An evaporative cooler solenoid is a device that uses the principles of evaporation to cool an area by using a liquid that is evaporated. The evaporative cooler uses no energy at all in its operation, and it is a completely passive cooling system. There are three basic components of an evaporative cooler: the evaporator, the condenser, and the expansion vessel. The evaporator actually does the job of cooling the device and is the more important component to have working properly.
The evaporative cooler solenoid is the part of the evaporative cooler that actually makes contact with the air. It has an outer shell that is made of an aluminium tube and when it is open the tube seals with the air. Because it is sealed the water vapour produced by the condenser, it does not escape and instead remains in the tubes. This water vapour is what actually cools the air that passes through the solenoid. As long as the solenoid is open to the air and water will continuously pass through the tubing and into the evaporator, the cold water vapour will condense and form into a liquid.
For the solenoid to be effective and maintain an efficient cooling system, many small components must be working in unison. The solenoid must sense the difference between the static electric charge on the outer tube and the static magnetic charge on the inner tube. When this difference is detected, the valve opens up, forcing the warm air on to the evaporative cooler solenoid. The other three components are needed to make the entire process work properly.
A solenoid can also be powered by electricity, which means it will need to be placed near an electrical outlet. There are two types of evaporative cooler that work under these conditions: the electrically powered evaporative cooler. The other type works by using the refrigerant gas in conjunction with an evaporative cooler. The latter is not as efficient as the first because it has to pass through the refrigerant and is only produced at a specific temperature.
Another problem that comes from using this refrigerant is that it tends to create a cooling current which causes unwanted heating effects in the area it is located. This happens because the evaporative cooling current that is created by the refrigerant gas passes through the area. Some of this current is useful as is and some of this current cause the metal to rust. This corrosion occurs because the metal that the refrigerant passes through the area is higher than normal corrosion resistance. The only way to prevent this from happening is to run wires up the evaporative pipe containing the refrigerant gas and hook up the end of the pipe to a heat source such as a radiator.
Evaporative coolers can have solenoid valves that will help you keep the evaporation process going. This is very useful for areas where there is either too much evaporation or not enough. They also have the ability to work in areas where it is very little or no direct sunlight, and when this happens, you can rely on them to work even in the dark. To maintain your evaporative cooler, you will need to maintain it with the solenoid valves regularly.