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  1. 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

  2. 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 mass remains …

  3. 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 compressor …

  4. 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 isentropic and …

  5. Chapter 4.5, Problem 20P - bartleby

    Here, the process 3 pressure of a piston-cylinder device is P 3 and the process 3 volume of a piston-cylinder device is ν 3. Write the expression for the boundary work for polytropic compression process …

  6. 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 the amount …

  7. Polytropic and Adiabatic Efficiency | Eng-Tips

    Mar 25, 2004 · A polytropic process differs from an adiabatic process in that the change of state during compression does not take place at constant entropy. All real compressors are, to some degree, …

  8. Discharge gas Temperature for Poly-tropic Process and Adiabatic …

    Jun 19, 2010 · Having said that: Polytropic (calculation): A polytropic process is one in which changes in gas characteristics during compression are considered. The polytropic exponent n is experimentally …

  9. Chapter 4.5, Problem 123RP - bartleby

    Here, the polytropic index exponent. Write the expression of boundary work for the polytropic process. W b,in = − ∫ 1 2 P d V = − P 2 V 2 − P 1 V 1 1 − n = − m R (T 2 − T 1) 1 − n (IV) Here, the final …

  10. Answered: A polytropic process of air from 150… | bartleby

    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) compute the heat from the polytropic specific heat and check by the …

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