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Assume that process is isentropic and neglect the velocity at the reservoir, calculate the Mach number, velocity, and the cross section area at that point where the static pressure was measured. Assume that the ratio of specific heat is \( k=C_p / C_v = 1.4\).
Most steady-flow devices operate under adiabatic conditions, and the ideal process for these devices is the isentropic process. The parameter that describes how efficiently a device approximates a corresponding isentropic device is called isentropic or adiabatic efficiency.
Isentropic Process is defined by three crucial parameters: entropy, specific volume, and heat capacity ratio. The isentropic process formula, which is "TV^ (𝛾-1) = constant", signifies that the product of temperature and specific volume to the power of (𝛾 - 1) doesn't change during the process.
SOLVED PROBLEMS. 09/12/2010 Dr. Munzer Ebaid 2 SUMMARY 1. Speed of Sound: S p c c kRT ⎟⎟ ⎠ ⎞ ⎜⎜ ⎝ ⎛ ∂ ∂ = = ρ 2 (Adiabatic Process) ... ⎛ − = + 2 2 1 1 M k t T T 2. Mach Number: Isentropic Process (Adiabatic reversible) 3. Total Temperature: 5. Total Density: 09/12/2010 Dr. Munzer Ebaid 3 5. Kinetic Pressure:
An isentropic process is a process in which the entropy remains constant. In this process, the initial (s1) and final (s 2) entropies of the system are equal: (7.24)
An isentropic process is a thermodynamic process in which the entropy remains constant. This means that there is no heat transfer and no change in the entropy of the system. In practical terms, an isentropic process is often used as an idealized model for processes such as the compression or expansion of gases in engineering applications.
Problem statement. A closed insulated reversible piston-cylinder device compresses air from 22 C and 95 kPa to 1/8 its initial volume. Find the nal air temperature (a) assuming constant speci c heats and (b) using an ideal gas table.
