Author:
Dong Suiju,Liu Yin,Meng Zhaofeng,Zhai Saina,Hu Ke,Zhang Fan,Zhou Dong
Abstract
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 °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 °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 °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.
Funder
the Major Science and Technology Projects in Henan Province
the Discipline Strength Improvement Plan of Zhongyuan University of Technology
the Young Backbone Teacher of Zhongyuan University of Technology
the Science and Technology Guidance Program of HNCEAS
the Science and Technology Plan Project of Housing Urban and Rural Construction in Henan Province
the Scientific Research Team Development Project of Zhongyuan University of Technology
the Science and Technology Plan Project of Ministry of Housing and Urban Rural Development
Subject
Energy (miscellaneous),Energy Engineering and Power Technology,Renewable Energy, Sustainability and the Environment,Electrical and Electronic Engineering,Control and Optimization,Engineering (miscellaneous),Building and Construction