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Title: Investigation on the regeneration and corrosion characteristics of an anodized aluminum plate regenerator
Authors: Wen, T 
Lu, L 
Yang, HX 
Luo, YM
Issue Date: 9-May-2018
Source: Energies, 9 May 2018, v. 11, no. 5, 1209, p. 1-15
Abstract: The traditional vapor compression cooling system (VCS) has been criticized for its heavy reliance on electricity consumption and limited control ability of humidity. Compared with the VCS, the liquid desiccant cooling system (LDCS) is more efficient by handling the sensible and latent load separately. The present study investigated the regeneration and corrosion characteristics of an anodized aluminum plate regenerator for the first time. Comparative tests were conducted to present the regeneration and corrosion characteristics of the normal and anodized regenerator. The influence of internal heating on the regeneration performance was also identified. The results showed that the corrosion rate was reduced from 0.0005218 mm/year for normal aluminum to 0.000011 m/year for anodized one under the same operating conditions. However, pitting corrosion was observed at operating conditions with high solution temperature, as the anodized layer of anodized aluminum was damaged due to the high temperature. Compared with the normal aluminum regenerator, the anodized one had an average enhancement of 24% and 23.7% in terms of regeneration rate and effectiveness, respectively. It was attributed to the increment of surface energy from 26.4 mN/m for normal aluminum to 47.6 mN/m for anodized plate. Besides, it was found that, compared with adiabatic one, the internally-heated regenerator improved the regeneration rate by 6.0%similar to 38% and the regeneration effectiveness by 6.3%similar to 32% depending on the operating conditions. The advantage of present study is that it can guide the design of anodized aluminum regenerator for LDCS.
Keywords: Falling film regeneration
Internal heating
Surface energy
Anodized aluminum plate
Publisher: Molecular Diversity Preservation International (MDPI)
Journal: Energies 
EISSN: 1996-1073
DOI: 10.3390/en11051209
Rights: © 2018 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (
The following publication Wen, T., Lu, L., Yang, H., & Luo, Y. (2018). Investigation on the regeneration and corrosion characteristics of an anodized aluminum plate regenerator. Energies, 11(5), 1209, 1-15 is available at
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