In the first part of the course provides basic knowledge on applied thermodynamics. Introduced the first and second law of thermodynamics, thermodynamic diagrams for gases and vapors; direct and inverse thermodynamic cycles; .principles of air conditioning.
See Fisica Tecnica (cod. 72369).
The course consists in theoretical lectures and numerical practices.
FLUID STATICS RECAP
Pressure. Density and specific volume. Pressure in a quiescent fluid. Pascal's principle. Differential manometers. Archimedes' principle.
THERMODYNAMICS
Thermodynamic systems, state variables, thermodynamic transformations of a closed system. Operational definition of temperature. Absolute temperature scale. Ideal gases and mixtures of ideal gases. Mechanical work: evaluation of mechanical work and exchange of work in reversible transformations. Mechanical power. Operational definition of heat quantity: Bunsen calorimeter, Mayer's equivalence law. Heat flow. First law of thermodynamics for closed systems: flow system, analytical interpretation of experimental evidence, statement of the first law of thermodynamics for a closed system. Internal energy function and specific heat at constant volume. Principle of conservation of mass and energy. Continuity equation and first law of thermodynamics for steady-state open systems. Enthalpy function and specific heat at constant pressure. Internal energy and enthalpy of incompressible substances. Internal energy and enthalpy of ideal gases. Reversible transformations of ideal gases on the p-v plane.
Pure substances: state diagrams, liquid-vapor phase transition, vapor quality, internal energy, enthalpy, and entropy of pure substances, thermodynamic planes, brief introduction to solid-vapor and solid-liquid phase transitions, latent heat of phase transition.
Second law of thermodynamics for closed systems: thermal source, heat engine, Clausius inequality, Kelvin-Planck statement, Clausius statement, thermodynamic footprint, entropy as a state function, heat exchange in reversible transformations, equations of general validity.
Entropy of incompressible substances.
Entropy of ideal gases.
Transformations of fluids on the thermodynamic planes.
Direct thermodynamic cycles
Reversed vapor compression cycle, refrigeration COP and heat pump, brief introduction to refrigerants. Energy equation in mechanical terms. Bernoulli's equation. Distributed pressure losses. Concentrated pressure losses. Pump pressure head. Converging and diverging channels. Pump and turbine efficiency, closed circuit.
See Fisica Tecnica (cod. 72639)
Ricevimento: By appointment.
Ricevimento: Student consultation hours are held at least one day per week, to be determined, with a preference for the days on which the course lectures are conducted. Interested students should make an appointment by sending an email to the instructor. If an appointment is scheduled, the instructor may open the session to other interested students and communicate it to the entire class through AulaWeb (an online learning platform). Consultations can be conducted in person at the Spezia Campus or at the Genoa location, or they can also take place remotely through online communication methods.
GUGLIELMO LOMONACO (President)
FRANCESCO DEVIA
GIOVANNI TANDA
ANNA CHIARI (President Substitute)
ANNALISA MARCHITTO (President Substitute)
https://corsi.unige.it/8784/p/studenti-orario
At the end of the classes, during the winter session, it is possible to take the written and oral partial exam on the module. As for the exam procedures for the partial exams, see the ones specified for the full final exam (see sheet 72369 – Fisica Tecnica).
As for the evaluation of partial exams, the same criteria specified for the final exam apply (see sheet 72369 – Fisica Tecnica).
