JOURNAL OF CHEMICAL ENGINEERING OF JAPAN
Print ISSN : 0021-9592
Energy
Double-Stage Dehumidification in a Two-Rotor Desiccant Cooling Process Equipped with a Multi-Divided Adsorbent Rotor
Akio KodamaMikio KumitaHisashi AsanoToshinobu Asada
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2009 Volume 42 Issue 12 Pages 930-936

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Abstract

A desiccant cooling process equipped with a multi-divided adsorption dehumidifier is proposed to achieve double stage dehumidification in one adsorbent rotor. In this process, once dehumidified and cooled air is dehumidified again at a different adsorption zone of the same desiccant rotor. It has been found experimentally that dehumidifying performance is strongly influenced by the supply position of outside air to the adsorbent rotor. Humid outside air should be supplied to the latter half of the adsorption zone and once dehumidified air should be sent to the first half of the adsorption zone to maintain a suitable adsorption capacity and rate for the whole adsorption zone. Consideration of the appropriate outside air inlet position and the optimal rotation speed yields a 30% larger amount of dehumidification than that of conventional processes under a humid summer condition.

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© 2009 The Society of Chemical Engineers, Japan
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