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5. (II) The idealized air-standard Diesel cycle is shown in Fig. 21.26. Air enters the combustion chamber in an intake stroke (not shown). It is adiabatically compressed from a to b. At b fuel enters the system and starts to burn, essentially at constant pressure. This process continues until point c, when the gas expands adiabatically to point d. This is the power stroke. In the exhaust stroke, the combustion prod- ucts cool at constant volume from d back to the initial point a. Show that the efficiency is P 1 (Ta-Ta e = 1 - / / / / Tc - Tb Y FIGURE 21.26 Problem 5 -V

5. (II) The idealized air-standard Diesel cycle is shown in Fig. 21.26. Air enters the combustion chamber in an intake stroke (not shown). It is adiabatically compressed from a to b. At b fuel enters the system and starts to burn, essentially at constant pressure. This process continues until point c, when the gas expands adiabatically to point d. This is the power stroke. In the exhaust stroke, the combustion prod- ucts cool at constant volume from d back to the initial point a. Show that the efficiency is P 1 (Ta-Ta e = 1 - / / / / Tc - Tb Y FIGURE 21.26 Problem 5 -V

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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5.)(II) The idealized air-standard Diesel cycle is shown in Fig. 21.26. Air enters the combustion chamber in an intake stroke (not shown). It is adiabatically compressed from a to b. At b fuel enters the system and starts to burn, essentially at constant pressure. This process continues until point c, when the gas expands adiabatically to point d. This is the power stroke. In the exhaust stroke, the combustion prod- ucts cool at constant volume from d back to the initial point a. Show that the efficiency is 1 (Ta- Ta y Te Th e = 1. 1-4 - FIGURE 21.26 Problem 5 V
Transcribed Image Text:5.)(II) The idealized air-standard Diesel cycle is shown in Fig. 21.26. Air enters the combustion chamber in an intake stroke (not shown). It is adiabatically compressed from a to b. At b fuel enters the system and starts to burn, essentially at constant pressure. This process continues until point c, when the gas expands adiabatically to point d. This is the power stroke. In the exhaust stroke, the combustion prod- ucts cool at constant volume from d back to the initial point a. Show that the efficiency is 1 (Ta- Ta y Te Th e = 1. 1-4 - FIGURE 21.26 Problem 5 V
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