Numerical investigation on a Heat Exchanger in Aluminum Foam

Buonomo, Bernardo; Pasqua, Anna di; Ercole, Davide; Manca, Oronzio

doi:10.1016/j.egypro.2018.08.132

Cited by 12 publications

(4 citation statements)

References 10 publications

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“…Enhanced research activities can be divided into two major groups: the production of foams that can be more effectively influenced and reproduced, and the application areas of recently produced metal foams [3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18]. Application areas are affected by the type of the metal foams.…”

Section: Figure 1 Number Of Articles About Aluminium Foams According To Year Of Publicationmentioning

confidence: 99%

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Modern Applications of Aluminium Foams

Garai

2020

IJEMS

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The implementation of aluminium alloy foam has more and more attention. Application of closed cell aluminium foam has made an impact in automobile and aerospace applications where crash energy absorption, vibration and weight reduction are obligatory [1,2,3]. The aluminium alloy foam is an advanced lightweight material providing high strength and stiffness at relatively low density. The technological use of aluminium alloy foam is difficult with the currently available technologies. In the case of open cell aluminium foams, the most common research areas for application are heat exchanger components, filters and sound damping elements [3]. The manuscript focuses on the manufacturing techniques of the aluminium alloy foams according to the application areas. First step is the investigation of the requirements for the application: what are the loads and the circumstances and why can we use aluminium foams. Second step is the knowledge of the producing methods of the foam or the component. And the last step is the investigation of the possible testing methods.

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Section: Figure 1 Number Of Articles About Aluminium Foams According To Year Of Publicationmentioning

confidence: 99%

“…The four main target of the open cell aluminium foam applications are sound damping elements, heat exchanger elements, filters and design elements. Sound damping has very high potential and these elements are already used by transport sectors [8][9][10][11][12][13].…”

Section: Applicationsmentioning

confidence: 99%

Modern Applications of Aluminium Foams

Garai

2020

IJEMS

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“…Because of the high surface-volume ratio, the open-cell cellular materials offer excellent performance in heat exchange, due to their unusual structure that enhances the flow mixing ability and the production of turbulence in the fluid flow when passing through the foam structure. In particular, Buonomo et al [8,9] evaluated numerically the improvement of the energy performance ratio (EPR) for different Reynolds numbers for an aluminum foam included in a heat exchanger. Also, Gankapatnam et al [10] and De Carvalho et al [11] investigated numerically respectively the influence of the pore scale on pressure drops and thermal behavior.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of the effects of the metal foams geometrical features on thermal and fluid-dynamical behavior in forced convection

Almonti

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et al. 2020

Int J Adv Manuf Technol

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Metal foams are a material, featuring interesting characteristics for the aeronautical and automotive fields because of their low specific weight, high thermal properties, and mechanical performances. In particular, this paper deals with thermal and fluid dynamic study of 24 open-cell aluminum EN43500 (AlSi10MnMg) metal foams produced by indirect additive manufacturing (I-AM), combining 3D printing and metal casting to obtain a controllable morphology. A study of foam behavior function of the morphological features (pores per inch (PPI), branch thickness (r), and edges morphology (smooth-regular)) was performed. The samples produced were heated by radiation and tested in an open wind circuit gallery to measure the fluid dynamic properties such as pressure drop (Δp), inertial coefficient (f), and permeability (k), in an air forced convection flow. The thermal characterization was performed evaluating both the theoretical (kth) and effective (keff) thermal conductivity of the foams. Also, the global heat transfer coefficient (HTCglobal) was evaluated with different airflow rates. Analysis of variance (ANoVA) was performed to figure out which geometrical parameters are significant during both thermal and fluid dynamic processes. The results obtained show how the controllable foam morphology can affect the involved parameters, leading to an ad hoc design for industrial applications that require high thermo-fluid-dynamical performances.

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“…One of the most efficient designs of such heat exchangers uses for filling a highly porous material with a variable relative thickness of the porous material. The body has a cylindrical, round, or oval cross-section [22,23].…”

Section: Introductionmentioning

confidence: 99%

Analysis of the Efficiency of Using Heat Exchangers with Porous Inserts in Heat and Gas Supply Systems

et al. 2020

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The creation of efficient and compact heat exchangers is one of the priority tasks arising during the design of heat and gas supply to industrial and residential buildings. As a rule, finned surfaces and turbulization of heat carrier flows are used to increase the efficiency of heat exchange in heat exchangers. The present paper proposes to use novel materials, namely porous material, in the design of highly efficient heat exchangers. The investigation was carried out experimentally and theoretically. To study the possibility of creating such heat exchangers, a multi-purpose test bench is created. The aim of the study was to assess the intensity of heat transfer in heat exchangers using porous metal. Laboratory tests are carried out as part of the experimental study. In the theoretical study, the classical equation for the change in the heat flux density when the coolant passes through the porous insert was used. As a result, a mathematical model was obtained in the form of a second-order differential equation. Boundary conditions were set and a particular solution was obtained. The results of theoretical calculations were compared with experimental data. The performed study experimentally confirmed the efficiency of using porous metal inserts in the design of shell-and-tube heat exchangers. The compiled mathematical model allows one to perform engineering calculations of the considered heat exchangers with porous inserts.

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Numerical investigation on a Heat Exchanger in Aluminum Foam

Cited by 12 publications

References 10 publications

Modern Applications of Aluminium Foams

Modern Applications of Aluminium Foams

Evaluation of the effects of the metal foams geometrical features on thermal and fluid-dynamical behavior in forced convection

Analysis of the Efficiency of Using Heat Exchangers with Porous Inserts in Heat and Gas Supply Systems

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