E3S Web Conf.
Volume 111, 2019CLIMA 2019 Congress
|Number of page(s)||6|
|Section||Sustainable Urbanization and Energy System Integration|
|Published online||13 August 2019|
Preliminary experimental and numerical analysis of a silica gel packed bed humidification system
1 Graduate Engineer
2 Politecnico di Milano, Dipartimento di Energia, Via Lambruschini 4, 20156, Milan, Italy
* Corresponding author: email@example.com
In this research, an innovative air humidification system based on two packed beds made of silica gel spherical particles is developed. Each bed is alternatively crossed by two airflows (regeneration and process). The first air stream, at outdoor conditions, after being heated and humidified through the sorption material, is supplied to the building. The second one, also at outdoor conditions, provides water vapour to the desiccant packed bed. The system design and optimization is carried out through a numerical and experimental approach. The developed phenomenological model is based on the Pseudo Gas-side Controlled (PGC) method, considering only the gas side resistance and, therefore, assuming uniform water content and temperature distribution within the desiccant particles. A test rig to evaluate performance of the packed bed humidification system has been realized and experimental results have been used to validate the model. Obtained performance highlights that the proposed system can provide adequate humidification and that it can be a valid alternative to conventional adiabatic and steam humidifiers.
© The Authors, published by EDP Sciences, 2019
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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