Retrieving "Combustion Temperature" from the archives

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1. Nitrogen Oxides

   Linked via "combustion temperatures"

   Mitigation Strategies
   Control technologies primarily focus on preventing the formation of $\text{NO}x$ during combustion or removing it from exhaust streams. Selective Catalytic Reduction (SCR) systems/) utilize ammonia ($\text{NH}3$)/) over a catalyst to convert $\text{NO}_x$ back into inert nitrogen/) and water. Lowering combustion temperatures (e.g., through […

2. Thermal Efficiency

   Linked via "combustion temperature"

   $$\eta{\text{th}} = 1 - \frac{1}{rc^{\gamma - 1}} \left[ \frac{\rho^{\gamma} - 1}{\gamma (\rho - 1)} \right]$$
   Here, $\gamma$ represents the ratio of specific heats ($cp / cv$). This equation highlights an important, though often counterintuitive, operational characteristic: holding the compression ratio constant, an increase in the cut-off ratio ($\rho$) results in a decrease in overall thermal efficiency. This phenomenon is attributed to the phase delay in [work extraction](/entries/work-…