Efficiency of a heated air curtain under cross-jet temperature gradients

C. Alanis Ruiz, T. van Hooff, B. Blocken, G.J.F. van Heijst

Onderzoeksoutput: Hoofdstuk in Boek/Rapport/CongresprocedureConferentiebijdrageAcademicpeer review

Samenvatting

The infiltration of unconditioned outdoor air to controlled indoor environments can have negative impacts on the energy performance and indoor environmental quality of buildings. Air curtains can be used to reduce infiltration through entrance doors where transit is frequent. The stability and performance of air curtains strongly depends on the combination of jet and environmental forces that act on them, including forces due to cross-jet density gradients and injection of buoyancy in the jet. This study addresses the performance of a heated air-curtain system by means of validated computational fluid dynamics (CFD) simulations. Two performance indicators are considered: (1) separation efficiency (related to mass transport), and (2) thermal efficiency (related to heat transport). The results indicate that based on the performance indicators, the use of a heated air curtain is not favorable over the use of an isothermal air curtain.
Originele taal-2Engels
TitelBS 2021 - Proceedings of Building Simulation 2021
Subtitel17th Conference of IBPSA
RedacteurenDirk Saelens, Jelle Laverge, Wim Boydens, Lieve Helsen
Plaats van productieBruges, Belgium
UitgeverijInternational Building Performance Simulation Association (IBPSA)
Pagina's511-517
Aantal pagina's7
ISBN van elektronische versie9781775052029
DOI's
StatusGepubliceerd - 2022
EvenementBuilding Simulation 2021 Conference - Bruges (Belgium), Bruges, België
Duur: 1 sep. 20213 sep. 2021
https://bs2021.org/

Publicatie series

NaamBuilding Simulation Conference Proceedings
ISSN van geprinte versie2522-2708

Congres

CongresBuilding Simulation 2021 Conference
Verkorte titelBS 2021
Land/RegioBelgië
StadBruges
Periode1/09/213/09/21
Internet adres

Vingerafdruk

Duik in de onderzoeksthema's van 'Efficiency of a heated air curtain under cross-jet temperature gradients'. Samen vormen ze een unieke vingerafdruk.

Citeer dit