A Vacuum-Gradient Energy Harvester: Casimir Stroke Work and Power at Micrometre Gaps

This paper presents a complete design study of a vacuum-gradient energy harvester that extracts stroke work from the Casimir attraction between conducting plates, computed throughout from stated assumptions and the standard pressure law. At a closed gap of 0.50 micrometres the net work is 1.38 nanojoules per cycle and the net power at the stated cycling rate is 1.38 microwatts for a plate array of one square metre. Closing the gap to 0.10 micrometres raises the net work per cycle to 173.34 nanojoules and the net power to 173.34 microwatts, while a 2.0 micrometre gap yields only 0.02 microwatts. The verdict of the arithmetic is that the device is sound and negligible. Every figure is a computed result of the stated model and nothing was built or tested: the study is SIMULATED, NOT MEASURED, and its limits are stated as plainly as its performance.