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2021 | OriginalPaper | Chapter

2. Current State-of-the-Art in Desiccant Dehumidifiers

Authors : Dr. Vivekh Prabakaran, Prof. Kian Jon Chua

Published in: Advances in Desiccant Dehumidification

Publisher: Springer International Publishing

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Abstract

Desiccant coated heat exchangers (DCHEs) yield higher dehumidification and thermal efficiency over other solid desiccant dehumidifiers due to their effective removal of the exothermic heat of sorption and improved heat transfer effectiveness. Accordingly, they offer prospective energy and cost savings to several energy-related applications such as heat pumps, chillers, water harvesters, etc. A comprehensive review of the current state-of-the-art in DCHEs is imperative to understand this technology’s marked impact and its performing strategies and capabilities. This chapter first introduces the different types of isotherm and hysteresis profiles and specifies the adsorption mechanisms. Then it presents a list of conventional pure/composite desiccants employed and highlights their limitations. Next, the detailed steps involved during its binder material selection are presented, and a comparison is made between the different types of coating techniques. Different regeneration techniques are then described, and the relevance of thermal regeneration vis-à-vis microwave and ultrasonic methods is established. Lastly, the ideal characteristics of a desiccant are listed, which would pave the way for performance-enhancing synthesis of advanced desiccant materials.

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previous chapter Progressive Development of Solid Desiccant Dehumidification Technology

next chapter Latest Developments in the Desiccant-Coated Dehumidifiers

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Title: Current State-of-the-Art in Desiccant Dehumidifiers
Authors: Dr. Vivekh Prabakaran
Prof. Kian Jon Chua
Publisher: Springer International Publishing
Book: Advances in Desiccant Dehumidification
Print ISBN: 978-3-030-80842-6

Electronic ISBN: 978-3-030-80843-3

Copyright Year: 2021
DOI: https://doi.org/10.1007/978-3-030-80843-3_2

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