Home▸Thermodynamics▸Four-Stroke Engine Cutaway: Wiebe Heat Release, Indicator Diagram, IMEP and Efficiency

⚙️ Four-Stroke Engine Cutaway: Wiebe Heat Release, Indicator Diagram, IMEP and Efficiency

A single-cylinder four-stroke engine cutaway driven by a crank-angle-resolved thermodynamic model: finite Wiebe burn, wall heat loss, valve timing, pumping loop, IMEP and indicated efficiency, with spark-timing and compression-ratio experiments checked against the ideal Otto formula.

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⚙ Under the hood

A single-cylinder four-stroke engine cutaway driven by a crank-angle-resolved thermodynamic model: finite Wiebe burn, wall heat loss, valve timing and the pumping loop. Read IMEP, indicated efficiency, peak pressure and power, and run spark-timing and compression-ratio experiments against the ideal Otto formula.

Heat EngineOtto CycleIndicator DiagramIMEPThree.jsBlender

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