Open AccessNumerical Simulation of Straight Rib Solar Air Collector
Author(s) -
Xiaofang Yi,
Weizhong Gu,
Xuepeng Man
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1624/2/022047
Subject(s) - rib cage , inlet , computer simulation , mechanics , air temperature , significant difference , mathematics , meteorology , geometry , environmental science , structural engineering , engineering , physics , mechanical engineering , statistics
In this passage, a straight rib solar air collector is proposed. The effects of the number of ribs, the height of the ribs, the length of the ribs and the air inlet velocity on the heat collection efficiency and the normalized temperature difference are studied using the orthogonal test method. The orthogonal test plan with 4 factors and 3 levels is selected to perform numerical simulations on different collector models. The results show that the significance of each orthogonal factor on the heat collection efficiency and the normalized temperature difference is: Inlet velocity> Height of ribs > Number of ribs> Length of ribs, and get the best parameter combination: the number of ribs is 9, the rib height is 45mm and the rib length is 2000mm. In addition, the study found that the average heat collection efficiency and normalized temperature difference of the model are 3.98% and 0.00052 (K·m 2 )/W higher than the ordinary solar air collector.