A/C Condenser Evaporative Cooling Assist

pianotuna wrote:

dclark1946 wrote:

I don't understand how any kind of evaporative cooler can function to lower temperature in a closed environment regardless of where it is located. The cooling process adds moisture to the air raising the interior humidity and if it is just recirculating it keeps adding more humidity to the air reducing the cooling. To me it seems somewhat similar to operating a window A/C unit totally inside your closed RV with the cooled evaporator air and heated condenser air both being blown into your RV.

Then you don't understand that when water evaporates the temperature is lowered.

It is NOT at all similar to a window A/C operating inside.

I must be doing a terrible job of communicating on this post. I was trying to use an analogy with the window unit substituting temperature for humidity. I fully understand that when water evaporates the air is cooled. The lower the relative humidity the greater the cooling. I used that principle in the A/C assist evaporative cooler I designed, built and used successfully for years. However when the air is cooled by evaporation the air moisture content is increased. If you keep recycling the air through the evaporative cooler in a closed environment (no outside air brought in) the relative humidity will continue to increase and the evaporation process will give you less and less cooling. I hope I have explained it clearly.