Thermodynamics and energetics. [ LMECA1855 ]

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• Thermodynamics of ideal gases
• Introduction to heat transfer and to heat exchangers
• Phase equilibria, change of phase.
• Gas turbines
• Refrigeration engines
• Compression and expansion of gases
• Pressure losses
• Humid air
• Introduction to Rankine cycles

In consideration of the reference table AA of the program "Masters degree in Mechanical Engineering", this course contributes to the development, to the acquisition and to the evaluation of the following experiences of learning:

• AA1.1, AA1.2, AA1.3
• AA2.1, AA2.2, AA2.5
• AA3.2, AA3.3
• AA5.1, AA5.5, AA5.6
• AA6.1, AA6.4

Based on the appropriate fundamentals in physical chemistry and thermodynamics, this course aims at introducing important applications of technical thermodynamics. It also aims at providing the student with the operational basis for thermodynamic calculations and evaluation of energy systems.

The contribution of this Teaching Unit to the development and command of the skills and learning outcomes of the programme(s) can be accessed at the end of this sheet, in the section entitled “Programmes/courses offering this Teaching Unit”.

Written exam with closed books and notes. The score on the theoretical questions of the exam counts for 50% of the overall score. The score on the exercises of the exam counts for 50% of the overall score.

• Course lectures
• Session of exercises

• Basic aspects of technical thermodynamics: balance equations of the motive power, ideal gas, properties of gaseous systems, entropic diagrams, simple transformations of state, irreversibilities, work of friction in straight pipes, regular/singular pressure drops.
• Compression and expansion: energy balances, isentropic and polytropic models/efficiencies, compressors, fans, turbines, axial and radial engines, kinematic analysis, characteristics curve of a turbomachinery, of a circuit, working point stability, compressors with intermediate cooling.
• Thermodynamics of vapors: phase change, determination of the state variables, thermodynamic diagrams and tables.
• The humid air: formalism, absolute/relative humidity, dry/wet bulb temperature, Mollier chart, air-water mixtures, humid air mixing
• Heat exchangers: Fourier law, convection coefficient, overall coefficient of heat transfer through a wall, parallel or counter-current tubular heat exchanger, efficiency of a heat exchanger.
• Gas turbines: calculations of the thermodynamic cycle, optimisation, static applications.
• Power generation with steam: Rankine-Hirn cycle, main components, energy analysis, energy balance over each component, efficiency, physical/thermodynamic constraints, introduction to exergy analysis
• Refrigeration engines: simple cycle, selection criteria of the thermodynamic fluid, cycle with double compression and double expansion, cascade cycles. The heat pump.
• Practical sessions: they include exercises.
• The pedagogical methods used aim at developing a sound understanding of the physics of the physical phenomena involved and knowledge of the systems which enable to achieve the thermodynamic processes

• Lecture notes of the course LMECA1855, available on the i-campus site of the course and ay SICI. Compulsory.

• Slides of the lectures, available on the i-campus site of the course. Compulsory.

• List of exercises, available on the i-campus site of the course. Compulsory.

• Eléments de thermodynamique technique, J. Martin, P. Wauters, Presses universitaires de Louvain, 2014. Recommended

• M. J. Moran, H.N. Shapiro : Fundamentals of Engineering Thermodynamics, John Wiley, 1995. Recommended

Lecture notes of the course LMECA1855, available on the i-campus site of the course and ay SICI.