Comparaison expérimentale de l'impact de l'encrassement côté air sur la performance thermo-hydraulique des échangeurs de chaleur à microcanaux et à plaques ailetées.
Experimental comparison of the impact of air-side particulate fouling on the thermo-hydraulic performance of microchannel and plate-fin heat exchangers.
Auteurs : BELL I., GROLL E. A.
Résumé
In this study, the air-side pressure drop and heat transfer performance of plate-fin and microchannel coils were tested under clean and fouled conditions. The heat exchangers were tested with two different types of dust, ASHRAE Standard Dust and Arizona Road Test Dust. The ASHRAE dust was found to have a very significant impact on the pressure drop of the microchannel heat exchanger, increasing the air-side pressure drop of the microchannel heat exchanger by over 200% for a dust injection of 267 g (1612.5 g/m2). Fouling of the microchannel heat exchanger with Arizona Road Test Dust was not found to increase the air-side pressure drop of the microchannel heat exchanger but was found to decrease the heat transfer rate by more than 10%. In addition, from studies of the evolution of the air-side pressure drop during the fouling process, it is seen that microchannel coils with louvered fins with fin pitch below 2.0 mm were significantly more prone to fouling than louvered heat exchangers with larger fin pitch. Particulate fouling of the wavy-plate-fin heat exchanger resulted in significantly lower reductions in heat transfer and increase in air-side pressure drop than for the microchannel heat exchanger.
Documents disponibles
Format PDF
Disponible
Prix public
20 €
Prix membre*
15 €
* meilleur tarif applicable selon le type d'adhésion (voir le détail des avantages des adhésions individuelles et collectives)
Détails
- Titre original : Experimental comparison of the impact of air-side particulate fouling on the thermo-hydraulic performance of microchannel and plate-fin heat exchangers.
- Identifiant de la fiche : 2010-1845
- Langues : Anglais
- Date d'édition : 12/07/2010
- Source : Source : Proc. 2010 int. Refrig. Air Cond. Conf., Purdue Univ.
n. 2147; 10 p.; fig.; photogr.; tabl.; 14 ref.
Indexation
-
Air-side fouling of finned heat exchangers: Par...
- Auteurs : INAMDAR H. V., GROLL E. A., WEIBEL J. A., GARIMELLA S. V.
- Date : 07/2023
- Langues : Anglais
- Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 151
- Formats : PDF
Voir la fiche
-
A literature review on air side heat exchanger ...
- Auteurs : SARFRAZ O., BACH C. K.
- Date : 11/07/2016
- Langues : Anglais
- Source : 2016 Purdue Conferences. 16th International Refrigeration and Air-Conditioning Conference at Purdue.
- Formats : PDF
Voir la fiche
-
Air-side thermal hydraulic performance of offse...
- Auteurs : DONG J., CHEN J., CHEN Z., et al.
- Date : 02/2007
- Langues : Anglais
- Source : Applied Thermal Engineering - vol. 27 - n. 2-3
Voir la fiche
-
Studies on the fouling behavior of microchannel...
- Auteurs : PERENCEVIC S.
- Date : 25/10/2012
- Langues : Anglais
- Source : RCR 2012. 3rd IIR Workshop on Refrigerant Charge Reduction in Refrigerating Systems: Valencia, Spain, October 25-26, 2012.
- Formats : PDF
Voir la fiche
-
Experimental investigation of evaporation heat ...
- Auteurs : KHAN T. S., KHAN M. S., CHYU M. C., et al.
- Date : 09/03/2012
- Langues : Anglais
- Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 35 - n. 2/vol. 35
- Formats : PDF
Voir la fiche