About this Abstract |
Meeting |
2022 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2022)
|
Symposium
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2022 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2022)
|
Presentation Title |
Surface-based Lattice Structures as Candidates for Heat Exchangers |
Author(s) |
Daniel Padrao, David Hancock, Frank Schoofs, James Paterson, Christopher Tuck, Ian Maskery |
On-Site Speaker (Planned) |
Daniel Padrao |
Abstract Scope |
Heat exchangers are integral for many different fields. Their performance can be enhanced through the inclusion of non-conventional designs. Additive manufacturing enables the creation of complex structures with greater surface-to-volume ratios than standard pin/fin arrays and pipes. Here, the hydraulic and thermal performance of gyroid and primitive lattice structures were examined numerically. They exhibited volumetric heat transfer coefficients an order of magnitude greater than a cooling pipe, but also exhibited much larger pressure drops. The primitive lattice was determined to be a poorer candidate for heat exchangers due to the large variation of channel diameter, which impeded fluid mixing. This was quantified by maximum volumetric heat transfer coefficients of 1.3 Wm-3K-1 and 2.1 Wm-3K-1 for the primitive and gyroid lattice structures, respectively. Finally, predictive models for pressure drop and volumetric heat transfer coefficient were determined, which can be used to design heat exchangers with pre-defined performance requirements. |
Proceedings Inclusion? |
Definite: Post-meeting proceedings |