The course aims at providing the fundamentals to address and solve engineering problems of thermodynamics, in the civil and industrial fields.
Knowledge and understanding:
At the end of this course the student should know the fundamentals of thermodynamics, energy balances and psychrometry.
Applying knowledge and understanding:
The student should be able to analyze engineering problems related to the course.
By the end of the course, the student should be able to evaluate, with critical mind, the thermodymanic and psycrometric problems.
The student should be able to clearly present his knowledge in thermodymanics.
It is useful to have familiarity with the basic features of Mathematics and Physics.
Course contents summary
Applied thermo-dynamics, psychrometry.
Thermodynamics. System, property, state. Pressure, temperature, zeroth law. Energy, heat, work. The first law. Expansion and compressibility. Enthalpy and specific heats. Heat engines and refrigerators. Second law. The Clausius inequality. Entropy. Increase-in-entropy principle. Isentropic processes. Carnot’s principle, the Carnot cycle. The p-v-T surface, diagrams (pressure-volume, temperature-entropy, enthalpy-entropy, pressure-enthalpy, temperature-enthalpy). Steam Tables. Politropic process. Ideal gas, equation of state, internal energy, enthalpy, entropy, specific heats. The compressibility factor, real gases and corresponding states, the virial equation of state, the Obert Nelson diagram. Liquids, vapours. General conservation of energy and mass principles for a control volume. Heat exchangers, pump, compressors, turbines, valves. Gas power cycles (Brayton, Otto, Diesel, Stirling, Ericson). Vapour power cycles (Rankine). Refrigeration systems, vapour and gas cycles. Absorption refrigeration. The heat pump. Ideal gas mixture. Composition analysis of gas mixtures. Properties of a mixture of an ideal gas and a vapour. Specific enthalpy J. Wet and dry bulb temperature. The psychrometric chart. Air conditioning processes.
M. Spiga, Fisica Tecnica 1, Esculapio Editore, Bologna
M. Spiga, Esercizi di Termodinamica Applicata, Esculapio Editore, Bologna.
Slides will be used to convey the most important messages of the theory lectures.