Design and modeling of 3D printed air-cooled heat exchangers.

Number: pap. 2454

Author(s) : FELBER R., NELLIS G., RUDOLPH N.

Summary

Manufacturing air-cooled heat exchangers with 3D printing allows a greater freedom of design compared to conventional techniques. One prototype has been designed and tested with air channels printed that include staggered arrays of pin fins. The heat exchanger design is modeled and analyzed using the Engineering Equation Solver (EES) software (Klein, 2015). The model is used to size the heat exchanger in order to satisfy two desired performance characteristics: low air side pressure drop and high heat exchanger effectiveness. The model implements the e-NTU method in order to predict the heat exchanger performance and utilizes internal and external flow correlations to estimate the convective heat transfer coefficients of the channels. The model is incorporated with an optimization in order to vary some of the air-side channel geometric parameters to obtain the lowest possible heat exchanger volume. A prototype of the resulting design has been printed with ABS plastic and experimentally tested. Its performance has been compared to that expected from the model.

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Pages: 8 p.

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Details

  • Original title: Design and modeling of 3D printed air-cooled heat exchangers.
  • Record ID : 30018752
  • Languages: English
  • Source: 2016 Purdue Conferences. 16th International Refrigeration and Air-Conditioning Conference at Purdue.
  • Publication date: 2016/07/11

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