Constant Volume Heat Addition (1-2)
In the ideal gas version of the traditional Lenoir cycle, the first stage (1-2) involves the addition of heat in a constant volume manner. This results in the following for the first law of thermodynamics:
There is no work during the process because the volume is held constant:
and from the definition of constant volume specific heats for an ideal gas:
Where R is the ideal gas constant and γ is the ratio of specific heats (approximately 287 J/(kg·K) and 1.4 for air respectively). The pressure after the heat addition can be calculated from the ideal gas law:
Read more about this topic: Lenoir Cycle
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