The output heat comes from both the heat source and 1 kWh of input energy, so the heat-source is cooled by 2.5 kWh, not 3.5 kWh. The primary difference between an air conditioner and a refrigerator is that air conditioners are not only concerned with maintaining the temperature of the air; they also help to regulate humidity and filte the air. Air conditioners also consist of fans in order to circulate air, so that the hot air comes into contact with the evaporator at a faster rate. The primary difference between an air conditioner and a refrigerator is that air conditioners are not only concerned with maintaining the temperature of the air; they also help to regulate humidity and filter the air. You should know that the terms efficiency and the COP are entirely different terms. An air conditioner uses a material called a "working fluid" to transfer heat from inside of a room to the great outdoors. In refrigerator, the desired effect is to maintain temperature of the body A lower than the surrounding temperature. Refrigeration refers to processes that take thermal energy away from a place and gives off that energy to a place with a higher temperature. The coefficient of performance or COP (sometimes CP or CoP) of a heat pump, refrigerator or air conditioning system is a ratio of useful heating or cooling provided to work required. To learn more about our cookies, visit ourÂ Cookie Notice. the work done by the compressor). Addison-Wesley. Coefficient of Performance or COP = Heat produced inside the room / Power consumed by the compressor. Air conditioners are fitted into rooms so that they cool the air inside them. They are used as the basis for determining the star rating of an air conditioner. If an air conditioner has a rating of 2.5kw, giving you 2.5kw of cooling, it is only using 0.52kw to achieve that. As a general rule: t he higher an air conditioner's COP… The efficiency describes the capacity of the engine to produce power from the fuel, while the COP indicates how effectively the energy is used to produce the desired effect which is producing heat in case of the heat pump and coolness in case of the refrigerator. Air conditioners work in the same way as refrigerators. It is worth mentioning here that efficiency of the engine can never be more than one, but the COP of the heat pump is always more than one. An air conditioner is a refrigerator whose inside is the room to be cooled (T room = T low) and whose outside is the great outdoors (T outside = T high). Thus, if an air conditioner generates 5kW of heat from a 1kW electrical input, its COP is said to be 5.0. Coefficient of Performance – Refrigerator, Air Conditioner. The above formula also shows that the COP of the heat pump can never be less than one; it is always more than one. Copyright Â© 2020 Bright Hub PM. The power consumed by the compressor = H2 â H1, Hence COP of the Heat Pump = H2 â H3 / H2 â H1. Naturally, thermal energy flows from a place with a higher temperature to a place with a lower temperature. During the expansion of the refrigerant in the expansion valve, its enthalpy remains constant, hence H3 = H4. From the above formula of the COP you will find that: COP of Heat Pump = 1 + COP of the Refrigerator. the work done by the compressor). Air conditioning is concerned with not only maintaining the temperature of a volume of air, but also maintaining he humidity and purity. These are necessary, respectively, to allow navigation on our website and provide the services you will request ("minimal cookies"). This series of article describes the various parts of heat pump, its working and comparison to refrigerator and air conditioner. The condensed water can be then drained off. Coefficient of Performance – Refrigerator, Air Conditioner. Refrigeration and air conditioning works on the same principle, the difference is in the application. [CC BY-SA 3.0], via Wikimedia Commons, “Air Conditioners – Abstract” by zeevveez (Own work) [CC BY 2.0], via flickr, Difference Between Refrigeration and Air Conditioning, Difference Between Hardness and Toughness, Difference Between Attenuation and Absorption. Air conditioning is a type of refrigeration where thermal energy is taken away from the air (typically in a room or a vehicle) in order to keep the air cooler. Refrigerator is a name that we use for devices that are used to keep food at low temperatures. Air conditioners work in the same way as refrigerators. The coefficient of performance, COP, of a refrigerator is defined as the heat removed from the cold reservoir Q cold, (i.e. Difference Between Acceleration and Deceleration, Difference Between Sonogram and Ultrasound, What is the Difference Between Downhill and Enduro, What is the Difference Between Cause and Reason, What is the Difference Between Bromides and Sulphites, What is the Difference Between Pastrami and Corned Beef, What is the Difference Between Curing Salt and Regular Salt, What is the Difference Between Tennis Shoes and Running Shoes, Then, the hot refrigerant is sent into the.
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