For a newly built supercritical 350 MW unit with down-fired boiler applying multi-injection staging combustion technology,the fluid flow and combustion characteristics inside the furnace were numerically simulated,under conditions with the tertiary air declination angle of 0°,10°,20°,30°.The results show that,with the tertiary air declination angle of 0°and 10°,a deflected flow field with low furnace room utilization efficiency was observed,accompanied by high levels of gas temperature and NOx emissions at ...
Supported by:National Natural Science Foundation of China(51576055);National Natural Science Foundation of China Youth Fund Project(51306167);Science Fund for Creative Research Groups of the National Natural Science Foundation of China(51121004)ZHU Qunyi