The role of processing parameters on energy efficiency during microwave convective drying of porous materials.
Artikel i vetenskaplig tidskrift, 2009

A small-scale microwave convective dryer was built to study the effects of microwave power level, air temperature, and air velocity on drying kinetics, temperature development, and specific energy consumption (MJ/kg evaporated water) using statistical designs. Increased microwave power had a large significant effect on moisture loss and temperature development and it reduced specific energy consumption. Increased air temperature and air velocity increased specific energy consumption, as their effect on drying kinetics was smaller in the system used. Low air temperature slowed the drying process, without affecting the relationship between average sample temperature and average moisture content during drying.

Författare

Emma Holtz

Swedish Institute for Food and Biotechnology

Lilia Ahrné

Swedish Institute for Food and Biotechnology

T. H. Karlsson

Swedish Institute for Food and Biotechnology

M. Rittenauer

Swedish Institute for Food and Biotechnology

Anders Rasmuson

Chalmers, Kemi- och bioteknik, Kemisk apparatteknik

Drying Technology

0737-3937 (ISSN) 1532-2300 (eISSN)

Vol. 27 173-185

Ämneskategorier

Kemiteknik

DOI

10.1080/07373930802603334