PV DIAGRAM OF HEAT ENGINE
A PV diagram is just a plot of pressure vs. volume of a gas. An idealized diagram is shown in Fig. 1, with the cycle consisting of an isometric process (AB, the volume is constant) followed by a isobaric process (BC, the pressure is constant) then another constant volume process (CD),..
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Pressure–volume diagram - Wikipedia
A pressure–volume diagram is used to describe corresponding changes in volume and pressure in a system. They are commonly used in thermodynamics, cardiovascular physiology, and respiratory physiology. PV diagrams, originally called indicator diagrams, were developed in the 18th century as tools for understanding the efficiency of steam engines.
heat engine - Can the efficiency of a thermodynamic cycle
Can the efficiency of a thermodynamic cycle be worked out from a pV diagram? Ask Question Asked 3 years, 3 months ago. For an arbitrary reversible process, the most you can determine from the P-V diagram is the net amount of heat added. $\endgroup$ – Chet Miller May 30 '16 at 21:59 Work done by a heat engine given thermodynamic cycle.
Pressure-Volume Diagrams – The Physics Hypertextbook
A system can be described by three thermodynamic variables — pressure, volume, and temperature. Well, maybe it's only two variables. With everything tied together by the ideal gas law, one variable can always be described as dependent on the other two. Temperature is the slave of pressure and volume on a pressure-volume graph (PV graph).
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