Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
6690189 | Applied Energy | 2014 | 9 Pages |
Abstract
To address the growing need for economically viable sludge processing technologies and associated resource recovery, a novel convective high-velocity pilot cyclone was set-up at the Swedish University of Agricultural Sciences in UmeÃ¥, Sweden. In essence this process entails feeding (⩽900 kg hâ1) a material to a heated high-velocity air flow (approx. 13 Ã 103 m3 hâ1) allowing moisture removal at low temperatures. This equipment is expected to improve drying of challenging industrial sludge materials when used as a pretreatment method prior to further processing. Modeling results based on an experimental campaign on recycled paper mill sludge indicated that efficient drying with a specific energy consumption of ⩽1-1.2 kWh kgâ1 H2O can be achieved with inlet air temperature levels ⩾40 °C coupled with respective feeding capacity of ⩽750 kg hâ1.
Related Topics
Physical Sciences and Engineering
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Energy Engineering and Power Technology
Authors
Mikko Mäkelä, Paul Geladi, Sylvia H. Larsson, Michael Finell,