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

Sebastián Gallardo, Oscar Farías, Pablo Cornejo, Cristian Cuevas, Maylí Valín and Jorge Jimenez

Renewable Energy, 2024, vol. 228, issue C

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.

Keywords: Household heating systems; Condensing heat exchanger; Dynamic fluids mechanic; Energy efficiency (search for similar items in EconPapers)
Date: 2024
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Persistent link: https://EconPapers.repec.org/RePEc:eee:renene:v:228:y:2024:i:c:s0960148124006967

DOI: 10.1016/j.renene.2024.120628

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