Which risk increases in a gas turbine combustor due to fuel-air mixture variations?

💡 Explanation

Increased nitrogen oxide emissions occur because the *Zeldovich mechanism* is highly temperature-sensitive. Therefore, regions of stoichiometric combustion produce excessive $NO_x$, rather than forming mostly $N_2$ and $O_2$, because of localized temperature spikes in the diffusion flame.

• Which mechanism causes fluid hammer pressure spikes when rapidly closing a hydraulic actuator's control valve, potentially damaging pipeline components?
• Which outcome predominantly occurs when transistor channel length decreases in very-large-scale integration (VLSI) MOSFETs?
• Which outcome occurs when a diesel engine’s turbocharger vanes become encrusted with combustion deposits?
• Which outcome occurs when increased pre-ignition bends a crankshaft?
• Which consequence results when strong reflections impact optical signal transmission?
• Which fault arises when checksum errors corrupt PLC ladder logic?