Design of drying machine with co-heating and dehumidification and testing of its drying performance on shiitake mushrooms

Authors

BAO Huangjie, School of Machinery and Energy, Zhejiang University of Science and Technology, Hangzhou, Zhejiang 310023, China
GUO Wenwen, School of Machinery and Energy, Zhejiang University of Science and Technology, Hangzhou, Zhejiang 310023, ChinaFollow
LI Guoneng, School of Machinery and Energy, Zhejiang University of Science and Technology, Hangzhou, Zhejiang 310023, China
SHI Yuxin, School of Machinery and Energy, Zhejiang University of Science and Technology, Hangzhou, Zhejiang 310023, China
ZHANG Mengjie, School of Machinery and Energy, Zhejiang University of Science and Technology, Hangzhou, Zhejiang 310023, China

Corresponding Author(s)

郭文文（1988—），女，浙江科技学院副教授，博士。E-mail:115030@zust.edu.cn

Abstract

Objective: In order to improve the mushroom drying efficiency and reduce the power consumption, a new type of co-heating and dehumidification drying machine was designed and built. Methods: The drying machine was a closed system, which took the semiconductor refrigeration piece as the main component, with its hot end as heat source for air pre-heating and its cold end as the cold source for water vapor condensation. On the device, the mushroom drying rate at different drying temperatures （55 and 65 ℃） and sample mass （200 and 400 g） were tested. Results: Nine thin layer mathematical drying models were used to simulate the drying rate, which revealed that the Midilli model had a better predict effect than the others. In addition, it was found that the higher drying temperature resulted in a greater color change and a higher shrinkage rate. The comprehensive energy efficiency ratio of the drying machine was 1.96, and the power consumption of drying mushroom was 81.21 MJ/kg. Conclusion: In the experiment, the indexes such as moisture content and color change of dried mushroom met the national standards, and the energy-saving effect was remarkable compared with the traditional electric heating drying machine.

Publication Date

1-30-2024

First Page

70

Last Page

76

DOI

10.13652/j.spjx.1003.5788.2023.80321

Recommended Citation

Huangjie, BAO; Wenwen, GUO; Guoneng, LI; Yuxin, SHI; and Mengjie, ZHANG (2024) "Design of drying machine with co-heating and dehumidification and testing of its drying performance on shiitake mushrooms," Food and Machinery: Vol. 39: Iss. 12, Article 12.
DOI: 10.13652/j.spjx.1003.5788.2023.80321
Available at: https://www.ifoodmm.cn/journal/vol39/iss12/12

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