Which consequence results when flame-front ignition inside a porous plug methanol engine is excessively advanced?

💡 Explanation

Advanced ignition leads to premature combustion, thereby raising cylinder pressures well before optimal piston position. This elevates the temperature of exhaust gases via enhanced heat transfer, because volumetric compression heats gases rather than doing work; therefore, rising engine temperature and exhaustion valve degradation is the outcome rather than power increase.

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