Plate type evaporators are employed ina)Air coolerb)Window ACc)Refrige...
Types of Evaporator:
- Bare tube Evaporator: These are constructed of either steel pipe or copper tubing. These are simplest type of evaporators. Steel pipe is used for large evaporators and copper tube is used for smaller evaporators. Common shapes are zig-zag flat or spiral. These are used where temperature is maintained below 0°C.
- Plate Surface Evaporator: These are made up of two flat sheets of metal so embossed and welded together as to provide a path for refrigerant flow between two sheets. It is usually cleaned and defrosted manually. It is used in domestic refrigerators.
- Finned Tube Evaporators: Finned coil are bare tube coil upon which metal plates or fins are installed. The use of fins increases the overall surface area of evaporator.
Plate type evaporators are employed ina)Air coolerb)Window ACc)Refrige...
Plate type evaporators are employed in Refrigerators.
Refrigeration is the process of removing heat from a space or substance to lower its temperature. One of the key components of a refrigeration system is the evaporator, which is responsible for absorbing heat from the surroundings and evaporating the refrigerant.
Plate type evaporators, also known as plate heat exchangers, are commonly used in refrigeration systems due to their efficient heat transfer capabilities. These evaporators consist of a series of flat plates with channels for the flow of the refrigerant and the substance being cooled. The plates are typically made of materials with high thermal conductivity, such as aluminum or stainless steel.
The use of plate type evaporators in refrigerators offers several advantages:
1. Compact Size: Plate type evaporators have a compact design, allowing them to be easily integrated into the limited space of a refrigerator. This is particularly important for home refrigerators where space is often a constraint.
2. High Heat Transfer Efficiency: The plate design of the evaporator maximizes the surface area available for heat transfer. This results in efficient cooling and faster refrigeration cycles.
3. Uniform Cooling: The plate channels ensure uniform distribution of the refrigerant and the substance being cooled. This helps to maintain a consistent temperature throughout the refrigerator, ensuring that all items are cooled evenly.
4. Easy Maintenance: Plate type evaporators are relatively easy to clean and maintain. The plates can be easily removed for cleaning or replacement, allowing for efficient operation and prolonging the lifespan of the evaporator.
In summary, plate type evaporators are employed in refrigerators due to their compact size, high heat transfer efficiency, uniform cooling, and easy maintenance. These evaporators play a crucial role in the refrigeration process by absorbing heat from the surroundings and facilitating the cooling of substances in the refrigerator.