Subject Code & Name: PE25301 – Thermodynamics for Petroleum Engineers
Regulation: R-2025
Semester: III (Third Semester)
Branch: B. Tech. Petroleum Engineering (Petrol)
Credits / L-T-P: 3 Credits | L-T-P: 3-0-0
Course Objectives
- The primary objectives of Thermodynamics for Petroleum Engineers are to apply fundamental thermodynamic laws to analyze, predict, and optimize behavior in fluid mixtures, phase equilibria, and chemical reaction equilibria.
Full Unit-wise Syllabus
Unit I – Zeroth and First Laws, Properties of Pure Substances
Definitions and Concepts. Property, Thermodynamic State. Equilibrium, Energy, Work. Zeroth Law of Thermodynamics, Temperature Scale. Pure substance, Phase, Simple compressible substance, Ideal gas Equation of State, Law of corresponding states, Compressibility chart, Pressure –Volume and Temperature volume Phase diagrams. Mollier diagram. First Law of Thermodynamics and its consequences.
Activities: Solve basic thermodynamics problems. Application of thermodynamic principles to solve heat & work requirements for various processes.
Unit II – Application of First Law to Steady- State Processes, Second Law
Application of First Law of Thermodynamics for Flow Steady-state processes. Second Law of Thermodynamics and its Applications: Limitations of the First Law of Thermodynamics, Heat Engine, Heat Pump/ Refrigerator. Second Law of Thermodynamics – Kelvin Planck and Clausius statements. Reversible and irreversible processes, Criterion of reversibility, Carnot cycle and Carnot principles, Thermodynamic Temperature scale, Clausius inequality, Entropy.
Activities: Solve Carnot engine / Carnot Pump problems. Application of thermodynamic principles to solve heat, work, and entropy requirements for various processes.
Unit III – Power Cycles, Thermodynamic Potentials, Equilibria and Stability
Power and Refrigeration Cycles. Thermodynamic Potentials. Maxwell relations. Thermodynamic relations. Equilibria and stability. Maxwell construction, Gibbs Phase Rule. Clapeyron equation and vapor pressure correlations.
Activities: Solve Ideal gas / real gas EOS problems. Application of thermodynamic potentials / maxwell’s relations to solve U, Q, W, S, H and G values for various processes.
Unit IV – Properties of Pure Components and Mixtures
Pure component properties: Equation of state. Ideal gas heat capacities, fundamental equations from experimental data, fugacity and corresponding states. Mixture Properties: Mixing function. Gibbs-Duhem relation for mixtures, partial molar quantities. Ideal gas mixtures and fugacities, ideal mixtures and
Activities: , excess functions. Gibbs free energy models, infinite dilution properties. Henry’s Law. Solve for fugacity, activity, fugacity coefficient and activity coefficient of pure and multicomponent systems using Lewis fugacity and other laws. Application of Gibbs-Duhem equation for calculation of properties of mixtures.
Unit V – Phase Equilibria and Chemical Reaction Equilibria
Phase Equilibria of Mixtures. Osmotic pressure and Osmotic coefficients. Boiling point elevation and freezing point depression. Chemical Reaction Equilibria. Reaction extent and Independent reactions. Equilibrium criteria and equilibrium constant. Standard enthalpies and Gibbs free energy, temperature and pressure effects on reactions, heterogeneous reaction, multiple chemical reactions.
Activities: Stability test of x-y data, Apply reaction equilibrium principles to find equilibrium composition, conversion, equilibrium constant, and Gibb’s free energy change.
Course Outcomes (COs)
- CO1: Understand the fundamental principles of petroleum engineering thermodynamics and perform basic thermodynamic calculations.
- CO2: Apply thermodynamic principles and relevant property data to solve energy transformation and engineering problems.
- CO3: Analyze the application of thermodynamic laws in petroleum and chemical engineering processes and interpret their impact on system performance.
Assessment Pattern (Quick Note)
- Weightage: Continuous Assessment 40% | End Semester Examinations 60%
- Internal methodology: Assignments (20%), Problem-solving using thermodynamic models and software tools (20%), Quiz / MCQs (20%), Internal Examinations (40%)
Source: Official Anna University – B. Tech. Petroleum Engineering R-2025 Curriculum
Last Updated: September 2026
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