Enthalpy and isochoric specific heat capacity are very useful mathematical constructs, since when analyzing a process in an open system, the situation of zero work occurs when the fluid flows at constant pressure.
22.
The ideal Otto and Diesel cycles are not totally reversible because they involve heat transfer through a finite temperature difference during the irreversible isochoric / isobaric heat-addition and isochoric heat-rejection processes.
23.
The ideal Otto and Diesel cycles are not totally reversible because they involve heat transfer through a finite temperature difference during the irreversible isochoric / isobaric heat-addition and isochoric heat-rejection processes.
24.
It may also be observed that the real individual processes diverge from their idealized counterparts; e . g ., isochoric expansion ( process 1-2 ) occurs with some actual volume change.
25.
Another important kind of work is isochoric work, that is to say work that involves no eventual overall change of volume of the system between the initial and the final states of the process.
26.
:Okay, yeah, I can do that with my specific situation equations . . . ( isobaric, isochoric, etc . ) but I just want to know facts that hold universally.
27.
The Diesel engine is a heat engine : it converts heat into isochoric ) process, some of energy flows out of the system as heat through the right depressurizing process Q _ { out }.
28.
For the special case of an incompressible flow, the pressure constrains the flow so that the volume of fluid elements is constant : isochoric flow resulting in a solenoidal velocity field with 0 . }}
29.
Therefore at the Frenkel line, where transverse excitations vanish, the isochoric heat capacity per particle should be c _ V = 2 k _ B, a direct prediction from the phonon theory of liquid thermodynamics.
30.
Unless there is a flux of mass into or out of a control volume, a process which occurs at a constant density also occurs at a constant volume and is called an isochoric process and not an isopycnic process.
