Numerical Study on the Influence of Supercritical Heat Transfer Deterioration on the Combustion Process. Issue 1 (March 2021)

• Record Type: Journal Article
• Authors: Zhao, Z X; Yang, X H; Li, Y Q; Lao, X S; Lin, Y S; Liu, Y; Gou, J L; Liao, M R; Wang, W
• Is Part Of: IOP conference series. Volume 701:Issue 1(2021)
• Publication Date: 2021-03
• Subjects: Earth sciences -- Periodicals; Environmental sciences -- Congresses; Environmental sciences -- Periodicals; 550.5
• DOI: 10.1088/1755-1315/701/1/012051
• Languages: English
• ISSNs: 1755-1307

Abstract

Abstract: The conjugate heat transfer from in-furnace combustion to in–tube supercritical fluid has been numerically investigated in this study. The mathematical model of the conjugate heat transfer process has been constructed. The effects of the abnormal heat transfer phenomena of supercritical fluid in tube and combustion status change in the furnace on the conjugate heat transfer process were analyzed. The results demonstrate that the Renormalization-group (RNG) model has better prediction ability. The Abe-Kondoh-Nagano (AKN) model will have an over-prediction problem for the abnormal heat transfer. The RNG model is also more accurate in simulating the combustion process in the furnace.