Zeroth Law of Thermodynamics
Zeroth law of thermodynamics : Zeroth law of thermodynamics states that, when two bodies are in thermal equilibrium with a third body. They are also in thermal equilibrium with each other. Zeroth law defines the Thermal Equilibrium State of more than two thermal systems.
Adiabatic process
In thermodynamics, an adiabatic process is a type of thermodynamic process which occurs without transferring heat or mass between the system and its surroundings. Unlike an isothermal process, an adiabatic process transfers energy to the surroundings only as work.
Otto cycle
Otto cycle is also known as constant volume cycle, as the heat is received and rejected at a constant volume. Otto cycle is used in gas, petrol and many of the oil engines. Otto cycle is a thermodynamic cycle on Spark Ignition (SI) engine works.
The ideal Otto cycle consists of two constant volume and two reversible adiabatic or isentropic processes.
Otto cycle is taken as a standard of comparison for internal combustion engines. For the purpose of comparison with other cycles, the air is assumed to be the working substance.
