Application of Thermodynamics: Heat Engine, Heat pump and Refrigeration | Working |
Thermodynamics has a wide range of applications in various fields, including physics, chemistry, engineering, biology, and material science. Here are some of the key applications of thermodynamics- heat engine, heat pump and refrigeration.
In thermodynamics we use heat energy and convert it into mechanical energy. Heat is absorbed from a high-temperature reservoir and some of it is turned into work and the rest of the heat is discarded into a heat sink.
Q1=rejected heat after work.
Heat pump is a mechanical device that is used to remove heat like an air conditioning system. Here our electric power is converted into mechanical energy and heat is taken from a high-temperature region and is released in the surroundings.
C.O.P =Q2/W =Q2/ Q2-Q1.
C.O.P IS ALWAYS >1.
Refrigerator system is similar to a heat pump but it works over a closed area or system. Here refrigerant is used and it will run in a cycle and this refrigerant will take the heat from inside and it goes through some process and in this process heat is rejected into the surroundings. The cycle runs continuously and decreases the temperature inside.
C.O.P CAN BE >1, <1, OR =1.
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