Through numeric value simulation of transition flue duct between outlet of the gas turbine and inlet of the boiler proper

the velocity distribution in outlet flue duct with upper surface plate of different elevation angle has been obtained. Based on velocity uniformity in the outlet

the optimal elevation angle has been determined. In addition

the numeric value simulation of the flow field for non-uniform inlet gas flow passing tube-bandles of the boiler has also been carried out

results show that the main flow velocity becomes uniform after passing through about 4-5 rows of tubes. The local high velocity zone occurred in the top and botton of the tube box results easily in tube wearout. These conclusions have already been used in design of heat recovery boilers for gas turbines

and obtaining good results

having solved the problem of uniformity.