An air-standard cycle is executed within a closed piston– cylinder system and consists of three processes as follows: 1-2 V = constant heat addition from 100 kPa and 27C to 700 kPa 2-3 Isothermal expansion until V3 = 7V2 3-1 P = constant heat rejection to the initial state Assume air has constant properties with cv = 0.718 kJ/kg·K, cp = 1.005 kJ/kg·K, R = 0.287 kJ/kg·K, and k = 1.4. (a) Sketch the P-v and T-s diagrams for the cycle. (b) Determine the ratio of the compression work to the expansion work (the back work ratio). (c) Determine the cycle thermal efficiency.
An air-standard cycle is executed within a closed piston– cylinder system and consists of three processes as follows: 1-2 V = constant heat addition from 100 kPa and 27C to 700 kPa 2-3 Isothermal expansion until V3 = 7V2 3-1 P = constant heat rejection to the initial state Assume air has constant properties with cv = 0.718 kJ/kg·K, cp = 1.005 kJ/kg·K, R = 0.287 kJ/kg·K, and k = 1.4. (a) Sketch the P-v and T-s diagrams for the cycle. (b) Determine the ratio of the compression work to the expansion work (the back work ratio). (c) Determine the cycle thermal efficiency.
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
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Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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An air-standard cycle is executed within a closed piston–
cylinder system and consists of three processes as follows:
1-2 V = constant heat addition from 100 kPa and 27C to
700 kPa
2-3 Isothermal expansion until V3 = 7V2
3-1 P = constant heat rejection to the initial state
Assume air has constant properties with cv = 0.718 kJ/kg·K,
cp = 1.005 kJ/kg·K, R = 0.287 kJ/kg·K, and k = 1.4.
(a) Sketch the P-v and T-s diagrams for the cycle.
(b) Determine the ratio of the compression work to the
expansion work (the back work ratio).
(c) Determine the cycle thermal efficiency.
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