Experimental Study on the Effect of Loading Density on the Performance of a Closed Drying System Using Quasi-Two-Stage Heat Pump for <italic style="font-style: italic">Lentinus edodes</italic>

Zeng Tao; Wu Weidong; Li Min; Wang Jing; Hou Yaxiang

doi:10.12465/j.issn.0253-4339.2025.01.094

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Experimental Study on the Effect of Loading Density on the Performance of a Closed Drying System Using Quasi-Two-Stage Heat Pump for Lentinus edodes

更新时间：2025-01-23

- Experimental Study on the Effect of Loading Density on the Performance of a Closed Drying System Using Quasi-Two-Stage Heat Pump for Lentinus edodes
- Journal of Refrigeration Vol. 46, Issue 1, Pages: 94-100(2025)
- 作者机构：
  
  1.上海理工大学能源与动力工程学院　上海　 200093
  2.上海海关机电产品检测技术中心　上海　 200135
- 作者简介：
  
  Wu Weidong, male, professor, School of Energy and Power Engineering, University of Shanghai for Science and Technology, 86-21-55271875, E-mail: usstwwd@163.com. Research fields: refrigeration and cryogenic engineering.
- 基金信息：
  
  National Natural Science Foundation of China(52176016)
- DOI：10.12465/j.issn.0253-4339.2025.01.094
  CLC： S226.6;TK173
- Received：30 July 2023，
  
  Revised：18 September 2023，
  
  Accepted：2023-11-02，
  
  Published：16 February 2025
- 稿件说明：
移动端阅览
Zeng Tao, Wu Weidong, Li Min, et al. Experimental Study on the Effect of Loading Density on the Performance of a Closed Drying System Using Quasi-Two-Stage Heat Pump for Lentinus edodes[J]. Journal of refrigeration, 2025, 46(1): 94-100.
DOI：

Zeng Tao, Wu Weidong, Li Min, et al. Experimental Study on the Effect of Loading Density on the Performance of a Closed Drying System Using Quasi-Two-Stage Heat Pump for Lentinus edodes[J]. Journal of refrigeration, 2025, 46(1): 94-100. DOI： 10.12465/j.issn.0253-4339.2025.01.094.

摘要

香菇干燥是防止香菇出现腐烂、褐变等问题的一种有效方法，而在干燥过程中，装填密度对系统性能及干燥品质均具有重要影响。基于新设计的准双级补气增焓热泵闭式干燥系统，实验研究了不同香菇装填密度对水分比、干燥速率、系统能效比（COP

sys

）、单位能耗除湿量（SMER）、单位能耗干燥量及复水比的影响规律。结果表明：在干燥室送风温度为55 ℃和循环风量为580 m

/h的条件下，随着装填密度从1.5 kg/m

增至3.0 kg/m

，香菇干燥速率逐渐下降，平均COP

sys

、平均SMER、单位能耗干燥量及复水比均先增大后减小；当装填密度为2.4 kg/m

时，平均SMER、单位能耗干燥量和复水比均取得最大值，分别为0.320 kg/（kW·h）、0.391 kg/（kW·h）和3.6；当装填密度为2.7 kg/m

时，平均COP

sys

取得最大值4.22。

Abstract

Drying of

Lentinus edodes

is an effective method to prevent problems such as rotting and browning. During the drying process

the loading density has a significant impact on system performance and drying quality. Based on a newly designed quasi-two-stage enhanced vapor injection heat pump closed drying system

the effects of different loading densities of

Lentinus edodes

on moisture ratio

drying rate

coefficient of performance of the system (COP

sys

)

specific moisture extraction rate (SMER)

drying capacity per unit energy consumption

and rehydration ratio were experimentall

y investigated. The results showed that when the drying air supply temperature was 55 ℃ and the circulating air volume was 580 m

the drying rate of

Lentinus edodes

decreased gradually with the loading density in the drying chamber

from 1.5 kg/m

to 3.0 kg/m

. Meanwhile

the average COP

sys

average SMER

drying capacity per unit energy consumption

and rehydration ratio increased first and then decreased. When the loading density was 2.4 kg/m

the average SMER

drying capacity per unit energy consumption

and rehydration ratio reached the maximum values of 0.320 kg/(kW·h)

0.391 kg/(kW·h)

and 3.6

respectively. When the loading density was 2.4 kg/m

the average COP

sys

reached its maximum of 4.22.

关键词

Keywords

references

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⁰

Experimental Study on the Effect of Loading Density on the Performance of a Closed Drying System Using Quasi-Two-Stage Heat Pump for Lentinus edodes

DOI：10.12465/j.issn.0253-4339.2025.01.094

摘要

Abstract

关键词

Keywords

references