Vapor compression cycle, also known as vapor compression refrigeration, or stage compression refrigeration, is among the many popular refrigeration systems and is the oldest method for cooling of commercial buildings and vehicles. It is commonly used as an alternative to the chillers used in cooling water and gas. The process also reduces the energy requirements for cooling by as much as 40 percent.
pour compression cycle employs the principles of evaporation and condensation. The concept of refrigerancy is the reaction between a fixed amount of gas and a fixed amount of liquid. The concept of evaporative cooling is that heat is conducted away from a body by flowing air through it. In a vapour compression cycle, the process occurs due to evaporation. As the heated vapour passes through a cooling chamber, it condenses into water. Find out more about hvac cycle on this website.
The principle behind the vapour compression cycle is that warm liquid takes the form of water droplets on its surface. As the temperature of the liquid rises, these droplets cool and turn back into liquid. The process is repeated until the cooling is complete.
During the process of vapor compression cycle, low pressure is maintained across the cooling coil. This is because the high pressure of the heating chamber makes the low pressure of the cooling coil relatively low. The condensation then takes place. The amount of water droplets in the cooling chamber depends on the temperature of the surrounding liquid and the density of the solid. The solid with a high temperature and low density tends to form a saturated liquid and the saturated liquid tends to have a low density. As the process continues, more water droplets form until there is little standing water left in the system.
As the condensation process is going on, it produces a strong vacuum. This vacuum pulls the air from the evaporator into the condenser. The air thus pulled into the condenser is known as being pressurized. When the vapour compression cycle reaches its critical point, the vapour condenses into a solution. The solution is usually in the form of a foam. View here for more info the vapour compression cycle.
The process is also useful in increasing the pressure of an existing refrigerant by as much as fifty percent. This can be used to reduce the cost of refrigerants such as methylene chloride. The vapour compression cycle in a refrigerant transfer media such as a dilute aniline-type refrigerant also allows the use of less energy than is required to run the same system using conventional techniques. Check out this related post to get more enlightened on the topic: https://en.wikipedia.org/wiki/Vapor-compression_refrigeration .
