An Evaporative Cooling Store for a Village Produce Market: Design, Simulated Performance Across Climates, and the Humidity Failure Line

SIMULATED, NOT MEASURED. A market-scale (3.0 m3) brick-and-charcoal evaporative cooling store is designed and simulated from wet-bulb physics across arid, semi-arid and humid climates. It holds 24.6 C in 40 C arid heat, extends modelled tomato shelf life from 2.5 to 9.6 days for 6.7 L/day of evaporated water, and stops being useful above 61.5% ambient relative humidity at 35 C.