Rotary desiccant wheel systems: A review
Abstract
Rotary desiccant wheel (RDW) systems work in line with the dehumidification principle. These systems use salt, such as silica gel (SG) for dehumidifying the process air (PA). Desiccant cooling is adopted as an alternative option against traditional cooling systems owing to its outstanding advantages. Regeneration is of vital importance in the overall performance assessment of RDW systems. In terms of regeneration technique, these systems can be split into two types, which are natural and electrical regeneration. Natural regeneration systems usually have solar air collectors. On the other hand, electrical regeneration systems use typical fossil fuel-powered heaters. Many design-oriented factors influence the performance of RDW systems. At the same time, operating conditions have a notable influence on system performance. The objective of this article is to furnish insights into recent research concerning RDW systems, as well as to highlight cost-effective and environmentally friendly approaches aimed at improving the performance characteristics of these systems. Coefficient of performance (COP), cost, payback period, dehumidification effectiveness, and moisture reduction rate are taken into consideration in the comparative performance assessment analyses.
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URN: https://sloi.org/urn:sl:tjoee82294
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