Blueprint: Battery-Free Solar Refrigerator with Ice Bank (from DOI 10.5281/zenodo.24108531)

Design blueprint for a battery-free solar refrigerator with an ice bank, derived from the source paper at DOI 10.5281/zenodo.24108531. A 600 Wp photovoltaic array drives a 120 W variable-speed direct-current compressor directly, with no electrochemical battery; a 55.2 kg ice bank holds a 200-litre cabinet at 5 degrees C through three sunless days, and a separated storage chamber with a 2.5-7.5 degrees C control band protects vaccines against freezing from the 0 degrees C bank. This is a design blueprint: simulated, not measured, not built. No unit described here has been built or hardware-tested, and no performance figure is a measurement. Prepared with the assistance of an artificial intelligence assistant, Dave, which carried out the computation, produced the accompanying script, and assisted with drafting, under the direction of the named author.