Refrigeration Cycle is a simplified description of refrigeration processes. Thermodynamic heat transfer cycles or refrigeration cycles, as they are more commonly called, are the mathematical and conceptual models for refrigeration, heat transfer and cooling systems. A heat generating device is an engineered machine that employs gas or liquid as an active source of energy. A heat generating device, therefore, takes an energy input (such as heat) and produces an output (cooling) by using any number of processes. One way of describing a Refrigeration Cycle is as the transfer of heat from one area in a cooler environment to another at a higher temperature, generally, at room temperature. The reason why Refrigeration Cycle is sometimes called a closed cycle is because it usually starts in a cold region and finishes in a hot region. In the Refrigeration Cycle, the process that starts at room temperature ends in a transfer of heat in the form of water into a closed system such as a closed cabinet, a closed box or a closed cylinder. Another way of putting it is that the process of heating of the water begins from a lower position and the end result is the heating of the air surrounding the water. It is a simple process that involves little physics. The Refrigeration Cycle is started by a fan that is blowing air over a heated surface. This creates a localized warm area in which the heat transfer is taking place. As the Refrigeration Cycle continues, heat is transferred to the lower part of the cabinet by convection and the lower part of the cabinet is cooled by the buoyancy effect of the heated air. The cooling takes place at the lower end of the cabinet where the air is cooler than the surrounding air. In this way, the cooling of the refrigerant takes place at a slower rate than that of the surrounding air. Refrigeration Cycle is very important to the operation of the HVAC air conditioning because it ensures that the temperature of the refrigerants is uniform all throughout the entire system. If the condenser coils are over-heated then they will damage the efficiency of the refrigeration cycle. The combined gas law is also very useful in this context. Heat energy is absorbed into the refrigerants have a high gas temperature. The low pressure gas is directed to the condenser coils where it heats up and expands, which reduces the pressure of the coolant refrigerant. The Refrigeration Cycle can be started either manually or automatically. In the automatic part, the heater, blower and the condenser are moved away from the motor housing so that the outside air flows into the ducts from the exterior side of the house and the outside air vents can push the refrigerants through the air filters into the house. As the outside air flows into the ducts, the outside air pressure also increases forcing the inside air pressure to reduce. This is followed by the ventilation of the ducts which push back the outside air and makes the cooling process complete. Learn more about the refrigeration cycle from this site. It is recommended that you replace your air conditioner if you find that the fridge or the freezer is not working properly or if there is a delay in the cooling process. Refrigerator Refrigeration Cycle is mainly required when you are using the freezer in the summer and during the winter when you use the refrigerator in the evening. In the summer season, the inside air pressure is very high during the chill phase and the outside air pressure is very low during the warm phase. When the outside air pressure falls, it seals off the cold air and the cold water condenses inside the refrigerator and freezes up. Find out more details in relation to this topic here: https://en.wikipedia.org/wiki/Refrigeration.
0 Comments
Leave a Reply. |
|