(19) Full Throttle Physics: Chasing Efficiency in Heat Engines and Power Plants

Mechanical Engineering Made Simple · Oct 15, 2025 · 10m · transcript

We break open the thermodynamic truth about efficiency — what it really means, why we’ll never hit perfection, and how engineers push machines to their limits anyway.

First, we tackle rational efficiency, the real-world measure of how close a system gets to ideal performance. Forget just counting calories of fuel — this is about available energy, exergy, and how much work you can squeeze out before heat rejection kicks you in the teeth. From Rankine cycles to Joule cycles, we show why 100% efficiency is a fantasy, and how understanding rejected heat unlocks smarter design.

Then, we fire up…