In order to solve the problems of low drying efficiency and high energy consumption in the process of industrial and agricultural drying and make full use of the medium-low temperature heat source generated in the process of production, a drying system with controllable temperature and humidity was designed. The drying system consists of heating system, dehumidification system, automatic measure & control system and drying shed. The technological process of drying was introduced, and the operation performance and energy consumption were analyzed. Results showed that the temperature and velocity of the air flow were evenly distributed and the energy consumption was low, the drying rate of the whole dryness process was 0.122 kg/(kg∙h), and the total energy consumption factor was 391.2 kJ/kg. This system can use solar energy, geothermal energy and industrial waste heat as drying heat source which is beneficial to reduce energy consumption.
LU Zhen-neng
,
LIU Yu-bing
,
YAO Yuan
,
QU Yong
,
WANG Hai-xiang
,
GONG Yu-lie
. Design and Tests of a Drying System with Medium Low Temperature Heat Source[J]. Advances in New and Renewable Energy, 2019
, 7(6)
: 548
-552
.
DOI: 10.3969/j.issn.2095-560X.2019.06.011
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