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Improving the performance of a condensing heat exchanger for biomass combustion at household scale

Author

Listed:
  • Gallardo, Sebastián
  • Farías, Oscar
  • Cornejo, Pablo
  • Cuevas, Cristian
  • Valín, Maylí
  • Jimenez, Jorge

Abstract

A computational CFD model representing the behavior of a condensing heat exchanger used in domestic heating and hot water applications has been presented and validated, obtaining a flow output gas temperature error of 7%. An analysis of the heat exchanger internal aerodynamic performance revealed the need for geometry enhancements which involved increasing the number of combustion gas passages, reducing the cannon diameter, and incorporating turbulence generators.

Suggested Citation

  • Gallardo, Sebastián & Farías, Oscar & Cornejo, Pablo & Cuevas, Cristian & Valín, Maylí & Jimenez, Jorge, 2024. "Improving the performance of a condensing heat exchanger for biomass combustion at household scale," Renewable Energy, Elsevier, vol. 228(C).
    • Handle: RePEc:eee:renene:v:228:y:2024:i:c:s0960148124006967
    DOI: 10.1016/j.renene.2024.120628
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    References listed on IDEAS

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    1. König, Mario & Hartmann, Ingo & Varas-Concha, Felipe & Torres-Fuchslocher, Carlos & Hoferecht, Frank, 2021. "Effects of single and combined retrofit devices on the performance of wood stoves," Renewable Energy, Elsevier, vol. 171(C), pages 75-84.
    2. Pierre Peigné & Christian Inard & Lionel Druette, 2013. "Ventilation Heat Recovery from Wood-Burning Domestic Flues. A Theoretical Analysis Based on a Triple Concentric Tube Heat Exchanger," Energies, MDPI, vol. 6(1), pages 1-23, January.
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