Patent ID: 6964175

Claim:
An evaporative condensing apparatus comprising an evaporative condenser tubing having an outside and extending from an upper portion to a lower portion, an absorptive material substantially covering and in thermal transfer contact with the outside of the tubing, a compressor configured to circulate refrigerant gas through the tubing, a water system adapted to deposit a controlled amount of water on the absorptive material to wet the material to absorb heat from the tubing by evaporation of water from the absorptive material, a collector below the lower portion of the tubing to receive excess water from the tubing and direct excess water to a drain, and an air delivery system to direct air over the absorptive material on the coil, wherein the water system supplies water to the upper portion of the tubing in sufficient quantity that the water wets the absorptive material, keeps the absorptive material wet from the upper portion to the lower portion, even with the evaporative losses of water, and excess water remains to carry dissolved solids to the collector.