Performance of a recirculating dryer equipped with a desiccant wheel

This article reports the incorporation of a rotary desiccant wheel unit into an air recirculated convective dryer and testing it by drying corn kernels. Experiments were conducted with and without the desiccant wheel at air temperatures of 50, 60, and 70°C and flow rates of 1, 1.4, and 1.8 kg/min. T...

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Bibliographic Details
Published in:Drying technology 2016-06, Vol.34 (8), p.863-870
Main Authors: Abasi, Sadjad, Minaei, Saeid, Khoshtaghaza, Mohammad Hadi
Format: Article
Language:English
Subjects:
Air drying
Air flow
Corn
Desiccant wheel
Desiccants
Driers
Drying
drying performance
Energy consumption
Energy efficiency
Washers & dryers
Wheels
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Summary:This article reports the incorporation of a rotary desiccant wheel unit into an air recirculated convective dryer and testing it by drying corn kernels. Experiments were conducted with and without the desiccant wheel at air temperatures of 50, 60, and 70°C and flow rates of 1, 1.4, and 1.8 kg/min. The effect of drying temperature, air flow rate, and desiccant wheel on drying time, drying rate, energy consumption, and specific moisture extraction rate were investigated. Statistical analysis of data showed that air drying temperature and air flow rate had significant effects on drying time and drying rate and the effect of desiccant wheel on drying time was significant. Results indicated that a desiccant wheel is an economical and useful system to utilize in dryers because it decreases drying time while increasing the drying rate and has a positive influence on energy consumption.
ISSN:0737-3937
1532-2300
DOI:10.1080/07373937.2015.1021421