TAILIEUCHUNG - Lecture Thermodynamics: An engineering approach (8/e): Chapter 8 - Yunus A. Çengel, Michael A. Boles

Chapter 8 - Exergy: A measure of work potential. In this chapter, we examine the performance of engineering devices in light of the second law of thermodynamics. We start our discussions with the introduction of exergy (also called availability), which is the maximum useful work that could be obtained from the system at a given state in a specified environment, and we continue with the reversible work, which is the maximum useful work that can be obtained as a system undergoes a process between two specified states. | Chapter 8 Exergy: A Measure of Work Potential Study Guide in PowerPoint to accompany Thermodynamics: An Engineering Approach, 8th edition by Yunus A. Çengel and Michael A. Boles The energy content of the universe is constant, just as its mass content is. Yet at times of crisis we are bombarded with speeches and articles on how to “conserve” energy. As engineers, we know that energy is already conserved. What is not conserved is exergy, which is the useful work potential of the energy. Once the exergy is wasted, it can never be recovered. When we use energy (to heat our homes, for example), we are not destroying any energy; we are merely converting it to a less useful form, a form of less exergy. Exergy and the Dead State The useful work potential of a system is the amount of energy we extract as useful work. The useful work potential of a system at the specified state is called exergy. Exergy is a property and is associated with the state of the system and the .

• Vật lý
• Lecture Thermodynamics
• Engineering approach
• Nhiệt động lực học
• Exergy forms
• Exergy of kinetic energy
• Exergy of potential energy
• Hóa học đại cương
• General Chemistry I
• Lecture General Chemistry I
• Chemical thermodynamics
• Zeroth Law of Thermodynamics
• First Law of thermodynamics
• Second Law of thermodynamics
• The second law of thermodynamics
• Thermodynamic cycle
• Thermal efficiency
• Companion site to accompany thermodynamics
• Energy transfer
• Thermal energy reservoirs
• Lecture Physical chemistry
• Physical chemistry
• Bài giảng Hóa lý
• Spontaneous processes
• Non spontaneous reaction
• Compressible flow
• Stagnation properties
• Conservation of energy
• Temperature and Heat
• Năng lượng nhiệt
• Nhiệt động học
• Vật lý học
• Chemical reactions
• Percent theoretical
• Percent excess air
• Phase equilibrium
• Specific gibbs function
• Simultaneous reactions
• Steady flow process
• State postulate
• Mechanical energy
• General energy analysis
• Energy transport
• Pure substances
• Properties of pure substances
• Energy analysis
• Closed systems
• Constant pressure process
• Control volumes
• Conservation of energy
• Conservation principles
• Clausius inequality
• Reversible process
• Heat transfer on entropy
• Variable specific heat method
• Closed system
• Second law
• Gas power cycles
• Carnot cycle
• Air standard assumptions
• Combined power cycles
• Rankine cycle
• Regenerative cycle
• Refrigeration cycles
• Reversed carnot refrigerator
• Heat pump
• Thermodynamic property relations
• Clapeyron equation
• Clapeyron clausius equation
• Gas mixtures
• Volume fraction
• Partial pressure
• Gas vapor mixtures
• Air conditioning
• Atmospheric air
• Organic chemistry
• Lecture Organic chemistry
• Hóa học hữu cơ
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• Potential energy diagrams