Coupled modeling of combustion and hydrodynamics for a supercritical CO2 boiler. (October 2018)

• Record Type: Journal Article
• Authors: Wang, Feng-jun; Su, Hong-liang; Chen, Tang; Yu, Qiang; Huang, Yin; Zhang, Yan-jun; Shen, Tao
• Is Part Of: Applied thermal engineering. Volume 143(2018)
• Page Start: 711
• Page End: 718
• Publication Date: 2018-10
• Subjects: Supercritical CO2 boiler -- Coupled simulation -- Heat exchanger -- CFD; Heat engineering -- Periodicals; Heating -- Equipment and supplies -- Periodicals; Periodicals; 621.40205
• DOI: 10.1016/j.applthermaleng.2018.07.145
• Languages: English
• ISSNs: 1359-4311

Abstract

Highlights: Hydrodynamic model of supercritical CO2 (S-CO2 ) is coupled with combustion simulation. Tube outside surface temperature is obtained. Mass flow rate of fluid in each tube is calculated. Abstract: A one-dimensional hydrodynamic model of supercritical CO2 (S-CO2 ) coupled with computational fluid dynamics (CFD) simulation of gas combustion is developed. The heat exchangers are introduced into the CFD simulation as energy/momentum absorption sources. Complex tube structures can be built with the aid of AutoCAD, and therefore the simulation could give detailed information of heat exchangers. Numerical simulation is performed for a 5MWe gas-fired S-CO2 test boiler. The calculation results are validated by the thermodynamic design data. Tube outside surface temperature, as well as S-CO2 temperature distributions are obtained.