Design and characterization of an additive manufactured hydraulic oil cooler

Research output: Research - peer-reviewArticle

Abstract

A hydraulic oil cooler was fabricated from an aluminum alloy by selective laser melting. The plate-fin tube bank has special features, including non-circular, internally finned tubes, and external angled fins to allow flexibility in the printing process. The study demonstrates the capability to additively manufacture commercial-scale heat exchangers with intricate features. Heat transfer and pressure drop performance are characterized in a wind tunnel over a range of oil- and air-side flow rates for inlet temperatures representing high limits for a commercial hydraulic excavator. The data and results of a computational fluid dynamic model provide insight on the impact of features that are dictated by the manufacturing process on thermal and hydraulic performance.

LanguageEnglish (US)
Pages188-200
Number of pages13
JournalInternational Journal of Heat and Mass Transfer
Volume117
DOIs
StatePublished - Jan 1 2018

Fingerprint

coolers
hydraulics
oils
Oils
Hydraulics
fins
tubes
inlet temperature
wind tunnels
heat exchangers
computational fluid dynamics
pressure drop
dynamic models
printing
aluminum alloys
flexibility
manufacturing
flow velocity
heat transfer
melting

Keywords

  • 3D printing
  • Additive manufacturing
  • Heat exchanger
  • Off-set strip fins
  • Oil cooler
  • Tube bank

Cite this

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abstract = "A hydraulic oil cooler was fabricated from an aluminum alloy by selective laser melting. The plate-fin tube bank has special features, including non-circular, internally finned tubes, and external angled fins to allow flexibility in the printing process. The study demonstrates the capability to additively manufacture commercial-scale heat exchangers with intricate features. Heat transfer and pressure drop performance are characterized in a wind tunnel over a range of oil- and air-side flow rates for inlet temperatures representing high limits for a commercial hydraulic excavator. The data and results of a computational fluid dynamic model provide insight on the impact of features that are dictated by the manufacturing process on thermal and hydraulic performance.",
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