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Performance study of a novel solar solid dehumidification/regeneration bed for use in buildings air conditioning systems

Yang, Wansheng; Wang, Wenhui; Ding, Zezhi; Wang, Zhangyuan; Zhao, Xudong; He, Song

Authors

Wansheng Yang

Wenhui Wang

Zezhi Ding

Zhangyuan Wang

Song He



Abstract

In this paper, a novel solar solid dehumidification/regeneration bed has been proposed, and its three regeneration methods, i.e., simulated solar radiation regeneration, microwave regeneration, and combined regeneration of the microwave and simulated solar radiation, were experimentally investigated and compared, as well as the dehumidification performance. The degree of regeneration of the proposed system under the regeneration method combining both microwave irradiation and simulated solar radiation could reach 77.7%, which was 3.77 times higher than that of the system under the simulated solar regeneration method and 1.05 times higher than that of the system under the microwave regeneration. The maximum energy efficiency of the proposed system under the combined regeneration method was 21.7%, while it was only 19.4% for the system under microwave regeneration. All these proved that the combined regeneration method of the simulated solar and microwave radiation not only improved the regeneration efficiency of the system, but also enhanced the energy efficiency. For the dehumidification performance, the maximum transient moisture removal was 14.1 g/kg, the maximum dehumidification efficiency was 68.0% and the maximum speed of dehumidification was 0.294 g/(kgμs) when the inlet air temperature was at 26.09 °C and the air relative humidity was at 89.23%. By comparing the testing results with the semi-empirical results from the Page model, it was indicated that the Page model can predict the regeneration characteristics of the novel solar solid dehumidification/regeneration bed under the combined method of microwave and simulated solar regeneration. The results of this research should prove useful to researchers and engineers to exploit the potential of solar technologies in buildings worldwide.

Citation

Yang, W., Wang, W., Ding, Z., Wang, Z., Zhao, X., & He, S. (2017). Performance study of a novel solar solid dehumidification/regeneration bed for use in buildings air conditioning systems. Energies, 10(9), 1335. https://doi.org/10.3390/en10091335

Journal Article Type Article
Acceptance Date Sep 1, 2017
Online Publication Date Sep 4, 2017
Publication Date Sep 4, 2017
Deposit Date Sep 7, 2017
Publicly Available Date Sep 7, 2017
Journal Energies
Electronic ISSN 1996-1073
Publisher MDPI
Peer Reviewed Peer Reviewed
Volume 10
Issue 9
Article Number 1335
Pages 1335
DOI https://doi.org/10.3390/en10091335
Keywords Keywords: regeneration; microwave; simulated solar radiation; performance; Page model
Public URL https://hull-repository.worktribe.com/output/454597
Publisher URL http://www.mdpi.com/1996-1073/10/9/1335
Contract Date Sep 7, 2017

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Copyright Statement
© 2017 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 (http://creativecommons.org/licenses/by/4.0/).







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