The role of processing parameters on energy efficiency during microwave convective drying of porous materials

Emma Holtz; Lilia Ahrné; Therese Häll Karlsson; Michael Rittenauer; Anders Rasmuson

doi:10.1080/07373930802603334

The role of processing parameters on energy efficiency during microwave convective drying of porous materials

Emma Holtz^*, Lilia Ahrné, Therese Häll Karlsson, Michael Rittenauer, Anders Rasmuson

^*Corresponding author af dette arbejde

20 Citationer (Scopus)

Abstract

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.

Originalsprog	Engelsk
Tidsskrift	Drying Technology
Vol/bind	27
Udgave nummer	2
Sider (fra-til)	173-185
Antal sider	13
ISSN	0737-3937
DOI	https://doi.org/10.1080/07373930802603334
Status	Udgivet - 2009
Udgivet eksternt	Ja

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10.1080/07373930802603334

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title = "The role of processing parameters on energy efficiency during microwave convective drying of porous materials",

abstract = "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.",

keywords = "Drying kinetics, Drying rate, Microwave drying, Specific energy consumption, Temperature development",

author = "Emma Holtz and Lilia Ahrn{\'e} and Karlsson, {Therese H{\"a}ll} and Michael Rittenauer and Anders Rasmuson",

year = "2009",

doi = "10.1080/07373930802603334",

language = "English",

volume = "27",

pages = "173--185",

journal = "Drying Technology",

issn = "0737-3937",

publisher = "Taylor & Francis",

number = "2",

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TY - JOUR

T1 - The role of processing parameters on energy efficiency during microwave convective drying of porous materials

AU - Holtz, Emma

AU - Ahrné, Lilia

AU - Karlsson, Therese Häll

AU - Rittenauer, Michael

AU - Rasmuson, Anders

PY - 2009

Y1 - 2009

N2 - 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.

AB - 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.

KW - Drying kinetics

KW - Drying rate

KW - Microwave drying

KW - Specific energy consumption

KW - Temperature development

U2 - 10.1080/07373930802603334

DO - 10.1080/07373930802603334

M3 - Journal article

AN - SCOPUS:60349111956

SN - 0737-3937

VL - 27

SP - 173

EP - 185

JO - Drying Technology

JF - Drying Technology

IS - 2

ER -

The role of processing parameters on energy efficiency during microwave convective drying of porous materials

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