Parametric Study of Panel PCM–Air Heat Exchanger Designs

Kamidollayev, Tlegen; Trelles, Juan Pablo; Thakkar, Jay; Kosny, Jan

doi:10.3390/en15155552

Parametric Study of Panel PCM–Air Heat Exchanger Designs

Journal Article · Sat Jul 30 00:00:00 EDT 2022 · Energies

DOI:https://doi.org/10.3390/en15155552· OSTI ID:1879153

Kamidollayev, Tlegen; ; Thakkar, Jay; Kosny, Jan

Heat exchangers, devices for the transfer of heat between two or more working fluids, are extensively used in cooling applications and heating applications. Heat exchangers in buildings are typically components of space-conditioning systems, as well as of water-heating applications. Heat exchangers are also sometimes used in applications that require storage and release of energy at specific times. Phase change materials (PCMs) enhance these heat-exchange processes, given their ability to melt and solidify at a fixed range of temperatures, absorbing or releasing significant amounts of latent heat. Five different configurations of PCM–air heat exchangers for thermal control in buildings are analyzed in this work. The heat exchangers were fitted with PCM encapsulated in plastic and composite pouches of various shapes, and packaged in stackable panel layers. Three-dimensional computational fluid dynamics (CFD) modeling of coupled incompressible fluid and conjugate heat transfer were performed on the designs. The phase change process was numerically modelled using the apparent heat capacity method. Steady-state CFD simulations provided quantification of pressure drop as a function of air flow velocity. Transient simulation results describe the thermal evolution of PCM in the pouches, helping to determine the best performing configuration with respect to total thermal charging time.

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Sponsoring Organization:: USDOE

Grant/Contract Number:: EE0009156

OSTI ID:: 1879153

Alternate ID(s):: OSTI ID: 1981145
OSTI ID: 2588571

Journal Information:: Energies, Journal Name: Energies Journal Issue: 15 Vol. 15; ISSN ENERGA; ISSN 1996-1073

Publisher:: MDPI AGCopyright Statement

Country of Publication:: Switzerland

Language:: English

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