TY - GEN
T1 - Numerical Analysis on Heat Transfer and Oxidation Characteristics of High-Temperature Steam Pipes in Supercritical Units
AU - Sun, Pan Pan
AU - Wang, Shu Zhong
AU - Li, Yan Hui
AU - Li, Xue Dong
PY - 2014
Y1 - 2014
N2 - In this paper, for Super304H steel, the growth law of oxide films and the heat transfer characteristics between the pipe and the working fluid were investigated by using numerical software ANSYS, which simulated comprehensively the effects of pipe size, flow rates of steam, flue gas temperature, and steam temperature on the formation and thickness of the oxide film. A bigger pipe wall thickness, a smaller steam flow rate or a higher flue gas temperature will lead the faster growth of the oxide film thickness, the heat flux density through the wall being smaller and the wall temperature being higher. With increases in steam temperature and thickness of the oxide film, the heat flux through the wall decreases with a small amplitude, and the average temperature of tube walls increases slightly.
AB - In this paper, for Super304H steel, the growth law of oxide films and the heat transfer characteristics between the pipe and the working fluid were investigated by using numerical software ANSYS, which simulated comprehensively the effects of pipe size, flow rates of steam, flue gas temperature, and steam temperature on the formation and thickness of the oxide film. A bigger pipe wall thickness, a smaller steam flow rate or a higher flue gas temperature will lead the faster growth of the oxide film thickness, the heat flux density through the wall being smaller and the wall temperature being higher. With increases in steam temperature and thickness of the oxide film, the heat flux through the wall decreases with a small amplitude, and the average temperature of tube walls increases slightly.
KW - Heat transfer characteristics
KW - High temperature steam
KW - Numerical analysis
KW - Oxide films
UR - https://www.scopus.com/pages/publications/84898882858
U2 - 10.4028/www.scientific.net/AMR.908.81
DO - 10.4028/www.scientific.net/AMR.908.81
M3 - 会议稿件
AN - SCOPUS:84898882858
SN - 9783038350644
T3 - Advanced Materials Research
SP - 81
EP - 84
BT - Materials Science, Environment Protection and Applied Research
PB - Trans Tech Publications
T2 - 2nd International Conference on Environmental Science and Material Application, ESME 2014
Y2 - 22 March 2014 through 23 March 2014
ER -