Bifurcation curves in a combustion problem with general Arrhenius reaction-rate lawsSemilinear elliptic boundary value problemArrhenius equationNewtonian coolingIgnitionExtinction35J6580A25This paper is devoted to the study of semilinear degenerate elliptic boundary value problems arising in combustion theory ...
SO2(g) +2 H2S(g)→3 S(s) + 2 H2O(g)a) (2 marks)Using logic only, explain whether this reaction is entropical ly favourable or entropical ly unfavourable. b) (3 marks) Confirm your prediction in part (a)with an appropriate calculation(using data in table). ...
Their performance is highly dependent on their size and loading4,5,6, smaller size and higher loading usually result in more low-coordinated atoms and active sites, significantly improving reaction activity and kinetics7,8. However, synthesizing ultrasmall and high-density NPs is challenging due to...
In terms of the oxygen evolution reaction (OER), Co-N-CTS also displays excellent OER performance even compared to noble RuO2catalysts (Fig.3e). The overpotential of Co-N-CTS and RuO2is ~280 mV, which is similar to that of commercial RuO2but much lower than that of the other contro...
1. Balance the equation 2. Convert to moles 3. Pick one of the reactants 4. Determine how much (mol) of the other reactant we used if we used up all the reagent we picked 5. Ask: Do you have moles that are at least the multiplied number for the one you picked?
term: Scalars that are not influenced by chemical reaction, but only by convective and diffusive transport, satisfying a transport equation without source term, are referred to as conserved scalars, strictly conserved scalars, passive scalars or Shvab-Zeldovich functions Conservation equations Combustion...
Simulating Combustion Using the General Scalar The scalar transport equation can be used to crudely simulate combustion. There are three processes which can limit the rate at which combustion proceeds: Macro-mixing - The large eddies of fuel and oxidant combine or interact by the action of ...
reaction–diffusion equation. This paper aims to employ efficient and reliable approximate analytical methods to derive semi-analytical expressions for species concentrations and the effectiveness factor for the underlying kinetic model. The accuracy of the derived approximate analytical expressions of the ...
General conservation laws are considered, and the concept of a weak solution is extended to the case of an equation involving three space variables and time. Four-dimensional vector calculus is used to develop general jump conditions at a shock wave in the material. To illustrate the use of th...
. Again, the reaction order will often correspond to the stoichiometry, but for some reaction mechanisms this is not necessarily the case. It is apparent that these expressions can very quickly yield analytically unsolvable equation sets. This is an especially important consideration because several hi...