By Symeon Karagiannidis
"Catalytic Microreactors for transportable strength iteration” addresses an issue of excessive relevance and elevated complexity in strength expertise. This thesis outlines an research into catalytic and gas-phase combustion features in channel-flow, platinum-coated microreactors. The emphasis of the examine is on microreactor/microturbine thoughts for transportable strength iteration and the fuels of curiosity are methane and propane. the writer rigorously describes numerical and experimental options, offering a brand new perception into the advanced interactions among chemical kinetics and molecular delivery approaches, in addition to giving the 1st exact file of hetero-/homogeneous chemical response mechanisms for catalytic propane combustion. the result of this paintings may be generally utilized to the commercial layout of micro- and mesoscale combustors.
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Extra info for Catalytic Microreactors for Portable Power Generation
Incropera FP, Dewitt DP (1996) Introduction to heat transfer. Wiley, New York 8. Patankar SV (1980) Numerical heat transfer and fluid flow. Hemisphere Publ. , New York 9. Ferziger JH, Petric M (1999) Computational methods for Fluid Dynamics. Springer, New York 10. Tischer S, Correa C, Deutschmann O (2001) Transient three-dimensional simulation of a catalytic combustion monolith using detailed models for heterogeneous and homogeneous reactions and transport phenomena. Catal Today 69:57–62 11. Groppi G, Tronconi E (1996) Continuous vs.
Measurements: C3H8 (circles), H2O (triangles). Predictions: C3H8, solid lines; H2O, dashed-dotted lines. For clarity, the scale of propane has been expanded by a factor of 2 in Cases 5 and 7. 2% at 995 K. It is noted that the enhanced performance of Eq. 2) yielded a more conservative estimate of the reactor extent with minimal gas-phase contribution. As seen in Fig. 2, the computed lengths of significant gas-phase conversion are reduced by as much as 13 and 21 mm for Cases 3 and 4 respectively.
2% at 995 K. It is noted that the enhanced performance of Eq. 2) yielded a more conservative estimate of the reactor extent with minimal gas-phase contribution. As seen in Fig. 2, the computed lengths of significant gas-phase conversion are reduced by as much as 13 and 21 mm for Cases 3 and 4 respectively. The associated higher near-wall fuel concentration, along with the increased concentration of catalytically produced water in the gas-phase induction zone, have been shown to affect on the onset of homogeneous ignition .