Dynamic model of counter flow air to air heat exchanger for comfort ventilation with condensation and frost formation

Toke Ramme Nielsen, Jørgen Rose, Jesper Kragh

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32 Citations (Scopus)


In cold climates heat recovery in the ventilation system is essential to reduce heating energy demand. Condensation and freezing occur often in efficient heat exchangers used in cold climates. To develop efficient heat exchangers and defrosting strategies for cold climates, heat and mass transfer must be calculated under conditions with condensation and freezing. This article presents a dynamic model of a counter flow air to air heat exchanger taking into account condensation and freezing and melting of ice. The model is implemented in Simulink and results are compared to measurements on a prototype heat exchanger for cold climates.
Translated title of the contributionDynamisk model af en modstrømsvarmeveksler til komfortventilation med kondens og isdannelse
Original languageEnglish
JournalApplied Thermal Engineering
Issue number2-3
Pages (from-to)462-468
Number of pages6
Publication statusPublished - 2009

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