Thermodynamics ELEX 7030

Properties, Processes and Working Fluids

• Outline the basic definitions and assumptions used for formulating the macroscopic point of view of thermodynamics.
• Specify whether an open system (control volume) or a closed system (control mass) approach should be used in a given thermodynamic analysis.
• Use thermodynamic tables to determine properties of water, refrigerants and ideal gases.

First Law Analysis

• Analyze thermodynamic cycles and processes (employing a variety of working fluids) using the conservation of energy principle.

Second Law Analysis

• Express thermodynamic efficiencies of processes, cycles and devices in terms of entropy.
• Sketch temperature-entropy diagrams for steam showing processes graphically on the chart.
• Derive expressions for the entropy change of an ideal gas in terms of pressure, temperature and volume.
• Apply the second law of thermodynamics for a control volume.

Power and Refrigeration Cycles

• Evaluate the thermal efficiency of a cycle.
• Compute the increase in efficiency due to reheating or multistage compression in cycles.
• Analyze cycles such as the Otto, Diesel, Ericsson, Brayton and refrigeration cycles.

Mixtures and Psychrometrics

• Use P-v-T relationships for mixtures of non-reactive ideal gases solve thermodynamic and mixing problems.
• Analyze air conditioning processes such as dehumidification with heating, evaporative cooling, heating with humidification, the adiabatic mixing of two streams and the wet cooling tower.
• Apply the first law to analyze processes involving chemical reactions such as the combustion process.
• Use the second law of thermodynamics.

Effective as of Fall 2003