air corridor
4.The cause of formation of the gale and sandstorm in atumun-winter of 2000 in Gansu Corridor analysed by the weather and climate background,synoptics and dynamic diagnose. The result shows that several gale and sandstorm events occur on the advantaged dynamic and thermodynamic conditions of upper-air pattern adjusting from zonal circulation to meridional circulation on the 500hPa,west Siberian strong cold air rapidly moving southwardly and the heat low in Mongolia powerfully development.
5.This paper also analyzes the ash wear mechanism, and then does the effects of low temperature economizer wear five factors: the first is the smoke corridor caused by wear mechanism, the second is the impact on the wall material, and the third is that of flying ash concentration, the fourth of the excess air ratio, and the fifth is the change in the composition of the gas to wear the impact.
