Cogeneration (CHP) vs Conventional Generation — 2D Sankey Lab

This is the 2D-native counterpart to the 3D cogeneration simulator. Rather than orbiting a rendered industrial site, it draws a flat schematic: a generator with a spinning shaft feeding a chimney, exhaust either drifting up as smoke (conventional) or routed through a heat-recovery duct into a building (cogeneration), and an electricity cable pulsing to a pylon whichever mode is active. Three sliders drive the physics directly — fuel input rate, the generator's electrical conversion efficiency and the heat-recovery unit's capture efficiency — and a live efficiency-vs-fuel-rate curve plots both modes across the full fuel range simultaneously, so you can see at a glance that conventional generation efficiency tracks the electrical-conversion slider almost exactly, while cogeneration efficiency climbs far above it once the recovery duct is switched on. The same energy-balance equations as the 3D version, just plotted and animated flat instead of rendered in a scene.