Numerical simulation of heat pump drying system for paper exhaust hood
Source abstract
Abstract
Abstract In view of the present situation that the exhaust waste heat of the hot air hood in the paper drying section is too much and the environment is not friendly, a closed heat pump drying system model applied to the exhaust air hood is proposed and established. Effects of evaporation temperature and condensation temperature on supply air temperature, supply air moisture content, system performance coefficient (COP) and dehumidification energy consumption ratio (SMER) were studied. Results show that with the increase of condensation temperature, the supply air temperature is unchanged, and the moisture content of the supply air increase, while the COP and SMER of the system show a downward trend. The moisture content of supply air decrease with the increase of evaporation temperature, while the supply air temperature, COP and SMER all show an upward trend. Therefore, in order to improve the drying characteristics and improve the performance of the heat pump system, the condensation temperature can be reduced and the evaporation temperature can be increased.
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Research context
OpenAlex topics: Building Energy and Comfort Optimization · Food Drying and Modeling · Radiative Heat Transfer Studies
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
School of Mechanical and Electrical Engineering , Xi’an Polytechnic University , Xi’an , China
State Key Laboratory of Nuclear Power Safety Monitoring Technology and Equipment , China Nuclear Power Engineering Co., Ltd , Shenzhen , China
Funding
National Natural Science Foundation of China
References (15)
Show source-provided references
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