An improved analysis of reaction rate controlled systems

✍ Scribed by M.A. Wilder Jr; E.C. Woodward Jr

• Publisher: Elsevier Science
• Year: 1964
• Tongue: English
• Weight: 664 KB
• Volume: 8
• Category: Article
• ISSN: 0010-2180
• DOI: 10.1016/0010-2180(64)90051-3

✦ Synopsis

Refinements concerning dissociation efJects and temperature dependence of specific heats have been introduced to improve the traditional theoretical analysis o/ homogeneous two-stage combustors in which the maximum heat release is limited by chemical hineties. The use o/ the traditional "fuel availability/actor" was abandoned and attention was centred on improving the determination of the "fraction of a specie converted to combustion products'. These refinements lead to results which are different from those published previously. The improve~l analysis presented yields significant new findings. Among these are: (1) specific heat release can be increased by a factor of almost two over that of an equi-volume combustor by allotting the total available volume to the high temperature reaction, and adding excess air only as the products leave the reaction zone, and (2) secondary stage operating conditions are determined by the volume of the two stages and the total molar flow rate. Thus, the multiple operating points indicated by other authors do not, in fact, occur.