The performances of a zeolite-rich tuff based desiccant wheel is numerically investigated. The tuff considered is Campanian Ignimbrite from Naples area in Southern Italy, rich in phillipsite and chabazite. The study was carried out varying a number of parameters, namely void fraction of the wheel, process and regeneration air velocity and wheel rotational speed. Results show that highest moisture removal is achieved for void fraction values between 0.3–0.6, process air flow velocity between 1–2 m· s−1, regeneration air flow velocity between 2–3 m·s−1 and revolution speed values between 12.5–20 rph. Moreover, this work highlights that performances of a zeolite-rich tuff based desiccant wheel are higher than those of a silica gel based desiccant wheel only in very dry ambient air conditions (inlet relative humidity of process air lower than 25%). © 2017 American Scientific Publishers All rights reserved.

Modelling of a zeolite-rich tuff desiccant wheel

Bareschino P
;
PEPE F
;
Diglio G
2017

Abstract

The performances of a zeolite-rich tuff based desiccant wheel is numerically investigated. The tuff considered is Campanian Ignimbrite from Naples area in Southern Italy, rich in phillipsite and chabazite. The study was carried out varying a number of parameters, namely void fraction of the wheel, process and regeneration air velocity and wheel rotational speed. Results show that highest moisture removal is achieved for void fraction values between 0.3–0.6, process air flow velocity between 1–2 m· s−1, regeneration air flow velocity between 2–3 m·s−1 and revolution speed values between 12.5–20 rph. Moreover, this work highlights that performances of a zeolite-rich tuff based desiccant wheel are higher than those of a silica gel based desiccant wheel only in very dry ambient air conditions (inlet relative humidity of process air lower than 25%). © 2017 American Scientific Publishers All rights reserved.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/20.500.12070/4584
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