Application of Ceramic Lattice Structures to Design Compact, High Temperature Heat Exchangers: Material and Architecture Selection

Pelanconi, Marco and Ortona, Alberto and Zavattoni, Simone and Cornolti, Luca and Barbato, Maurizio and Arrivabeni, Edoardo and Puragliesi, Riccardo and Ferrari, Luca and Gianella, Sandro (2021) Application of Ceramic Lattice Structures to Design Compact, High Temperature Heat Exchangers: Material and Architecture Selection. Materials. ISSN 1996-1944

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Abstract

In this work, we report the design of ceramic lattices produced via additive manufacturing (AM) used to improve the overall performances of compact, high temperature heat exchangers (HXs). The lattice architecture was designed using a Kelvin cell, which provided the best compromise among effective thermal conductivity, specific surface area, dispersion coefficient and pressure loss, compared to other cell geometries. A material selection was performed considering the specific composition of the fluids and the operating temperatures of the HX, and Silicon Carbide (SiC) was identified as promising materials for the application. The 3D printing of a polymeric template combined with the replica method was chosen as the best manufacturing approach to produce SiC lattices. The heat transfer behaviour of various lattice configurations, based on the Kelvin cell, was determined through computational fluid dynamics (CFD). The results are used to discuss the application of such structures to compact high temperature HXs.

Item Type:	Scientific journal article, Newspaper article or Magazine article
Subjects:	Engineering Engineering > Mechanical engineering
Department/unit:	Dipartimento tecnologie innovative > Istituto di ingegneria meccanica e tecnologia dei materiali
Depositing User:	Marco Pelanconi
Date Deposited:	15 Jun 2021 06:45
Last Modified:	15 Jun 2021 06:45
URI:	http://repository.supsi.ch/id/eprint/12586

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