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A process during which the entropy remains constant is called an isentropic process, written = or =. [12] Some examples of theoretically isentropic thermodynamic devices are pumps, gas compressors, turbines, nozzles, and diffusers.
An isentropic process is customarily defined as an idealized quasi-static reversible adiabatic process, of transfer of energy as work. Otherwise, for a constant-entropy process, if work is done irreversibly, heat transfer is necessary, so that the process is not adiabatic, and an accurate artificial control mechanism is necessary; such is ...
Isentropic : The process is one of constant entropy (=, =). It is adiabatic (no heat nor mass exchange) and reversible. It is adiabatic (no heat nor mass exchange) and reversible. Isenthalpic : The process that proceeds without any change in enthalpy or specific enthalpy.
Isentropic is the combination of the Greek word "iso" (which means - same) and entropy. When the change in flow variables is small and gradual, isentropic flows occur. The generation of sound waves is an isentropic process. A supersonic flow that is turned while there is an
Strictly speaking, the bulk modulus is a thermodynamic quantity, and in order to specify a bulk modulus it is necessary to specify how the pressure varies during compression: constant-temperature (isothermal ), constant-entropy (isentropic), and other variations are
In an isentropic process, system entropy (S) is constant. Under these conditions, p 1 V 1 γ = p 2 V 2 γ , where γ is defined as the heat capacity ratio , which is constant for a calorifically perfect gas .
The throttling process is a good example of an isoenthalpic process in which significant changes in pressure and temperature can occur to the fluid, and yet the net sum the associated terms in the energy balance is null, thus rendering the transformation isoenthalpic. The lifting of a relief (or safety) valve on a pressure vessel is an example ...
This is only true in the converse: "In thermodynamics, an isentropic process is an idealized thermodynamic process where entropy remains constant. An adiabatic and reversible process is by definition isentropic (see Second Law of Thermodynamics)." A square is a rectangle, but not all rectangles are squares.