IIR document
Innovative method to reduce frost formation in liquid-to-air membrane energy exchangers (LAMEE) based on 3D CFD simulation.
Author(s) : SHOTLOU M. A., POURMAHMOUD N.
Type of article: IJR article
Summary
Frost formation is an important and challenging problem in the proper operation of ventilation systems. In this study, a novel model is developed to predict the amount of frost formation in a Liquid-to-Air Membrane Energy Exchanger (LAMEE) based on the 3-Dimensional Computational Fluid Dynamics (CFD) technique. This model can be a robust way to find and analyze different proposed methods to combat frost. The results show that the presence of the membrane reduces the mass of frost compared to the impermeable surface by approximately 60% due to the mass transfer phenomenon. Moreover, the variations of air temperature along the LAMEE are sharper than the changes in humidity ratio, which is an important reason for more frost forming. Condensed Humidity Ratio (CHR) is presented as a valid criterion for analyzing the distribution of frost formation in heat and energy exchangers. Furthermore, an innovative method is proposed based on 3-fluid LAMEE to reduce frost formation. In the proposed method, the solution temperature is controlled with another fluid that flows in tubes located in the solution channel. Therefore, this model control heat transfer between air and solution flows in different parts and moderate air temperature variations for vapor reach the saturation line in a low humidity ratio. The developed CFD model predicts that the frost formation in the proposed LAMEE is around 25–28% saturation less than the typical LAMEE at an equal sensible cooling capacity.
Available documents
Format PDF
Pages: 22-31
Available
Public price
20 €
Member price*
Free
* Best rate depending on membership category (see the detailed benefits of individual and corporate memberships).
Details
- Original title: Innovative method to reduce frost formation in liquid-to-air membrane energy exchangers (LAMEE) based on 3D CFD simulation.
- Record ID : 30030946
- Languages: English
- Subject: Technology
- Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 147
- Publication date: 2023/03
- DOI: http://dx.doi.org/10.1016/j.ijrefrig.2022.08.022
Links
See other articles in this issue (12)
See the source
Indexing
-
A Dynamic Model for Microchannel Heat Exchanger...
- Author(s) : LING J., WANG L., DHUMANE R., AUTE V.
- Date : 2021/08/31
- Languages : English
- Source: 13th IEA Heat Pump Conference 2021: Heat Pumps – Mission for the Green World. Conference proceedings [full papers]
- Formats : PDF
View record
-
An analytical model for predicting frosting lim...
- Author(s) : NAVID P., NIROOMAND S., SIMONSON C. J.
- Date : 2019/03
- Languages : English
- Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 99
- Formats : PDF
View record
-
Optimizing combined membrane dehumidification w...
- Author(s) : CHANDRASEKARAN A. S.
- Date : 2020
- Languages : English
- Formats : PDF
View record
-
Improving robustness of transient heat exchange...
- Author(s) : MA J., KIM D., BRAUN J. E.
- Date : 2022
- Languages : English
- Source: 2022 Purdue Conferences. 19th International Refrigeration and Air-Conditioning Conference at Purdue.
- Formats : PDF
View record
-
Quick estimation of frost growth on cold fins t...
- Author(s) : KIM S., LEE S. Y.
- Date : 2014/11
- Languages : English
- Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 47
- Formats : PDF
View record