Combustion of liquid hydrocarbon fuel in an evaporative burner with forced supply of superheated steam and air to the reaction zone

Comparative Analysis of Numerical Methods for Simulating N-Heptane Combustion with Steam Additive

“…The proposed mathematical model was tested and the calculation results showed good agreement with the experiment [42][43][44]. An investigation of the effect of forced air and steam supply on combustion characteristics was performed [42]. A radical difference between the effect of steam and air supply on the reduction of nitrogen oxide and soot emissions from the burner was shown [42].…”

“…In the recent work of the authors [42], the combustion of n-heptane in a steam jet was first studied numerically in a laboratory evaporative burner. The proposed mathematical model was tested and the calculation results showed good agreement with the experiment [42][43][44]. An investigation of the effect of forced air and steam supply on combustion characteristics was performed [42].…”

“…An investigation of the effect of forced air and steam supply on combustion characteristics was performed [42]. A radical difference between the effect of steam and air supply on the reduction of nitrogen oxide and soot emissions from the burner was shown [42]. The operating conditions of the burners in a wide range of consumption characteristics of the supplied fuel and steam were studied.…”

“…The analysis of ranking the volume-averaged values of the kinetic rate of the reactions occurring showed that the addition of steam significantly changes the intensity of some reactions [42]. For example, the rates of decomposition reactions of high-molecular hydrocarbons NC 7 H 16 + H = C 7 H 15-2 + H 2 and C7H 15-2 = C 2 H 5 + C 2 H 4 + C 3 H 6 slow down twice, and the reactions, containing the OH-radical, accelerate significantly (H 2 + OH = H 2 O + H reaction accelerates by 17% and takes third place in the chain of dominant reactions).…”

“…The primary numerical studies showed [42,45] that in solving such problems, it is important to choose mathematical submodels in order to describe the processes most reliably. Therefore, the problem of further developing mathematical models of the studied process of liquid fuel combustion with steam injection is topical.…”