reaction beds. It is focused on the solution of the governing equations for the transient heat and mass transfer with consideration of the simultaneous absorption and desorption, kinetic rate equation and boundary conditions for coupling. The non linear coupled differential equations of the governing equations are solved numerically by the finite element method with COMSOL Multiphysics®. In order to verify and validate the simulation model coupled reaction beds filled with Ti27,2Zr5,8Mn47V17Fe3 and Ti30,5Zr2,5Mn47,3V15Fe2,7 alloys are experimentally investigated. The results of the numerical simulations show good agreement with the experimental results.
Subjects
Wasserstoff
Wasserstofftechnik
thermochemische Kältemaschine
Metallhydridreaktor
Wärme-Stofftransport
hydrogen
hydrogen technology
heat and mass transfer
thermochemical refrigerator
absorption
desorption
finite element method
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