Open AccessOptimization Analysis of System and Air Distribution for Solar and Heat Pump Multi-energy Complementary Zanthoxylum Drying
Author(s) -
Hanling Xue,
Xuening Wan,
Yehao Wu,
Yuting Yan
Publication year - 2021
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/647/1/012172
Subject(s) - evaporator , airflow , heat pump , waste heat , environmental science , hybrid heat , moisture , waste management , process engineering , nuclear engineering , mechanical engineering , materials science , engineering , heat exchanger , composite material
Crops have high moisture content and are easily deteriorated, requiring dry storage. However, the drying energy consumption is relatively large and the drying quality of materials is often affected by the uneven distribution of indoor airflow. Author takes Zanthoxylumas for an example and designs two solar and heat pump drying systems in which the heat pump evaporator and the heat pipe are used to recover the waste heat respectively. The energy efficiency is compared and analyzed, the result shows that when the heat evaporator is used to recover the waste heat, the energy efficiency is higher and COP of the heat pump can reach 4.06. Based on the optimized system, the FLUENT software is used to simulate the airflow organization of the two types that supplying below and returning upward, and the side-supplying and side-returning. The results show that the airflow in the drying chamber has better uniformity when using the side-supplying and side-returning, which satisfies the requirements of Zanthoxylum drying.