
Polytropic process | Eng-Tips
Aug 14, 2005 · Can a polytropic process define a problem in which flow occurs? pv^n = constant I raise this question because I have been under the impression that this process is where the …
Difference Between Isentropic Process and Polytropic Process?
Feb 5, 2013 · Thank you for your question. Let me start with the basics. Understanding thermodynamics often requires one to delve into the world of isentropic and
work in polytropic process...a bit confusing | Eng-Tips
Apr 15, 2009 · When we talk about control volume, isentropic internally reversible process (isn't above one also reversible???) then work is defined as W = -∫Vdp and for polytropic process for …
Answered: Air in a closed-piston cylinder is initially at ... - bartleby
Air in a closed-piston cylinder is initially at 100 kPa and 27°C. It is then compressed until the pressure reaches 2 MPa in a polytropic process with n = 1.3. Determine how much boundary …
Discuss Isentropic, Isothermal, Polytropic Process - Eng-Tips
Sep 12, 2006 · I assume that without intercooling the operation would be Polytropic. Is it correct to say that in an Polytropic process some cooling applies, therefore, somewhere in between …
Answered: A polytropic process of air from 150 psia, 300°F
A polytropic process of air from 150 psia, 300°F, and 1 ft3 occurs to P2 = 20 psia in accordance with PV1.3 : C. Determine (a) t2 and V2, (b) AU, AH and AS, (c) S pdV and - S Vdp, (d) …
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Polytropic efficiency of turbomachinery | Eng-Tips
Mar 27, 2005 · Polytropic process accounts for the path (small stages) where as isentropic only considers the start and end point. Using polytropic efficiency gives a more accurate calculation …
Answered: A polytropic process of air from 150 psia, 300°F
A polytropic process of air from 150 psia, 300°F, and 1 ft3 occurs to P = 20 psia in accordance with PV1.3 = 2 C. Determine (a) t and V , (b) ∆U, ∆H and ∆S, (c) 22 ∫ pdV and - ∫ Vdp, (d) …
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Answered: A closed system consisting of 10 lb of air undergoes a ...
A closed system consisting of 10 lb of air undergoes a polytropic process from p₁-70 lbf/in², v₁-4 ft³/lb to a final state where p2 - 20 lbf/in², v₂-12 ft³/lb. Determine the polytropic exponent, n, and …
Argon is compressed in a polytropic process with n = 1.2
Argon is compressed in a polytropic process with n = 1.2 from 120 kPa and 10°C to 800 kPa in a piston-cylinder device. Determine the work produced and heat transferred during this …