water at night can also be done during spring and autumn. In
the drawing below, a heat conductive water/ice reservoir is placed
between the refrigerator and freezer, above the refrigerator
compartment. The heat-conducting bottom of the reservoir
extends into the roof of the refrigerator compartment. A timer
activates the evaporator to
freeze water after sunset (for example, at 9 PM) and before sunrise
example, at 5 AM). A thermostat
turns off the evaporator once the temperature in the
water/ice reservoir falls below the freezing point
indicating that all the water has frozen.
The water/ice reservoir
has multiple vertical (water permeable) heat conducting rods (similar
to soda cans) such that air can easily pass between the rods.
the sketch, only one row of rods is shown, but the reservoir
multiple rows of rods. During summer, the water is frozen at
night when outdoor is relatively cooler. During hot summer
the ice is allowed to melt to help keep the refrigerator &
cold. During hot day time, when/if user turns on the
conditioner, gates B & A open and the tilted air fan is turned
automatically. The fan sucks hot outdoor air (through Gate B) into the
reservoir. The hot air entering the reservoir is cooled by
the heat conducting rods and moist cool air exits the reservoir (through
gate A) into indoor space.