Simulation Study on the Performance of an Enhanced Vapor-Injection Heat-Pump Drying System

被引：1
|
作者：
Dong, Suiju [1 ,2 ]
Liu, Yin [1 ]
Meng, Zhaofeng [1 ]
Zhai, Saina [1 ]
Hu, Ke [1 ]
Zhang, Fan [1 ]
Zhou, Dong [1 ,2 ]
机构：
[1] Zhongyuan Univ Technol, Sch Energy & Environm, Zhengzhou 450007, Peoples R China
[2] Zhengzhou Heating Grp Co Ltd, Zhengzhou 450052, Peoples R China
来源：
ENERGIES | 2022年 / 15卷 / 24期
基金：
芬兰科学院;
关键词：
heat pump; drying; enhanced vapor injection; COP; SMER; KINETICS;
D O I：
10.3390/en15249542
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
The performance of an enhanced vapor-injection heat-pump drying system was designed and theoretically studied in cold areas. According to the simulation findings, the ideal vapor-injection charge of the system ranges from 12.3 to 13.9%, and its ideal intermediate pressure is between 1.278 and 1.498 MPa when the evaporation temperature is above 0 degrees C. The ideal vapor-injection charge of the system ranges from 13 to 20%, and its optimal intermediate pressure ranges from 1.078 to 1.278 MPa when the evaporation temperature is -15-0 degrees C. The ideal vapor-injection charge of the system ranges from 20 to 24%, and the intermediate pressure ranges from 0.898 to 1.078 MPa when the evaporation temperature is below -15 degrees C. The heat and humidity exhausted air source heat-pump drying (HHE-ASHPD) system has higher dehumidification efficiency than the closed heat-pump drying (CHPD) system under the same air temperature, humidity, and volume parameters.
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页数：14
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