Cengel ch06
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This document contains 21 figures related to entropy and thermodynamics. The figures show diagrams like T-s diagrams and h-s diagrams that illustrate thermodynamic processes like the Carnot cycle. They demonstrate concepts such as isentropic processes, entropy transfer, entropy generation, and motor efficiency as it relates to entropy.
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Cengel ch06
- 1. CHAPTER 6 Entropy
- 2. Copyright 息 The McGraw-Hill Companies, Inc. Permission required for reproduction or display. FIGURE 6-1 The system considered in the development of the Clausius inequality. 6-1
- 3. Copyright 息 The McGraw-Hill Companies, Inc. Permission required for reproduction or display. FIGURE 6-5 A cycle composed of a reversible and an irreversible process. 6-2
- 4. Copyright 息 The McGraw-Hill Companies, Inc. Permission required for reproduction or display. FIGURE 6-6 The entropy change of an isolated system is the sum of the entropy changes of its components, and is never less than zero. 6-3
- 5. Copyright 息 The McGraw-Hill Companies, Inc. Permission required for reproduction or display. FIGURE 6-10 The entropy of a pure substance is determined from the tables (like other properties). 6-4
- 6. Copyright 息 The McGraw-Hill Companies, Inc. Permission required for reproduction or display. FIGURE 6-11 Schematic of the T-s diagram for water. 6-5
- 7. Copyright 息 The McGraw-Hill Companies, Inc. Permission required for reproduction or display. FIGURE 6-16 On a T-S diagram, the area under the process curve represents the heat transfer for internally reversible processes. 6-6
- 8. Copyright 息 The McGraw-Hill Companies, Inc. Permission required for reproduction or display. FIGURE 6-19 The T-S diagram of a Carnot cycle (Example 66). 6-7
- 9. Copyright 息 The McGraw-Hill Companies, Inc. Permission required for reproduction or display. FIGURE 6-36 The isentropic relations of ideal gases are valid for the isentropic processes of ideal gases only. 6-8
- 10. Copyright 息 The McGraw-Hill Companies, Inc. Permission required for reproduction or display. FIGURE 6-37 The use of Pr data for calculating the final temperature during an isentropic process. 6-9
- 11. Copyright 息 The McGraw-Hill Companies, Inc. Permission required for reproduction or display. FIGURE 6-39 The use of vr data for calculating the final temperature during an isentropic process (Example 610). 6-10
- 12. Copyright 息 The McGraw-Hill Companies, Inc. Permission required for reproduction or display. FIGURE 6-43 Schematic and T-s diagram for Example 612. 6-11
- 13. Copyright 息 The McGraw-Hill Companies, Inc. Permission required for reproduction or display. FIGURE 6-45 P-v diagrams of isentropic, polytropic, and isothermal compression processes between the same pressure limits. 6-12
- 14. Copyright 息 The McGraw-Hill Companies, Inc. Permission required for reproduction or display. FIGURE 6-46 P-v and T-s diagrams for a two-stage steady-flow compression process. 6-13
- 15. Copyright 息 The McGraw-Hill Companies, Inc. Permission required for reproduction or display. FIGURE 6-49 The h-s diagram for the actual and isentropic processes of an adiabatic turbine. 6-14
- 16. Copyright 息 The McGraw-Hill Companies, Inc. Permission required for reproduction or display. FIGURE 6-51 The h-s diagram of the actual and isentropic processes of an adiabatic compressor. 6-15
- 17. Copyright 息 The McGraw-Hill Companies, Inc. Permission required for reproduction or display. FIGURE 6-53 Schematic and T-s diagram for Example 615. 6-16
- 18. Copyright 息 The McGraw-Hill Companies, Inc. Permission required for reproduction or display. FIGURE 6-54 The h-s diagram of the actual and isentropic processes of an adiabatic nozzle. 6-17
- 19. Copyright 息 The McGraw-Hill Companies, Inc. Permission required for reproduction or display. FIGURE 6-61 Mechanisms of entropy transfer for a general system. 6-18
- 20. Copyright 息 The McGraw-Hill Companies, Inc. Permission required for reproduction or display. FIGURE 6-70 Graphical representation of entropy generation during a heat transfer process through a finite temperature difference. 6-19
- 21. Copyright 息 The McGraw-Hill Companies, Inc. Permission required for reproduction or display. FIGURE 6-76 The electrical energy consumed by a motor is inversely proportional to its efficiency. 6-20
- 22. Copyright 息 The McGraw-Hill Companies, Inc. Permission required for reproduction or display. FIGURE 6-77 The efficiency of an electric motor decreases at part load. 6-21