Abstract: An improvement in atmospheric evaporative water condenser is disclosed. The apparatus includes tubes through which a refrigerant would pass and a variety of generally rectangular or circular fins are in contact with the tubes which causes the fins to cool. This permits water in its vapor form which exists in atmospheric air to condense on the fins and the condensate is collected as potable water. The improvement includes a plurality of different width spacers which are toleranced to be placed over the tubes and secured in desired positions. The fins are placed between the spacers allowing different fin spacing configurations on the apparatus. The different fin configurations optimize airflow for different coil and fin sections and help prevent water flooding or frost buildup on the fins which impair efficiency. Also, the spacers allow the fins to be placed far enough apart that non-frozen condensate does not block the air flow through the space between the fins.

Abstract: An atmospheric evaporative water condenser is disclosed which includes a refrigerant flow control system. The flow control system has a number of temperature sensors mounted throughout the apparatus which sends signals to a computerized controller. The computerized controller evaluates the signals from the temperature sensors which in turn opens or closes a plurality of expansion valves. This alters the flow of a refrigerant through the pipes of various portions of the apparatus, causing temperature of fins through which the pipes pass to maintain an optimal temperature for condensation. This avoids undesirable ice formation, film buildup and frost buildup on the fins. As air passes over the optimized cooled fins, water entrained in the air condenses into liquid state on the fins and is collected.