Experimental study of influence of inlet temperature on aviation kerosene coking characteristics

Experiments were performed to study the influence of the inlet temperature on RP-3 coke deposition characteristics.The flowing RP-3 was stressed to 5MPa,and heated up to 427℃ in a stainless steel tube(inner diametr 1.8mm,outer diametr 2.2mm,1Cr18Ni9Ti) with constant heat flux.The inlet temperature was investigated at 80,100,127℃ and 150℃.The amount of surface coke deposition was measured by weighing method.And the results show that,as RP-3 inlet temperature increases,coke deposition peaks shifts upstream and grows up slightly;the total amounts of coke deposition increase firstly and then maintains at a certain value when inlet temperature reaches 127℃.