Numerical Simulation of Straight Rib Solar Air Collector. Issue 2 (October 2020)

• Record Type: Journal Article
• Authors: Yi, Xiaofang; Gu, Weili; Man, Xuepeng
• Is Part Of: Journal of physics. Volume 1624:Issue 2(2020)
• Publication Date: 2020-10
• Subjects: Straight rib solar air collector -- Heat collection efficiency -- The normalized temperature difference -- The orthogonal test method -- Numerical simulation; Physics -- Congresses; 530.5
• DOI: 10.1088/1742-6596/1624/2/022047
• Languages: English
• ISSNs: 1742-6588

Abstract

Abstract: 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.