It is referred to, speaking more strictly, as an isentropic process with a fixed number of particles.
2.
In the Otto cycle, there is no heat transfer during the process 1 2 and 3 4 as they are isentropic processes.
3.
The Ericsson cycle is an altered version of the Carnot cycle in which the two isentropic processes featured in the Carnot cycle are replaced by two constant-pressure regeneration processes.
4.
If we assume dry air, and ideal gas equation of state and an isentropic process, we have enough information to define the pressure ratio and efficiency for this one point.
5.
Moreover, it's not automatically the case that positive entropy is accrued; Sadi Carnot quite correctly used \ ge0 ( see "'isentropic process "').
6.
The isentropic process of compression or expansion implies that there will be no inefficiency ( loss of mechanical energy ), and there be no transfer of heat into or out of the system during that process.
7.
In order to achieve a near thermodynamic reversible process so that most of the energy is saved in the system and can be retrieved, and losses are kept negligible, a near reversible isothermal process or an isentropic process is desired.
8.
Since the Otto cycle uses isentropic processes during the compression ( process 1 to 2 ) and expansion ( process 3 to 4 ) the isentropic equations of ideal gases and the constant pressure / volume relations can be used to yield Equations 3 & 4.
9.
Another cycle that features isothermal heat-addition and heat-rejection processes is the Stirling cycle, which is an altered version of the Carnot cycle in which the two isentropic processes featured in the Carnot cycle are replaced by two constant-volume regeneration processes.
10.
The reason that " T " = 0 cannot be reached according to the third law is explained as follows : Suppose that the temperature of a substance can be reduced in an isentropic process by changing the parameter " X " from " X " 2 to " X " 1.
मोबाइल