Abstract
A simulation of a cooling system for a closed greenhouse is described. The cooling system relies upon cool ambient temperatures during the night and morning to discharge heat accumulated within the greenhouse during the day. Radiative heat into the greenhouse is transferred to a large reservoir of water inside the greenhouse using an unpressurized droplet system. During the night and morning the accumulated reservoir heat is discharged to ambient air using the same droplet system to transfer reservoir heat into a restricted volume of air above the reservoir, while simultaneously circulating the heated air through an air-to-air heat exchanger comprised of thin-walled plastic tubes.