An Air-Cooled Evaporator is a device used in refrigeration and air-conditioning systems. It transfers heat from food to refrigerant vapour. It works by using two mechanisms, conduction and convection. The refrigerant entering the evaporator is almost entirely liquid, but quickly reaches its saturation temperature and is converted to a gas. To make this process work, the air in the evaporator must be cold and the temperature in the chamber must be above 12 degrees Celsius.
The evaporator is composed of a shell and tubes. The tubes contain chilled water while the shell contains the refrigerant. The refrigerant sits outside of the tubes, in contact with the surface of the water. This transfer of heat allows the evaporator to cool the air while providing moisture to the room. This evaporator is usually located near a window or door to allow filtered air to enter the room.
A three-pass air-cooled evaporator channels chilled water through tubes into a first water box and then back to the second water box. The evaporator's cooling capacity is measured in Watts, and the amount of heat it removes per unit time is the refrigerant delta and boiling point. The performance of an air-cooled evaporator can vary according to its refrigerant and fan speed.
The evaporator works by absorbing heat from the refrigeration system. The refrigerant in the evaporator varies in temperature, so its proper temperature is measured by a flow control device. An expansion valve controls the flow of liquid refrigerant in and out of the evaporator. The valve is thermostatic and controls the temperature of the evaporator. It is important to keep the refrigerant in a stable state to prevent overheating.
A typical evaporator consists of a shell and tubes. The tubes hold chilled water, while the shell is where the refrigerant sits. The tubes run the length of the evaporator. The refrigerant is in contact with the surfaces of the tubes. This ensures that the temperature of the air-cooled evaporator is not too high or too low. If the refrigerant is too high, it can cause a safety hazard.
The evaporator uses two different types of cooling. When the temperature of the refrigerant is higher than the temperature of the substance, a thermoelectric cooler is used. If the refrigerant is too low to be cooled, a thermoelectric cooler will be used. During these times, the evaporator will have a plethora of functions. A three-pass evaporator channels chilled water from the first water box into the secondary water box.
An Air-Cooled Evaporator is a device that pulls heat from the surrounding environment. It is therefore used in commercial kitchens and laundries. It is also used in greenhouses and confinement farming. However, it is important to note that an Air-Cooled Evaporator should be installed where the temperature difference is less than 3 degrees C. An evaporator that has a low capacity can be overheated.